Tianjin Bohai Metal Corporation

Z80 Roofing Galvanized Steel Coil

Galvanized steel coil is a kind of steel coil that immersed in the dissolved zinc bath to adhere to the surface with a layer of zinc. At present, the main method is to make galvanized steel coil be dipped in a bath with dissolved zinc. The commonly used specifications of galvanized roll are 0.12mm-3mm and Zinc coated from Z60,Z80,Z275g/m2.

Galvanized Steel Coil

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Commodity name: Z80 Roofing Galvanized Steel Coil

Hot Dipped Galvanized Sgcc Steel Z80 Coils/Hdgi Coils/Galvanized Steel Coil

Specifications:

Thickness	0.12-6.0mm
Width	600-1250mm or as per client requirment
Zinc coating	40-275g/m2
Coil Id	508mm/610mm
Coil weight	3-5mt
Material	SPCC, SGCC, SGCD,SECC,DX51D
Super structure	zero spangle,regular spangle,min spangle
Surface treatment	chromated and oiled,chromated and non-oiled
Standard	GB/T2518-2004,JIS G3302,EN10327,ASTM A653M

Galvanized Standard& Zinc Coating

Standard	GB/T2518-2004	JIS G3302	EN10327	ASTM 1653M	ASTM 1653M(BS)
ZINC COATING				Z001	G01
	Z60		Z060
	Z80	Z08	Z080
				Z90	G30
	Z100	Z10	Z100	Z100
	Z120	Z12	Z120	Z120	G40
	Z180	Z18	Z180	Z180	G60
	Z250	Z25	Z250	Z250
	Z275	Z27	Z275	Z275	G90
	Z350	Z35	Z350	Z350
STEEL GRADE	02	SGCC	DX51D+Z	CS TYPE A/B/C
STEEL GRADE				CS TYPE A/B/C

Galvanized Steel Coil Types

According to the processing method, we divide galvanized steel into the following categories:

1. Hot-dip Galvanized Steel Coil

As the name implies, hot-dip galvanizing is immersing the cleaned iron sheet into the molten zinc bath at about 500 degrees to form a zinc layer. It is the most commonly used method. It has some advantageous features:

1) The entire steel surface is uniformly covered with a zinc layer, even the corners, hollows, etc. so that the steel sheet is fully protected.

2) The cost of hot-dip galvanizing is cheap.

2. Electro-galvanized Steel Coil

Electro-galvanizing is a process of applying a layer of zinc to steel through electroplating, with a saline anode and steel conductor. It is able to enhance the corrosion and heat resistance of steel. Also, it makes steel sheets more good-looking.

Spangles：

Applications：

Galvanized steel coil (GI) is mainly used in many fields such as construction, automobile, metallurgy, electrical equipment and so on. Construction-roofs, doors and windows, rolling shutters and hanging skeletons Automobile-vehicle shell, chassis, door, trunk lid, fuel tank and fender metallurgy.