ROOFING SHEET STEEL MATERIAL GALVANIZED STEEL COIL GI COIL

ROOFING SHEET STEEL MATERIAL GALVANIZED STEEL COIL GI COIL

Thickness:0.18-2.0mm

Width: Under 1500mm

Zinc coating:20-275g/m2

Technique: Cold Rolled

Description

Basic information

Model NO.	Customized	Brand Name	JEC
Standard	AISI,ASTM,BS,DIN,GB,JIS	Type	Steel Coil
Item	DX51D hot dipped galvanized steel coil	Coating	Z20-Z275
Grade	DX51D SGCC SGHC G550	Tolerance	±1%
Thickness	0.18-2.0mm	Spangle	No spangle,Min spangle,Regular spangle
Width	Under 1500mm	Oiled or Non-oiled	Non-oiled
Technique	Hot Rolled Based	Coil Weight	3-8Tons,as your request
Processing Service	Welding, Punching, Cutting, Bending, Decoiling	Coil ID	508mm/610mm
Skin Pass	Yes	Surface	Galvanized Coated
Hardness	Soft or Hard	Zinc Coating	20-275G/M2
Surface treatment	Galvanized/Galvalume	Delivery time	15-25 days after we got T/T payment
Package	Seaworthy package plastic film + waterproof paper + steel plate + packaging steel	Payment term	30%TT Balance T/T and L/C both ok
MOQ	25 tons	Trademark	JEC
Usage	Roofing sheets, Construction，Door and windows,Solar heater,Cold room,Kitchen utensils,Household appliance,Decoration，Transportation and other lines	HS Code	721049

Product Description

Product name	DX51D hot dipped galvanized steel coil
Standard	AISI,ASTM,BS,DIN,GB,JIS
Grade	DX51D SGCC SGHC G550
Material	CGCC/SGCH/G350/G450/G550/DX51D/DX52D/DX53D
Thickness	0.18-2.0mm
Width	Under 1500mm
Surface treatment	Galvanized/Galvalume
Surface Structure	No spangle,Min spangle,Regular spangle
Coil Weight	3-8Tons,as your request
MOQ	25tons
Package	Seaworthy package plastic film + waterproof paper + steel plate + packaging steel
Delivery time	15-25 days after we got TT payment
Payment term	30%TT Balance TT and LC both ok

Different Surface:Small,Large,Zero.Select as per your requirement
①Normal zinc flower plating flash coating:

During the normal coagulation process, the zinc grain is free to grow into a plating layer having a significant zinc flower morphology.

② Small clever flower coating minimizes flash coating:
The zinc layer is in the process of solidification, and the zinc grain is limited to form a small zinc plating layer as much as possible.

③ No wallless plating flashes:
By adjusting the hydraulic component, there is no plating layer that is uniform with visible zinc flowers.

(1) Normal spangle coating

In the normal solidification process of the zinc layer, zinc grains grow freely to form a coating with obvious spangle morphology.

(2) Minimized spangle coating

During the solidification of the zinc layer, the zinc crystal grains are artificially restricted to form the smallest possible spangle coating.

(3) Spangle-free coating

(4) Zinc-iron alloy coating

It is obtained by adjusting the chemical composition of the plating solution, which does not have a visible spangle morphology and has a uniform surface coating.The steel strip after passing through the galvanizing bath is heat treated to form an alloy layer of zinc and iron throughout the coating. This coating has a dark gray appearance without metallic luster, and is easy to powder during the violent forming process. In addition to cleaning, the coating can be painted directly without further treatment.

(5) Differential coating

For both sides of the galvanized steel sheet, coatings with different zinc layer weights are required.

(6) Smooth skin pass

Smoothing is a kind of cold rolling of galvanized steel sheet with a small amount of deformation for one or several of the following purposes.