China Changzhou Dingang Metal Material Co.,Ltd. Company News

The Eco-Code for Aluminum Coils: The Green Revolution for Recyclable Metals Under the dual challenges of climate crisis and resource depletion, aluminum coil has become the core carrier of the green transformation of the global manufacturing industry with its "infinite cycle" environmental protection gene. From Coca-Cola's recycled aluminum cans to Tesla's low-carbon car body, from zero-carbon buildings to photovoltaic power plants, how can aluminum coils redefine industrial sustainability with the data of "recycling rate of more than 90% and energy consumption reduction of 95%"? This article dismantles its environmental protection code in depth and reveals the international benchmark case. 1. The environmental protection gene of aluminum coil: why is it called "the green king of the metal industry"?The environmental value of aluminum coil is rooted in its full life cycle advantages, covering four major links: mining, production, use and recycling:Recycling immortality: the recovery rate is over 90%Aluminum can be recycled indefinitely without degradation of performance. Around 75% of the world's aluminium products are still recycled, far more than steel (34%) and plastic (9%).Statistic: For every 1 ton of aluminium recycled, 4 tonnes of bauxite mining can be reduced, saving 14,000 kWh of electricity (equivalent to 4 years of electricity per household).Low-carbon production: Driven by clean energyThe hydroelectric aluminium process (electrolysis using renewable energy) reduces the carbon footprint to 4 kg CO₂/kg aluminium (16 kg for conventional thermal aluminium).Example: Hydro's low-carbon aluminum brand "Hydro CIRCAL", with a carbon footprint of only 2.3kg CO₂/kg, is supplied to Apple, BMW and other companies.Lightweight emission reduction: carbon reduction of the whole industry chainThe weight of aluminum coils for automobiles is reduced by 10%, and the whole life cycle is reduced by 8%; The aluminum curtain wall of the building reduces the energy consumption of air conditioning by 20%. International Application Atlas: How Does Aluminum Coil Drive the Global Green Revolution?1. Packaging industry: the benchmark for zero-waste closed-loopBeverage Can Revolution:Ball Corporation of the United States pioneered the world's first "aluminum cans to aluminum cans" recycling system, achieving 100% recycled aluminum cans by 2025 and reducing carbon emissions by 70%.Japan's Otsuka Pharmaceutical used recycled aluminum foil to package electrolyte drinks, with a recycling rate of over 98%, becoming the designated sustainable packaging for the Olympic Games.Food & Pharmaceutical:The European Union mandates that recycled aluminum account for ≥50% of the pharmaceutical aluminum-plastic blister, and the German Bayer Group took the lead in meeting the standard, reducing carbon emissions by 20,000 tons per year.2. Transportation: Electrification and lightweight twin enginesElectric vehicle:Tesla's Model 3 body is made of 6000 series recycled aluminum sheets, which reduces the weight of a single vehicle by 30% and reduces carbon emissions per kilometer by 65% compared to steel bodies.The Northvolt battery plant in Sweden uses aluminum coils to make battery housings, using 100% hydroelectric aluminum, reducing the carbon footprint of a single GWh battery by 40%.Aviation & Marine:Airbus A320 wing skin uses 2050 aluminum-lithium alloy, which reduces weight by 15% and improves fuel efficiency by 12%;The Norwegian hydrogen ferry "MF Hydra" uses aluminum coils instead of steel, which is three times more resistant to seawater corrosion and has a life span of 30 years.3. Buildings and energy: the building blocks of zero-carbon citiesGreen Buildings:Dubai's Sustainable City adopts an aluminum photovoltaic integrated curtain wall, with an annual power generation capacity of 1.2 million kWh and a recycling rate of 95% for building materials.BREEAM certified buildings in the UK require ≥70% recycled aluminium, and Bloomberg HQ in London is 100% recycled.New Energy Infrastructure:The Qinghai photovoltaic power station of China State Power Investment Corporation uses recycled aluminum for all aluminum brackets and frames, reducing carbon emissions by 35% during the project cycle;The backsheet of First Solar thin-film cells in the United States is made of 100% recycled aluminum foil, which improves weather resistance by 20% and reduces cost by 18%. 3. Technological breakthroughs: three major jumps in the environmental performance of aluminum coilsA revolution in recycled aluminium purityThe German SORT technology achieves 99.99% accuracy in the separation of waste aluminum impurities, and the strength of recycled aluminum is comparable to that of primary aluminum (such as Alcoa's EcoLum™).Low-carbon electrolysis technologyCanada's ELYSIS company has developed a zero-carbon electrolysis process (replacing carbon electrodes with inert anodes), which will reduce carbon emissions to zero, and Rio Tinto plans to mass produce in 2030.Coating & Composite InnovationArkema, France, has developed a water-based eco-friendly coating that reduces VOC emissions from aluminum coils by 90% for the surface treatment of IKEA furniture. 4. Challenges and Future: From "Green Materials" to "Green Chain"Industry pain pointsfragmentation of the aluminium scrap recycling system (80% in Europe vs 50% global average);The cost of green electricity is high (the price of hydropower aluminum is 15% higher than that of thermal power aluminum).Future TrendsDigital recycling network: Amazon launched "reverse logistics of aluminum packaging" to trace the whole life cycle of aluminum cans through blockchain;Policy increase: The EU carbon tariff (CBAM) will include the carbon footprint of aluminum coils in the accounting, forcing the supply chain to decarbonize;Cross-border integration: aluminum coil-hydrogen energy combination (e.g., hydrogen storage tanks), aluminum biodegradable coating (e.g., compostable aluminum film). Conclusion: Aluminum coil - the "silent cornerstone" of green industrial civilizationWhen the world is running for the goal of carbon neutrality, aluminum coils quietly reconstruct the underlying logic of industrial civilization with the most simple "recyclable" attributes. It's not just a material, it's a belief in a circular economy – from cans to skyscrapers, cars to batteries, every recycling is a gentle commitment to the planet.Is your business ready to join the green revolution?Contact us to customize low-carbon aluminum coil solutions, and use the infinite cycle of "aluminum" to open a new chapter of sustainable growth!

