ASTM 792A Galvalume Aluzinc Coated Steel For Construction Building

Place of Origin China
Brand Name Dingang-GL
Certification ITS SGS BV
Model Number SPCC,SPCD,SPCE,DX51/52/53/54D+Z,Q195/215/235 And Etc
Minimum Order Quantity 25Tons
Price USD1020 PER Metric Ton
Packaging Details Standard Export Seaworthy Packing Or As Per Customers’ Detailed Requests
Delivery Time 45 Days
Payment Terms L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability 300000Tons/Year
Product Details
Type Steel Sheet Standard ASTM AISI GB
Surface Treatment Chromate Passivation With Oiling Or Anti-finger Print Craftsmanship Cold Rolled
Application Ship Or Boiler Plate Special Purpose :Building And Construction
Transport Package Standard Export Seaworthy Packing Or As Per Customers’ Detailed Requests Trade Mark Dingang
Thickness 0.16-3.0mm Width 30-1500mm
Grade SGLCC SGLCD Coating Type 55%Al,43.5%Zn,1.5%Si
Coating Thickness 50-150g/sqm Surface Finish Regular Spangle
Inside Diameter 508mm Sample Available
Packing Weight(Without Pallet) 25kgs Packing Weight(With Pallet) 55kgs
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ASTM 792A Aluzinc Coated Steel

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Galvalume aluzinc galvanized steel

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Product Description

ASTM 792A Galvalume Steel plate 55%Al,43.5%Zn,1.5%Si For construction building

 

 

Product Description

Galvalume Steel (GL)

Galvalume steel is the plating coat of aluminum-zinc alloy armor plate, and its composition is 55% Al,43.3% Zn and 1.6% Si. The plate with smooth surface and excellent corrosion resistance of the atmosphere, which is 2 to 6 times higher than hot-dip galvanized sheet of the same thickness of coating. After through three processes, including payoff reel, crop shear and welding, enter into the continuous annealing furnace. During the annealing process, strips are heated closer to the recrystallizing temperature, and then heated to 20~50 above the recrystallizing temperature in the reducing furnace. After keeping the same temperature for 170s,strips are naturally cooled to the normal temperature in the slow cooling process. Afterward, strips enter into the ZN-AL pot through the elephant's trunk and begin in the hot-dip coating process. The optimum temperature range of the plating coat is 630-660ºC.Coated with aluminum-zinc alloy, strips enter into the cooling tower by the steady roll and air knife. After fast cooled with wind or water, they are directly produced into Al-Zn armor plates. The general rate of cooling 30s or so, and strips are cooled to about 60.

Specification
Standard: ASTM A792,JIS G3321,GB/T14978-2008,EN10326-2004
Grade: SGLCC,SGLCD,SGLCDD,SGLC400~SGLC570,DC51D+AZ~DC54D+AZ
Thickness: 0.15-2.5mm
Width: 600-1250mm(Usual:914mm,1219mm,1220mm,1250mm)
Base Metal: Cold-Rolled Steel
Al-Zinc Coating: 30-150g/sqm
Coil Internal Diameter: 508mm/610mm
Surface Treatment: Chromate, Non-Chromate, Oiled, Anti-Finger Print And Etc.
Tolerance: Thickness:+/-0.05mm,Width:+5/-2mm,Total Quantity:+/-10%,Alu-Zinc Coating:+/-10%

Characteristics
GL are 3~6 times more corrosion-resistant compared to GI, but has a similar level of processability and weldability and can replace GI, and in particular is most suitable when replacing GI that require thick galvanized layers and high corrosion resistance.
Only galvalume steel sheet that is used for roofing and walls without painting because of its unique silver spangles and beautiful appearance and high-corrosion resistance, and is used as a cool roofing material because of its excellent heat reflection qualities.
Can replace aluminum gilded steel sheets because for certain purposes of its eletrical conductivity and its heat-resistance qualities even at high temperatures that do not exceed 315ºC.
Has greater surface hardness than GIs, and is much more wear-resistant.
Corrosion resistance increased more with resin-coating treatment, which enables roll forming or press forming without the spraying of processed oils.


Surface Finish And Treatment
Item Classification Symbol
Coating Type Al-Zn Alloy AZ
Surface Finish Regular Spangle -
Skin Passed Spangle S
Minimized Spangle -
Surface Treatment Chromate Passivated C
Non-Chromate Passivated C5
Chromate Passivated + Oilling CO
Non-Chromate Passivated + Oilling CO5
Anti-Finger Print N
Non-Chromate & Anti-Finger Print Treatment N5
Oilling O
No Treatment U
Coating Type Recommended Coating Weight (g/)
Al-Zn Alloy 30/30,50/50,60/60,80/80,100/100,120/120,150/150

 

 

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ASTM 792A Galvalume Aluzinc Coated Steel For Construction Building 0

 

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