Hot Dip Galvalume Aluzinc Steel Coil

Hot Dipped Galvalume Steel Coil

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

DX51D

DX52D

S220GD

S550GD

DX53D

S250GD

SGLCDD

440 570

Type

Grade

DX53D

S250GD

S280GD

230

S280GD

S320GD

255

S320GD

S350GD

275

S350GD

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.