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Galvalume Steel Coil

Galvanized zinc coil is based on cold-rolled steel plate, which is solidified by 55% aluminum, 43.4 zinc and 1.6 silicon at 600 ℃. It combines the physical protection and high durability of aluminum with the electrochemical protection of zinc. Also known as aluminized zinc steel coil.

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Galvalume Steel Coil Description

The production process of aluminum zinc plating is as follows:
Uncoiling-cleaning-annealing-zinc pot-cooling-air knife-straightening-post-treatment-coiling
Heat Reflection
People use it as a thermal insulation material, and its thermal reflectivity is up to twice that of galvanized steel.
Heat Resistance
Galvanized steel coil has good heat resistance and can withstand high temperatures above 300°C, which is very similar to the oxidation resistance of aluminized steel at high temperatures. Commonly used in chimney tubes, ovens, illuminators, fluorescent lampshades, etc.
Corrosion Resistance
The key to the corrosion resistance of aluminized zinc steel coil is the protective performance of aluminum. Once the zinc is worn, the aluminum forms a dense layer of aluminum oxide, preventing further internal corrosion.
Economy
The density of 55% AL-Zn is smaller than that of Zn. Therefore, when the coating weight and thickness are the same, the area of the aluminum-zinc plated steel sheet is 3% larger than that of the galvanized steel sheet.
Easy to Paint
The coating material on the aluminized zinc steel plate has excellent adhesion, and can be directly coated with tar on advertising boards and common plates without pretreatment such as weathering.

Scope of Application

Construction industry: such as roof, internal and external wall panels, sound insulation walls, pipes, garages, etc.
Automotive industry: such as mufflers, exhaust pipes, wiper accessories, fuel tanks, truck containers, etc.
Household appliances: such as refrigerator backplane, air conditioner, microwave oven, LED backlight, electric cabinet, etc
Agricultural use: such as greenhouse, granary, pig farm, chicken coop, etc
Other industries: such as heat exchangers, dryers, etc.

Product Parameters

Product Name	Galvalume Steel Coil
Thickness	0.12mm-6.00mm
Width	600mm-1500mm
Length	1m-12m, Support Customization
Standard	AISI, ASTM, DIN, JIS, GB, JIS, SUS, EN, etc.
Thickness of Aluminum Zinc Coating	30-185g/m²
Content of Al-Zn Coating	Al: 55%, Zn: 43.5%, Si: 1.5%

Chemical Composition

Al	Zn	Si	Fe	Cu	Cd	Pb	Sn	Ni	Close Cr
55-58	41-43	1.5-2	0.25	0.03	0.05	0.01	0.05	0.05	0.05

Mechanical Properties

Grade	Yield Strength MPa≥	Tensile Strength MPa≥	Elongation A%≥
DX51D Z/ZM/AZ/AM	240-380	270-500	22
DX52D Z/ZM/AZ/AM	140-300	270-420	26
DX53D Z/ZM/AZ/AM	140-260	270-380	30
DX54D Z/ZM/AZ/AM	120-220	260-350	36
S220GD Z/ZM/AM	220	300	20
S250GD Z/ZM/AZ/AM	250	330	19
S280GD Z/ZM/AM	280	360	18
S300GD A/AM	300	380	18
S320GD Z/ZM/AM	320	390	17
S350GD Z/ZM/AZ/AM	350	420	16
S450GD A/AM	450	480	15
S550GD Z/ZM/AZ/AM	550	550	-

Galvanized Surface Selection

Zero Spangle	Minimized Spangle	Normal Spangle	Large Spangle

Type of Coating	Recommended Coating Weight
Aluminum-zinc Alloy	30/40/50/60/75/90/100/150
A: Coating quality50g/㎡,approximately equal to the coating thickness13.3pm

Project	Classification	Symbol
Type of Coating	Aluminum-zinc Alloy	AZ
Surface Finish	Conventional Sequins	R
	Minimize Sequins	M
	Skin Through	S
Surface Treatment	Chromate Passivation	c
	Non-chromate Passivation	C5
	Chromate Passivationoiling	CO
	Chromium-free Passivationoiling	CO5
	Anti-fingerprint	N
	Chromate-free/Anti-fingerprint	N5
	No chromate high weather resistance fingerprint	NW
	Oil filling	0
	No treatment	U

Material Comparison

Chinese Standard	European Standards	American Standard	Japanese Standard
DC51D+AZ	DX51D+AZ	CS Type B, Type C	SGLCC
DC52D+AZ	DX52D+AZ	DS	SGLCD
S250GD+AZ	S250GD+AZ	255	-
S300GD+AZ	-	-	-
S350GD+AZ	S350GD+AZ	345	Class1 SGLC490
S550GD+AZ	S550GD+AZ	550	SGLC570

Packing and delivery

Our annual sales are 8,000 tons. It is the top steel service provider and steel solution provider in the region. The company has a powerful sales team to provide customers with comprehensive technical support, pre -sales service and comprehensive after -sales service. The entire perfect treatment and sales process is our quality assurance.

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COMMON PROBLEM

How long does your delivery time take?

Generally, our delivery time is within 7-45 days, if there is a great demand or special circumstances, it may be delayed.

How could you guarantee your products?

Each piece of products is manufactured by certified workshops, inspected by Linxu piece by piece according to national QA/QC standard. We also could issue the warranty to customer to guarantee the quality.

Do you accept the third party inspection?

Yes absolutely we accept.

Do you provide samples ? Is it free or extra ?

The sample could can provide for customer with free,but the courier freight will be covered by customer account.

Will you delivery the goods on time?

Yes,we promise to provide best quality products and delivery on time. Honesty is our company's tenet.

Are you trading company or manufacturer ?

We are professional manufacturer with rich experience, and our company also is a very professional a trade company for steel products. We can also provide a wide range of steel products.

OUR HONOR

APPLICATION SCENARIOS

Oil field

Aircraft manufacturing

Train manufacturing

Ship manufacturing

Power industry

Construction industry

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Galvalume Steel Coil