When it comes to pipe insulation, selecting the right aluminum alloy is crucial. 1060, 3003, and 3104 aluminum alloys are widely used in this field, each with its own unique properties and advantages. This article aims to provide a comprehensive comparison of these three alloys to help you make an informed decision for your pipe insulation projects.                                 Aluminium for pipe insulation Alloy 3104/3003/1060 Thickness(mm) 0.3-1.0 1. Chemical Composition and Purity ​ 1060 Aluminum Alloy​ The 1060 aluminum alloy is renowned for its high purity, with an aluminum content of 99.6%. This high purity contributes to its excellent corrosion resistance, making it a suitable choice for pipe insulation in environments with moderate levels of moisture and chemical exposure.​ 3003 Aluminum Alloy​ 3003 aluminum alloy contains manganese as the primary alloying element, typically around 1.2% manganese. This addition enhances its strength compared to 1060, while still maintaining good corrosion resistance. The alloy strikes a balance between cost - effectiveness and performance, making it popular in various pipe insulation applications.​ 3104 Aluminum Alloy​ 3104 aluminum alloy is a high - strength alloy. It contains a combination of manganese and other elements, providing enhanced mechanical properties. The alloy’s complex chemical composition enables it to withstand more demanding conditions, such as high - stress environments and repeated thermal cycling. 2. Mechanical Properties​ Strength and Hardness​ 1060 aluminum alloy has relatively low strength and hardness. This makes it easy to form into various shapes, such as aluminum coils for pipe insulation. However, it may not be suitable for applications where high mechanical strength is required. ​ 3003 aluminum alloy offers improved strength and hardness compared to 1060. It can better withstand external forces, such as impacts during installation or handling. This makes it a more robust option for pipe insulation in areas with potential mechanical stress. ​ 3104 aluminum alloy is significantly stronger and harder than both 1060 and 3003. It can endure heavy loads and repeated bending, making it ideal for large - scale industrial pipe insulation projects where durability is crucial.​ Ductility and Formability​ 1060 aluminum alloy exhibits excellent ductility and formability. It can be easily bent, rolled, and shaped to fit different pipe sizes and configurations. This property simplifies the installation process, reducing labor costs. ​ 3003 aluminum alloy also has good formability, although slightly less than 1060. It can still be fabricated into a variety of insulation components, such as sheets and tubes, with relative ease. ​ 3104 aluminum alloy, despite its high strength, maintains reasonable ductility. This allows it to be formed into complex shapes while retaining its mechanical integrity, making it suitable for custom - designed pipe insulation systems. Aluminium for pipe insulation Strength comparison 3104＞3003＞1060 Corrosion Resistance Comparison 3104＞3003＞1060 Price comparisons 3104＞3003＞1060 4. Cost - Effectiveness​ 1060 aluminum alloy is generally the most cost - effective among the three. Its simple production process and high availability contribute to its lower cost. This makes it an attractive option for projects with budget constraints. ​ 3003 aluminum alloy is slightly more expensive than 1060 due to its enhanced mechanical properties. However, its cost - effectiveness lies in its durability and performance, making it a popular choice for medium - to - high - end pipe insulation projects. ​ 3104 aluminum alloy, with its superior strength and corrosion resistance, is relatively more expensive. However, in applications where long - term performance and reliability are critical, the higher initial investment may be offset by reduced maintenance and replacement costs over time. 5. Application Scenarios In recap, 1060 pure aluminum, with its soft texture, serves as an optimal choice for indoor pipe insulation projects or in regions blessed with favorable climatic conditions. Its cost - effectiveness and excellent formability make it a go - to option where high mechanical strength isn't a strict requirement.​On the other hand, 3003 and 3104 aluminum alloys outshine 1060 in terms of strength and corrosion resistance. This makes them the top picks for pipe insulation in challenging terrains like deserts and grasslands, where harsh weather conditions such as sandstorms, heavy rainfall, and extreme temperature fluctuations are common.​ ​ Should you wish to gain deeper insights into our insulation aluminum coils, please feel free to get in touch. You can reach us via phone at 0086 13585404615(WhatsApp)Cindy or drop an email to cindy@cnchangsong.com. Our dedicated team is committed to offering professional advice and customized solutions, ready to address any queries you may have.

