What is Hot Dip galvalume Aluzinc Steel coil?
Hot Dip galvalume Aluzinc Steel coil is also known as Al-Zn coated steel coil. It is a carbon steel sheet coated with aluminum-zinc alloy through a continuous hot-dip process. The typical coating composition is 55% aluminum, 43.5% zinc and 1.5% silicon.
Hot dip Galvalume Aluzinc Steel Coil is a coated steel that is used in the automotive, industrial, and building and construction industries. The coating on this type of corrugated steel provides corrosion resistance in severe environments, including marine and acid environments.
Products Standard of hot dip galvalume aluzinc steel coil
Product Specification and Size : | ||||||||||||||
Hot Dip Galvalume Aluzinc Coated Steel Coil (GL) | ||||||||||||||
| GB T 2518 | JIS G 3321 | ASTM A792M | EN10346 | ||||||||||
Specifications | DX51D | DX52D | S220GD | S550GD | SGLCD | SGLCC | SGLC400 | CS | DS | SS | DX51D | DX52D | S220GD | S550GD |
DX53D | S250GD | SGLCDD | 440 570 | Type | Grade | DX53D | S250GD | |||||||
S280GD | A | 230 | S280GD | |||||||||||
S320GD | B | 255 | S320GD | |||||||||||
S350GD | C | 275 | S350GD | |||||||||||
FS | 340 | |||||||||||||
550 | ||||||||||||||
Thickness of Base Steel (mm) | DX51D, S220GD, S250GD: 0.13~2.5mm; | SGLCC, SGLC340: 0.13~2.52mm; | CS Type A, B, C, Grade 230, 255: 0.13~2.5mm; | DX51D, S220GD, S250GD: 0.13~2.5mm; | ||||||||||
DX52D: 0.13~2.0mm; | SGLCD1~3: 0.13~2.0mm; | FS Type A, B: 0.13~2.0mm; | DX52D: 0.13~2.0mm; | |||||||||||
DX53D, 54D: 0.13~2.0mm; | SGLC400: 0.13~2.0mm; | DS: 0.13~2.0mm; | DX53D, 54D: 0.13~2.0mm; | |||||||||||
S280GD: 0.13~2.0mm; | SGLC440: 0.13~2.0mm; | SS Grade 275: 0.13~2.0mm; | S280GD: 0.13~2.0mm; | |||||||||||
S320GD, S350GD: 0.13~2.0mm; | SGLC570: 0.13~2.0mm; | SS Grade 340: 0.13~2.0mm; | S320GD, S350GD: 0.13~2.0mm; | |||||||||||
S550GD: 0.13~2.0mm; | SS Grade 550: 0.13~2.0mm; | S550GD: 0.13~2.0mm; | ||||||||||||
Coating Mass | AZ30~AZ200 | AZ70~AZ200 | AZM100~AZM210 | AZ100~AZ185 | ||||||||||
Regular Spangle | ||||||||||||||
Surface Finish | Regular Spangle | |||||||||||||
Surface Treatment | Chromating, Oiled, Resin Coated (Anti-Fingerprint), or Green Treatment (Environmentally Friendly Anti-Fingerprint) | |||||||||||||
Remarks | 1. Tolerance for thickness, width, flatness and so on conforms to individual product specification. | |||||||||||||
2. All products with thickness 2.0mm and under can be skin passed. | ||||||||||||||
3. The coil inside diameter can be either 508mm or 610mm. The maximum coil outside diameter is 2000mm. | ||||||||||||||
4. Please make inquiries to our Sales & Marketing Division for products with special specifications. | ||||||||||||||
5. Coating mass beyond the specifications above can be provided by Witop Steel. upon mutual agreement between customers and us. |
Steel Grade of hot dip galvalume aluzinc steel coil
According to different production standards, materials are divided into required materials. Main production standards and material comparisons are as follows:
Production Standard | ||||
Steel Grade | GB T 2518 | JIS G 3321 | ASTM A792M | EN 10346 |
Commercial | DX51D | SGLCC | CS Type B & C | DX51D |
Drawing | DX52D | SGLCD | FS | DX52D |
Deep Drawing | DX53D | SGLCD | DS | DX53D |
Special Deep Drawing | DX54D | - | EDDS | DX54D |
special deep drawing quality, (only +AS), heat resistance up to 800 °C; | DX55D | - | - | DX55D |
Extra Deep Drawing | DX56D | - | - | DX56D |
Super Deep Drawing | DX57D | - | - | DX57D |
High-Strength | S250GD | - | - | S250GD |
S280GD | - | - | S280GD | |
S320GD | SGLC400 | - | S320GD | |
S350GD | SGLC440 | - | S350GD | |
S450GD | SGLC490 | SS 345 Class 1 | S450GD | |
S550GD | SGLC570 | SS 550 Class 1 | S550GD |
Surface Treatment of hot dip galvalume aluzinc steel coil
There are many surface treatment processes for galvalume Aluzinc coil, and the surface treatment requirements are different according to different uses. The following are common surface treatments,
Hot-dip coated flat products receive one of the following surface treatments at the producer’s plant :
chemical passivation: C
oiling: O
chemical passivation and oiling CO
Anti Fingerprint AFP
The period of protection afforded is limited and depends on the atmospheric and storage conditions.
Hot-dip coated flat products are only supplied without surface treatment (untreated (U)) if expressively desired bythe purchaser on his own responsibility. in this case, there is increased risk of formation of corrosion products onthe surface during storage and transportation.
Chemical passivation, Oiling treatment , Anti Fingerprint, Skin-pass, Chromate, Unoiled, Dry etc.
If you have any questions about hot dip Galvalume Aluzinc Steel Coil or need to find a supplier, Witop Steel is happy to help you.