What's the difference of Hot Rolled Aluminum and Cast-rolled Aluminum?
When discussing aluminum sheet and foil products, two commonly asked questions center on the differences between hot-rolled and cast-rolled materials, as well as the distinctions among various aluminum alloy series. Among aluminum alloys, Series 1, 8, and 3 are particularly noteworthy.
While some aluminum sheet or foil products from other series are exclusively produced via hot-rolling without the cast-rolling option, grasping the characteristics of these three series remains essential. This article aims to thoroughly explore these two dimensions, offering you comprehensive insights into the realm of aluminum products.
| Processing |
Alloy
|
|
Alloys for the hot rolling process |
1xxx,3xxx,4xxx,5xxx,6xxx,7xxx,8xxx |
|
Alloys for the cold rolling process |
1xxx, 3xxx, 8xxx (Excluding alloy containing magnesium) |
|
Product Type
|
Advantages | Disadvantages |
| Hot Rolled Aluminum | Good performance, uniform internal structure, good deep drawing, drawing, oxidation and bending effects | Complicated processing, high price |
| Cast-rolled Aluminum |
Affordable price high strength |
Poor stability of product performance |
In terms of mechanical properties, under the same alloy and Temper conditions, cast - rolled materials generally have a higher compressive strength compared to hot - rolled materials. This is mainly due to the unique microstructure formed during the continuous casting and rolling process, which gives the cast - rolled products better resistance to compressive forces. However, when it comes to stability and elongation, hot - rolled materials have the advantage. The high - temperature rolling process of hot - rolled materials allows for a more uniform distribution of internal stress and a more refined grain structure, resulting in better stability during use and higher elongation values when subjected to tensile forces.
Moreover, in terms of strength, cast - rolled materials tend to have a slightly higher strength value than hot - rolled materials under the same alloy and Temper conditions. But when it comes to deep - drawing height and tensile effect, hot - rolled materials outperform cast - rolled materials. The high - temperature plastic deformation during hot - rolling makes the material more suitable for forming complex shapes through deep - drawing, and it also shows better performance in tensile tests, such as achieving larger elongation before fracture. These differences in mechanical properties should be carefully considered when choosing between cast - rolled and hot - rolled materials for specific applications, like cake tray production.
Many customers may not know much about the products when making their first purchase. May be unsure whether to choose cast-rolled materials or hot-rolled materials. But don't worry. As long as you tell our customer service staff your requirements in detail, we will arrange a professional business manager for you. The manager will recommend the products that best suit your needs based on your requirements.