Navigating the U.S. Aluminum and Steel Tariffs: Strategies for Chinese Exporters in 2025 I. Evolution and Current Status of U.S. Tariff Policies on Aluminum and Steel The U.S. government’s tariff measures on Chinese aluminum and steel products have undergone significant escalation since 2018. Initially targeting specific items under Section 301, the scope expanded incrementally to cover nearly all aluminum processed goods by 2024. The latest round, effective January 2025, raised tariffs on semiconductors to 50%, electric vehicles to 100%, and steel/aluminum to 25% (Table 1). These policies aim to "protect national security" and address perceived "unfair trade practices," including subsidies and overcapacity. Product Category 2018 Tariff Rate 2025 Tariff Rate Key Changes Aluminum Products 0–7.5% 25% Covers 33 subcategories (e.g., sheets, foil) Steel Products 0–7.5% 25% Combined with Section 232 tariffs Semiconductors 25% 50% Effective January 2025 Electric Vehicles 25% 100% Targeting Chinese EV manufacturers   China’s Ministry of Commerce has repeatedly criticized these tariffs as unilateral and protectionist, emphasizing their negative impact on global supply chains. Despite public opposition during U.S. tariff reviews, the Biden administration has doubled down on its strategy, aligning with domestic political priorities in key industrial states like Ohio and Pennsylvania. II. Direct and Indirect Impacts on Chinese Aluminum and Steel Exports Direct Effects Export Volume Decline: In 2023, Chinese aluminum exports affected by Section 301 tariffs exceeded 320,000 metric tons, including 88,000 tons of aluminum doors/windows and 6,100 tons of pipe fittings (Shandong Commerce Department, 2024). With the 25% tariff hike, these products become price-competitive in the U.S. market. Market Diversion: Chinese exporters have shifted focus to regions like Southeast Asia and the Middle East, where demand for aluminum construction materials is growing. However, this diversification faces challenges due to regional trade barriers and logistical costs. Indirect Effects Global Trade Disruptions: The U.S.-EU trade war in 2025, triggered by reciprocal steel/aluminum tariffs, has created uncertainty across global markets. The EU’s retaliatory tariffs on $26 billion of U.S. goods (e.g., whiskey, motorcycles) further complicate trade routes for Chinese intermediaries. Mexico as a Transit Hub: To bypass U.S. tariffs, some Chinese manufacturers have rerouted products through Mexico. However, new U.S.-Mexico rules now require steel/aluminum imports to be domestically smelted or cast in North America, effectively closing this loophole (White House, 2024). III. Proactive Strategies for Chinese Aluminum and Steel Exporters 1. Market Diversification and Regional Partnerships Chinese firms are exploring opportunities in markets with growing infrastructure demands, such as India and Africa. For example, China’s Aluminum Corporation of China (Chinalco) has expanded investments in African bauxite mines to secure raw materials and reduce reliance on U.S. markets. 2. Value-Added Product Development By shifting from low-end aluminum sheets to high-value products like aerospace-grade alloys, exporters can mitigate tariff impacts. Data shows that China’s exports of high-purity aluminum increased by 18% year-over-year in 2024, driven by rising demand for electric vehicle batteries. 3. Localization and Joint Ventures Companies like BYD have established overseas production bases to comply with regional content rules. In 2024, BYD invested $1 billion in a Mexican EV plant, ensuring aluminum components meet U.S. origin requirements. 4. Policy Advocacy and Legal Challenges China has appealed U.S. tariff decisions at the WTO, citing violations of international trade rules. While the WTO ruled against U.S. Section 232 tariffs in 2022, enforcement remains delayed, highlighting the need for multilateral diplomatic efforts. IV. Future Outlook and Long-Term Recommendations Short-Term Challenges U.S. domestic steel/aluminum production remains insufficient to meet demand, leading to potential shortages and price hikes for downstream industries like construction and automotive manufacturing (Financial Times, 2025). The U.S. inflation rate, driven partially by tariff-induced costs, is projected to remain above 4% in 2025, further dampening consumer purchasing power. Long-Term Opportunities China’s reduction of import tariffs on recycled aluminum and copper (effective January 2025) signals a shift toward domestic resource efficiency. This move could lower production costs for Chinese manufacturers and enhance their global competitiveness. The Belt and Road Initiative continues to foster infrastructure projects in emerging markets, creating alternative revenue streams for aluminum exporters. Recommendations Strengthen R&D: Invest in green aluminum technologies to align with global decarbonization trends. Leverage Free Trade Agreements: Utilize frameworks like RCEP to reduce export costs in ASEAN markets. Enhance Supply Chain Transparency: Adopt blockchain-based tracking systems to verify product origin and comply with U.S. rules. V.Conclusion The U.S. aluminum and steel tariffs present significant challenges for Chinese exporters, but proactive strategies can mitigate risks. By diversifying markets, innovating products, and engaging in regional partnerships, companies can navigate the evolving trade landscape. As global supply chains continue to restructure, adaptability and forward-thinking investments will be key to sustained success.   Aluminum Coil Offered By Changzhou Dingang Metal Material Co.,Ltd Contact Robert To Enquiry With Your Needs.   Robert Tang (Sales) robert@cnchangsong.com 0086 159 6120 6328 (whatsapp & wechat)    

Anti - Scratch Color Coated Aluminum Coils for Outdoor Sunshades In outdoor sunshade applications, our anti - scratch color coated aluminum coils stand out as an ideal choice. They are meticulously engineered to meet the unique demands of sunshades, ensuring long - lasting performance and aesthetic appeal. Exceptional Anti - Scratch Performance Our anti - scratch color coated aluminum coils are cured using advanced particle anti - scratch coating technology. This makes them over 5 times more scratch - resistant compared to ordinary color - coated aluminum coils. They can firmly resist the scratching of sharp objects, maintaining their smooth and flawless surface even in high - traffic or rough - handling outdoor environments. For example, in busy commercial areas or households with pets, the sunshades made from these coils can withstand daily wear and tear without getting scratched easily. Wide Range of Alloy Options We offer a diverse selection of alloy options, including 1050, 1060, 1100, 3003, 3105,etc. Each alloy has its own unique properties. For instance, the 3003 alloy is known for its good formability and moderate strength, which is suitable for sunshades that require complex shapes. The 5052 alloy, on the other hand, offers excellent corrosion resistance, making it a great choice for sunshades in coastal or humid areas. Customizable Specifications Thickness: The coils are available in a thickness range of 0.2 - 1.6 mm. A thinner coil, like 0.2 mm, might be used for sunshades where lightweight construction is a priority, such as in