Galvalume Coil

The aluminum-zinc-plated steel alloy coating is composed of about 55% aluminum, about 43.5% zinc, and about 1.5% silicon. Compared with traditional galvanized products, it has more excellent corrosion resistance, heat resistance, heat reflectivity and other characteristics. The zinc flower（spangle） on the surface of the aluminum-plated zinc plate is small and uniform, with bright colors and high surface hardness. It can be coated with fingerprint-resistant semi-permeable membranes of various colors, and is widely used in household appliances, construction, structure, electrical and other industries.

Product name	Zincalume plate
Grade	SGCC/DX51D/DX52D
Thickness	0.09-2.0mm
Width	750-1250mm
Coil Weight	2-10T
Coil ID	508/610mm
Base matenal	GI/GL/GA/AL/STS
Coating	Z20-Z275
Annual production capacity	1000000T
Place of Origin	Shandong, China
Production Standard	EN/GB/AISI/ASTM/DIN/JIS
Delivery Time	7-15 days/According to customer requirements
Brand Name	Xinhe
Certificate	ISO9001/ISO14001/ISO45001
Payment	FOB 30% deposit,70% before shipment
Quality assurance	According to the order requirements
Packaging requirements	According to the order requirements

Product Name	Grade	Yield Strength/Mpa	Tensile strength/Mpa	Elongation after breaking/%
Low-carbon steel	DX51D+AZ	≤360	≤440	≥20
	DX52D+AZ	≤260	300-360	≥28
Gapless atomic steel	DX53D+AZ	≤200	270-320	≥38
	DX54D+AZ	≤180	270-310	≥40
Structural steel	S250GD+AZ	≥250	≥330	≥19
	S350GD+AZ	≥350	≥420	≥16
	S450GD+AZ	≥450	≥510	≥14
	S550GD+AZ	≥550	≥560	/
Special material for keel	LG550GD+AZ	≥550	≥560	≥5

Features

Excellent corrosion resistance.

good heat resistance

Good adhesion between coating and paint film

has good processing properties,

Can be punched, sheared, welded, etc.;

The surface conductivity is excellent.

The Difference Between Galvanized Sheet And Aluzinc Galvalume Steel Coil

The biggest difference between galvanized sheet and aluzinc galvalume steel coil is the difference in the coating. The galvanized sheet surface is evenly distributed with a layer of zinc material, which plays an anodic protection role for the base metal, which plays an anodic protection role for the base metal, the alternative corrosion protection of zinc material. The base metal can be damaged only when the zinc is completely corroded.

The surface coating of the galvalume steel sheet is composed of 55% aluminum, 43.5% zinc, and a small number of other elements. The surface of the galvanized coating is a honeycomb structure at the microscopic level. The “honeycomb” composed of aluminum contains zinc. In this case, although the aluminum-zinc coating also plays the role of anodic protection, due to the less zinc content and the zinc material is not easily electrolyzed by aluminum, the role of anodic protection is significantly reduced. Therefore, once the galvalume steel sheet is cut,  it will rust quickly when the cut edge is lost to be protected, so the galvalume steel sheet should be cut as little as possible. The service life of the board is extended.

Antifinger/Non-Antifinger

Galvalume steel sheets can be divided into anti-finger(AFP) and Non-antifungal.

Anti-finger includes color anti-finger and colorless anti-finger.

Anti-fingerprint refers to coating a layer of anti-fingerprint liquid on the surface of a galvalume steel coil to prevent oxidation. Since human sweat and aluminized zinc are easily oxidized, a layer of anti-fingerprint liquid is applied to increase the service life of the Galvalume steel sheet.