portable or small - scale sunshades. Thicker options, around 1.6 mm, are more suitable for large - scale, heavy - duty sunshades that need to withstand strong winds and other harsh weather conditions. Width: The width of the coils can range from 600 - 1850 mm. This wide range of widths allows for flexibility in manufacturing sunshades of different sizes. For example, wider coils can be used to create large, continuous sunshades for commercial buildings or public spaces, while narrower coils are perfect for smaller, residential sunshades. Length: We can produce coils according to customer requirements. Whether it's a short length for a small - scale project or a long length for a large - scale installation, we can meet your specific needs. Rich Color Palette There are dozens of colors available for the anti - scratch color coated aluminum coils, including anti - scratch white, anti - scratch black, scratch - resistant beige, scratch - resistant red brown, anti - scratch gray silver, anti - scratch champagne silver, etc. Moreover, we can also customize colors according to the specific color samples provided by customers. This means that you can match the sunshades to the existing color scheme of your outdoor space, whether it's a modern - style patio or a traditional - looking garden. Superior Weather Resistance Outdoor sunshades are constantly exposed to various weather elements. Our anti - scratch color coated aluminum coils are designed to have excellent weather resistance. They can endure long - term sunlight exposure without fading, resist rain and moisture without corrosion, and withstand temperature fluctuations without warping. In tropical regions with intense sunlight and frequent rain, or in areas with extreme temperature changes, these coils ensure that the sunshades maintain their integrity and functionality for years. Versatile Applications These anti - scratch color coated aluminum coils are not only suitable for traditional outdoor sunshades in residential gardens and patios but also for commercial sunshades in cafes, restaurants, and shopping malls. They can be used to create retractable sunshades, fixed - frame sunshades, or even sunshades integrated into building facades. Their versatility makes them a popular choice for architects, designers, and contractors looking for high - quality materials for outdoor shading solutions. In conclusion, our anti - scratch color coated aluminum coils offer a combination of durability, aesthetics, and customization options that are perfect for outdoor sunshade applications. With their outstanding performance and wide range of features, they are sure to enhance the functionality and visual appeal of any outdoor space. If you're in the market for anti - scratch aluminum coils, we're here to assist! Reach out to us using the following channels:Phone: 0086 13585404615 (WhatsApp)CindyEmail: cindy@cnchangsong.com Our dedicated team will offer professional advice, competitive quotations, and customized solutions to meet your unique requirements. We look forward to serving you!

On the stage of industrial manufacturing, aluminum coil is like a "hidden champion" It may not be the protagonist in the spotlight, but it silently supports the birth from skyscrapers to smartphones with its lightweight, flexible and durable characteristics. Whether it is automobiles, construction, home appliances, aerospace, new energy, aluminum coils are everywhere. Why can it become the "all-round supporting role" of modern industry? Let's uncover its scientific code and application charm. 1.The "superpower" of aluminum coils: why is it irreplaceable? Light as a feather, strong as steelThe density of aluminum is only 1/3 that of steel, but it can be alloyed (e.g. with magnesium and silicon) to achieve high strength. Aluminum coils can be used to replace steel in a car, which can reduce weight by 30% and increase battery life by more than 10%.The integrated die-cast body of the Tesla Model Y and the fuselage skin of the Airbus A350 both rely on the high-strength and lightweight characteristics of aluminum coils.Versatile shapes, shape as you likeAluminium coils can be cold-rolled to 0.005 mm (10 times thinner than a human hair) and can also be extended into complex curved surfaces. From the slim cans of cans to the wavy curtain walls of building facades, the "plasticity" of aluminum coils allows designers to boldly innovate.Corrosion-resistant, anti-aging, long lifeThe surface is naturally oxidized to form a protective film, which can resist moisture, acid and alkali environments without additional plating.The aluminium façade of Dubai's Burj Khalifa has been eroded by desert heat and sea breeze for 30 years.Green genes, recyclingAluminium is 100% recyclable and consumes only 5% of the energy of primary aluminum. 75% of the world's aluminium products are still recycled, which can be called "sustainable materials". 2,The "invisible battlefield" of aluminum coils: in which industries are they hidden? Transportation: The engine of the lightweight revolutionElectric vehicles: The battery pack shell and motor heat sink rely on the lightweight and thermal conductivity of aluminum coils to help improve battery life.High-speed rail and aircraft: for every 1 kilogram of weight reduction, the aircraft saves 3 tons of fuel per year, and aluminum coil is the "weight reduction expert" of aerospace.Buildings and Energy: The Skeleton of the City of the FuturePhotovoltaic and energy storage: Solar panel backsheets and energy storage battery shells need to be weather-resistant and conductive of aluminum coils.Green building: Aluminum roll curtain wall reflects 80% of sunlight and reduces air conditioning energy consumption, which is the "standard" of LEED-certified buildings.Consumer Electronics: The "Invisible Armor" of Technology ProductsThe middle frame of mobile phones and laptop shells are made of ultra-thin aluminum coils to create a light texture;The heat sink of the 5G base station relies on aluminum coils to quickly conduct heat to ensure signal stability.Packaging & Life: Safety Guards on the Tip of the TongueFood-grade aluminum coils (such as cans, pharmaceutical foils) are non-toxic and tasteless, isolate light and oxygen, and increase freshness by 50%. 3.Economy and sustainability: a "win-win" for industrial manufacturing Cost-effective Material Aluminum coil advantages steel 60% lighter, no rust, low energy consumption (cold rolled vs hot rolled) plastics High temperature resistance (200°C), recyclable, high strength (automotive structural parts cannot be replaced by plastics) copper 50% lower cost and 80% lighter (aluminum is used to replace copper cables in the power industry with the same conductive demand) Composites Easy to process, weldable (carbon fiber requires special technology), low cost (the price of aviation aluminum is about 1/10 of carbon fiber) Low processing cost: The cold rolling and stamping processes are mature and suitable for large-scale production (for example, the cost of automobile stamping parts is 40% lower than that of magnesium alloy).Long life cycle: corrosion resistance reduces maintenance costs (the maintenance cycle of building aluminum curtain wall is 2 times longer than steel).Green CycleThe recovery rate > 95%: the energy consumption of scrap aluminum remelting is only 5% of that of primary aluminum (12 tons of CO₂ for every 1 ton of aluminum recycled).Policy-driven: The EU's Circular Economy Action Plan mandates the use of 30% recycled aluminium in the automotive industry. 4.Contrasting the "dimensionality reduction attack" of competing materials 5. Customer value: Why choose aluminum coils? Cost reduction and efficiency increase: lightweight reduces transportation energy consumption, long life and maintenance costs.Technology upgrading: support the research and development of cutting-edge fields such as new energy and intelligent equipment.Environmental compliance: Meet global carbon tariffs and ESG standards to enhance brand image.Design freedom: From micron-sized precision parts to giant structures, push the boundaries of manufacturing. 6.Future Trends: From "Supporting Role" to "Core Enabler" New Energy Revolution:The demand for solid-state battery aluminum foil current collector and hydrogen energy storage and transportation equipment exploded.Intelligent Manufacturing:Aluminum coils are combined with 3D printing (e.g. SLM selective laser melting technology) to create complex lightweight parts.Deepening the circular economy:Corporate closed-loop recycling systems, such as the Novelis Aluminum Recycling Plant, to drive the goal of "zero aluminum scrap." The "omnipotence" of aluminum coil stems from its perfect balance between performance and cost, as well as the precise fit of human sustainable development needs. It is not only the "glue" of industrial manufacturing, but also the "invisible engine" to promote the green transformation - from daily consumer goods to space exploration, aluminum coils have always supported the progress of human civilization behind the scenes.If you need to discuss the application scenarios or regional market data of specific alloy grades, welcome to further exchanges!

How pre-painted technology makes aluminium a ‘universal canvas’ in the design world In the field of architectural and industrial design, the **expressive** appearance of materials and the **integration of functions** are often the key to the success of a product. In the field of architectural and industrial design, the expressive appearance and functional integration of materials are often the key to the success or failure of a product. With its simulated texture technology and multifunctional coatings, colour coated aluminium is transforming itself from a single metal material into a ‘customisable art carrier’. Whether it is the warm texture of natural wood grain, the luxurious atmosphere of marble grain, or the industrial aesthetics of brushed metal, coloured aluminium can be perfectly presented through the pre-coating process, providing designers with unlimited creative space.   Wood grain coloured aluminium: reproduce the natural ‘ecological code’ Technical analysis Printing process: through high-precision roller coating or gravure printing, the wood grain pattern (such as oak, walnut, bamboo) is reproduced on the surface of aluminium rolls, and the error is controlled within 0.01mm.   Coating overlay: transparent protective coating (e.g. polyurethane) is covered on the wood grain layer to enhance the scratch resistance and UV resistance, and the colour will not fade after 10 years of outdoor use.   Application Scenarios Building Decoration: Oasia Hotel in Singapore uses vertical greening and woodgrain coloured aluminium on the exterior wall to create the concept of ‘Forest Hotel’.   Furniture manufacturing: wood grain coloured aluminium is used for cabinets and door panels, replacing solid wood, which is both environmentally friendly and durable.   Packaging design: wood grain aluminium foil packaging for high-end tea cans and wine boxes to enhance the added value of products.   Comparison of Advantages Characteristics Solid wood Wood grain coloured aluminium Corrosion resistance Easy to be deformed by humidity Waterproof, insect resistant Processing complexity Needs to be spliced One-piece moulding Environmental protection Cutting down trees Recyclable aluminium substrate Stone Coloured Aluminium: Luxurious Industrial Recycling" Technical Breakthrough Digital Inkjet Technology: Through computer-controlled nozzles, ceramic pigments are sprayed on the surface of aluminium coils to form natural marble and granite textures.   3D relief effect: Combining mechanical embossing and coating process, it simulates the concave and convex texture of stone, which is highly unified between touch and vision. Typical cases Dubai Mall: stone pattern coloured aluminium curtain wall imitates Carrara white marble, the cost is only 1/3 of natural stone. Sanitary products: stone pattern coloured aluminium is used for shower partition and washbasin, which is anti-mould and easy to clean. Functional upgrades Fire protection performance: the coating flame retardant grade reaches B1, suitable for shopping malls, hospitals and other public places.   Anti-bacterial treatment: silver ion coating is added to inhibit the breeding of Escherichia coli and Staphylococcus aureus.   Brushed metal aluminium: the ‘minimalist expression’ of industrial aesthetics. Process Principle Mechanical brushing: one-way friction on the surface of aluminium coils through high-speed abrasive belts to form a delicate and uniform hairline pattern.   Chemical etching: Using acidic solution to etch the aluminium surface, and controlling the reaction time to form different thicknesses of brushed effect. Application Areas Electronic Products: Apple MacBook case is made of brushed coloured aluminium in deep sky grey, which is delicate to the touch and fingerprint-proof.   Kitchen appliances: hoods and ovens made of brushed coloured aluminium are grease-resistant and easy to clean.   High-end architecture: the brushed aluminium sunshade system in Tokyo's Ginza commercial centre combines sunshade with the art of light and shadow.   Selection Guide Texture Type Cost Weather Resistance (Years) Applicable Scene Wood Grain medium 10-15 Indoor and Outdoor Decoration, Furniture Stone grain high 15-20 High-end curtain wall, sanitary ware Brushed low 8-12 Electronics, Kitchenware Selection Advice: - Highly corrosive outdoor environments: Priority is given to Fluorocarbon coated stone grain coloured aluminium. - Pursuing cost-effective: polyester coated wood grain coloured aluminium is more economical. - Industrial style design: brushed coloured aluminium with matte coating. When metal has the magic power of ‘72 changes’ The texture revolution of coloured aluminium not only reshapes the visual language of the material, but also pushes the boundary of innovation in the design industry. From ecological wood grain to technological wire drawing, from luxurious stone grain to artistic gradation, colour aluminium makes cold metal both natural beauty and intelligent function in the form of ‘universal canvas’. In the era of personalisation and sustainable development, colourful aluminium is using the magic of ‘72 changes’ to write a new chapter of material science. Next time, when you touch a wood grain aluminium door, see a stone curtain wall, or hold a brushed aluminium laptop in your hand, please remember: this is not a replica of natural materials, but a perfect collision of industrial science and technology with artistic inspiration.

Brushed aluminium coils As an important metal material that was developed earlier, brushed aluminum coils are currently widely used in people's daily lives and various fields of industrial production. Aluminum products have application advantages such as light weight and strong plasticity. Aluminum products have become It is an indispensable component of our daily life, so how should we judge the quality of aluminum products when choosing them and what factors should we pay attention to when using them?  To judge the quality of aluminum products, you can mainly observe the thickness of the oxide film. If the oxide film is If the thickness does not meet the specification, the surface of the aluminum product will easily rust and be corroded. If aluminum products are doped with many other chemical components, the chemical composition of the aluminum products will be unqualified and seriously endanger the safety engineering. How to choose High - Quality Brushed Aluminum Coil   Look at the thickness: According to national standards, the thickness of exterior wall panels should be 4 mm, and the thickness of brushed aluminum panels should be 0.5 mm; the thickness of interior wall panels should be 3 mm, and the thickness of brushed aluminum panels should be 0.2 mm; the aluminum panels of exterior wall panels are significantly thicker than those of interior walls. The aluminum plate of the board is hard. To check the adhesion of the paint, you can use a sharp blade to mark some 1*1 mm squares on the paint surface, then stick the tape firmly on the squares and then quickly tear off the paint film. There should be no peeling off. Smell: Peel off the aluminum plate and there should be no pungent smell of organic solvents. Observe its shape: The size of the brushed aluminum plate should be standardized and neat, the thickness should be uniform, the surface should be smooth, and the plate shape should be straight. The product cannot stand when the board is placed on the ground. Lift one end of the board and weigh it. It should not feel too soft. Peel off the protective film on the surface of the product and observe that the paint surface should be clean and tidy, with no surface defects such as color difference, spots, scars, uneven gloss, and missing paint. Price comparison: Since the prices of the main raw materials for brushed aluminum plates are very high, plus equipment depreciation, labor management costs and production profits, the price has a certain bottom line. At present, the production profits of aluminum plates have almost dropped to a very low level, which is obviously excessive. Low price must be a salient feature of fake and shoddy products. Observation after boiling: Boil the sample for 2 hours, and observe after cooling. There should be no glue opening between the brushed aluminum plate and the plastic. According to the method introduced above, the paint film should be free of glue peeling and brittleness. Observe whether there is brittle fracture. Cut out a piece of aluminum veneer and bend it hard. The brushed aluminum plate should not have obvious brittle fracture. With its timeless elegance, exceptional durability, and versatile appeal, brushed aluminum sheets continue to redefine modern design and industrial innovation. Whether for architectural masterpieces, consumer electronics, or premium interiors, our precision-engineered brushed finishes offer a perfect blend of aesthetics and performance. Elevate your projects with the enduring sophistication of brushed aluminum—where style meets substance. CHANGZHOU DINGANG METAL MATERIAL CO.,LTD Add: 12F,Bldg2,ZhiXin Biz Plaza,No.25 North Street,Zhonglou District,Changzhou,Jiangsu,China Web: www.prepaintedaluminium.com / www.cnchangsong.com       Email:chen@cnchangsong.com Tel: +0086 15212809398  (Whatsapp / Wechat)

What's the Impact of U.S. Aluminum and Steel Tariff Increases in 2025?   In 2025, the U.S. will raise tariffs on steel and aluminum imports by 25% (the original aluminum tariff will rise from 10% to 25%), eliminate allied exemptions and extend to steel and aluminum derivatives, which will have a multi-dimensional impact on the global economy and the U.S. itself:   I. U.S. Domestic Impact: Short-term Industrial Pain and Long-term Economic Risks Soaring costs in downstream industries Automotive and aerospace: the cost of a single car has increased by more than US$1,000, and the budgets of military projects such as the F-35 fighter jet have been overspent; aluminum accounts for 80% of the weight of an aircraft's fuselage, and high-purity aluminum relies on imports from Canada, which has pushed up the cost of manufacturing and maintenance. Consumer Goods and SMEs: Price increases for aluminum cans (Coca-Cola), appliances, medical devices, caskets, fishing gear, etc.; small craft breweries are on the verge of losing money due to the rising cost of aluminum cans. Energy & Infrastructure: Shale oil companies are losing competitiveness in energy exports due to surging import costs of specialty steel; rising costs of raw materials (rebar, aluminum) in the construction industry are driving up residential and commercial construction costs. Inflationary and Employment Pressures Inflationary pressures intensified as the U.S. CPI rose 2.8% year-over-year in February, involving more than $150 billion in imports (289 categories). Short-term job creation in the steel industry (e.g., 14,000 in 2018), but more job losses in downstream manufacturing (automotive, machinery, etc.) (75,000 in 2018), with a negative net employment effect. The Peterson Institute for International Economics calculates that each steel job saved costs taxpayers $900,000 per year. Industry competitiveness and supply chain woes Insufficient local steel and aluminum capacity (U.S. aluminum production is only 1% of global production), unchanged dependence on imports, and downstream companies forced to raise prices or restructure supply chains (e.g., shift to Southeast Asia), but at risk from new tariffs. High energy costs (Alcoa's electricity costs $36/MWh, far exceeding Canada's hydroelectric advantage), old technology and equipment, with some companies (e.g., Missouri aluminum plants) shutting down again due to cost pressures.     II. International response: allied countermeasures and the reconfiguration of global trade patterns Retaliatory measures by allies Canada: as the largest supplier of steel and aluminum to the U.S. (accounting for more than 25% of imports), it was hit with 50% total tariffs, announced reciprocal tariffs on $29.8 billion of U.S. goods (steel, computers, sports equipment), and suspended surcharges on some U.S. electricity exports. EU: tariffs on €26 billion of U.S. goods (alcohol, textiles, appliances) from April 1, criticizing the U.S. for “disrupting supply chains and jobs.” Other countries: Australia unsuccessfully sought exemptions; South Korea and Japan's steel exports were hit (South Korea's exports to the U.S. accounted for 9.8% of its total) and shifted to Southeast Asia for re-export; Brazilian and Mexican supply chains came under pressure, with Brazil's vice president calling the U.S. initiative “wrong and damaging to global trade.” Multilateral trading system damaged Allies accuse US unilateralism of undermining trade partnerships, with Canada's foreign minister saying “there are no winners in a trade war”. the WTO had ruled that the 2018 steel and aluminum tariffs were in violation of the law, but the US continues to escalate the measures, undermining the authority of multilateral rules. Accelerated reconstruction of the global supply chain: Canadian aluminum companies shifted to the EU leading to its oversupply, and the EU carbon border mechanism (coming into effect in 2026) further impacted the aluminum industry in high-carbon emitting countries (e.g., Brazil); companies accelerated the regionalization of their layout to reduce their reliance on the US.   Contact Us To Know More About Pre-painted Aluminum Product If You Wanna Save Money And Expolore Your Local Market. www.prepaintedaluminium.com / www.cnchangsong.com Email: robert@cnchangsong.com Phone: 0086 159 6120 6328  

Product Overview: 3000 series aluminum-coated color coil is made of aluminum-manganese alloy (such as 3003 and 3004) as the base material, and the surface is cleaned, chemically converted, and coated with PVDF or PE color coating, which has the lightweight, corrosion resistance and decorative protection function of aluminum. With a typical thickness of 0.2mm-1.5mm, a width of up to 1500mm and a roll weight of 3-10 tons, it is the preferred material for construction, packaging and industrial fields.                   1.Core Benefits & Features: Material performance advantages High Strength & Formability:The tensile strength of 3003 aluminum alloy (containing 1.2% manganese) is 145MPa, which is 30% higher than that of pure aluminum (1 series), and is suitable for deep drawing and stretching processing (such as tanks and complex structural parts).3004 aluminum alloy (containing 1.2% manganese + 1% magnesium) has higher strength (tensile strength 180MPa), which is suitable for load-bearing scenarios (such as building curtain wall skeleton).Corrosion Resistance:Aluminum-manganese alloy substrate + coating double protection, salt spray test ≥ 1000 hours (ASTM B117), suitable for high-corrosion environments such as coastal, chemical industry, etc.Lightweighting:The density is 2.73g/cm³, which is only 1/3 of steel, and the transportation and installation costs are reduced by 20%. 2. Surface treatment and functionalityCoating Diversity:PVDF coating: UV resistant, chemical resistant, color retention for more than 15 years (RAL/Pantone color optional).PE coating: economical for indoor applications (e.g. home appliance panels) with matte, pearlescent effects.Special functional coatings: antimicrobial (ISO 22196), self-cleaning (lotus leaf effect), conductive (EMI shielding).Processing Adaptability:It supports slitting, stamping, and roll forming, and is compatible with automated production lines (such as continuous roll coating process).3. Environmental protection and economy100% recyclable: The energy consumption of aluminum recycling is only 5% of that of primary aluminum, which is in line with the EU's Green Deal carbon neutrality goal.Cost advantage: 15% lower cost than 5000 series aluminum-magnesium alloy, 40% lower than stainless steel comprehensive cost. Core application areas and market value: Construction industryCurtain wall and roof: lightweight to reduce building load, coating weather resistance to extend maintenance interval;Interior decoration: Diverse colors are used for ceilings and walls to increase design flexibility.Market advantage: replace traditional steel and stainless steel, reduce the comprehensive cost by more than 30%.TransportationBody and interior: lightweight to reduce fuel consumption and help improve the battery life of new energy vehicles;Containers and carriages: corrosion resistance, prolong service life, adapt to high humidity and salt spray environments.Appliances & PackagingAppliance panels (e.g. refrigerators, air conditioners): easy-to-clean surface, anti-fingerprint coating technology;Food packaging: FDA compliant, non-toxic coating ensures safety.New energy fieldPhotovoltaic bracket: corrosion resistance is suitable for long-term outdoor exposure;Battery shell: Lightweight and conductivity are balanced, supporting efficient heat dissipation of energy storage devices. 4.Market competitive advantage analysis: Balance performance with costCompared with the 5000/6000 series: the 3000 series has a lower cost and is suitable for large-scale applications;Compared with steel: weight reduction of more than 50%, processing energy consumption reduced by 20%-30%.Environmental complianceRecyclability: Aluminium has a recycling rate of more than 95%, reducing the carbon footprint;Green coating: Chromium-free pretreatment technologies (e.g. zirconium, titanium) comply with EU RoHS/REACH regulations.Customization capabilitiesSupport flexible customization of thickness (0.2-3.0mm), width (800-1600mm) and coating type;Quickly respond to the individual needs of construction, automotive and other industries. 5.Sustainable development values: Energy saving and carbon reduction contributions The energy consumption of aluminum coil production is 60% lower than that of steel, and the energy consumption of recycling is only 5% of that of primary aluminum;Lightweight applications indirectly reduce carbon emissions in transportation and construction.Long life cycle economicsThe service life can be up to 30 years (PVDF coating) with very low maintenance costs;The recycling residual value is high, and the price of scrap aluminum is stable at 80%-90% of primary aluminum. 6.Future Trends and Challenges:The direction of technological innovationUltra-thin coating technology: nano-coating improves scratch resistance;Smart surfaces: photocatalytic self-cleaning coatings, heat-reflective coatings (to reduce building energy consumption).Market challengesfluctuations in raw material prices (aluminium ingots are affected by energy and international trade);Alternative material competition (e.g., magnesium alloy, carbon fiber penetration in the high-end field). With its lightweight, corrosion resistance, color diversification and environmental protection and recyclability, 3000 series aluminum color coating coil has become the preferred material in the fields of construction, transportation, new energy and other fields. With the advancement of green manufacturing and carbon neutrality goals, its technological upgrading and circular economy value will be further released, and it will continue to occupy the core position of the high-end industrial materials market.   If you have needs on the aluminum coil or sheet product,please contact us for more discussing. Changzhou Dingang Metal Material Co.,Ltd www.cnchangsong.com www.prepaintedaluminium.com Email:gavin@cnchangsong.com Phone: 0086 13961220663 (whatsapp & wechat)

Dingang Color coated aluminium coils are an ‘all-rounder’ in the field of architecture. It is rich in colour, gloss and texture, and can create a highly individual and aesthetic building appearance. Its surface coating is corrosion-resistant, UV-resistant, and has a long service life in harsh climates. The material is light but strong, reducing the load on the building structure and guaranteeing the stability of the components at the same time. It has excellent heat and fire insulation performance, which is both energy-saving and safe. Processing plasticity, can be made into a variety of components, easy to install, significantly shorten the construction period, and recyclable, in line with the concept of environmental protection, for the building to inject. BUILDING CONSTRUCTION APPLICATIONS Curtain system application Colour coated aluminium coils produced by Dingang can be made into curtain wall panels of various shapes and sizes, such as rectangular, triangular, curved, etc., through cutting, bending, welding and other processes, to achieve the architect's unique design concepts and create a unique appearance for the building. Celling system application Typical Specifications As Below: Alloy: 3003/3004 Temper: H24, H26 Thickness: 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1.0mm.                                                           Coating thickness:25-28micro Width range: 200mm-1300mm Colour: mainly white Protective film: transparent, can be customised according to customer's logo protective film      Roofing System Application Colour coated aluminium coil is favoured in various large-span metal roof structures and corrugated insulation systems because of its aesthetics, light weight, easy processing, durability and recyclability. Typical Specifications As Below: Alloy: 3003/3105/5005 Temper: H16/H24/H26 Width: 500-1600mm Thickness: 0.2-1.6mm Recommended Colors Or Patterns: Ral 100l Beige,Ral 5015 Sky Blue,Ral 9016Traffic White,Wood Grain,Marbling,Camouflage Gutter System Application Typical Specifications As Below: Alloy: 3105/3003 Temper: H24 Thickness:0.6-1.0mm Width: 250-500mm which are strong enough to be easily machined. Aluminium coils are roll coated with polyester (PET) paint on both sides, with a thickness of 25-28um for double coating and 15-18um for single coating, resulting in a smooth, even and durable surface. Rolling Door & Blind Application Dingang’s colour coated aluminum sheets feature excellent corrosion resistance, ensuring long - term durability even when exposed to harsh outdoor conditions. They are also light - weight yet strong, which makes installation easy for rolling shutter doors and blinds. The rich color options not only add aesthetic appeal but also blend well with various architectural styles. Typical Specifications As Below: Alloy: 3105/3005/3003 Temper: H26 Thickness: 0.2-1.0mm Width:138mm or customized Back Coating:  Epoxy Colours: scratch-resistant white, scratch-resistant grey-silver etc. Typical Specifications As Below: Alloy: 3005 Temper: H47 uncoated thickness:0.4mm paintcoated thickness:0.43mm Width:94mm Color:RAL – 1015, 9003, 9006, 9007, 7016, 8014, 8017, 9005.