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Q345 S550GD Galvanized Steel Coil DX51D+Z DX54D+ZF SECC DX51D+Z Gi Sheet Coil

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Q345 S550GD Galvanized Steel Coil DX51D+Z DX54D+ZF SECC DX51D+Z Gi Sheet Coil

Name: Q345 S550GD Galvanized Steel Coil DX51DZ DX54DZF SECC DX51DZ Gi Sheet Coil
Brand: HTFD
Price: 1000 USD

China Q345 S550GD Galvanized Steel Coil DX51D+Z DX54D+ZF SECC DX51D+Z Gi Sheet Coil factory

Brand Name : HTFD

Model Number : Q195 Q235 08F SPCC Q345（GB）S550GD（EN）DX51D+Z DX54D+ZF SECC DX51D+Z

Certification : ISO

Place of Origin : CHINA

MOQ : 1Ton

Price : USD 1000-2000

Payment Terms : T/T

Supply Ability : 500000ton/Year

Delivery Time : 5-7days

Packaging Details : Standard package

Surface Treatment : Galvanized

Thickness : 0.12-0.2mm

Type : Galvanized Coil

Transport Package : Standard Packaging

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Q195 Q235 08F SPCC Q345(GB)S550GD(EN)DX51D+Z DX54D+ZF SECC DX51D+Z Galvanized steel Coil

Galvanizing Steel coil is a thin steel sheet dipped into a molten zinc tank to make its surface adhere to a layer of zinc.The main use of continuous

galvanized process production, that is, the roll of steel plate continuous dip in the melting zinc plating tank made of galvanized steel.

Galvanized coil has the characteristics of strong corrosion resistance and good surface quality, and is widely used in construction,

home appliances, automobiles, containers, transportation and other fields.

Thickness	0.10~6mm
Width	Galvanized steel strip:24-600 mm; galvanized steel coil:600-1250mm
Coil weight	Usually is 3-4.5 tons,the max coil is 10 tons
Zn coating	0.1-0.8 mm is 30-150 g/m2; 0.8-1.5 mm is 30-180 g/m2;1.5-6.0 mm is 30-275 g/m2
Coil ID	600-1500 mm,Normal width is 91 4/1000/1219/1250/1500 mm
Steel grade	DX51D,DX52D,DC01,DC02,SGHC
Surface	regular/mini/big/zero spangle,skin pass, chromated, unoiled, dry
Packaging	seaworthy export standard package, or according to the customers'requirement
MOQ	1 ton , We can accept sample order.
Shipment Time	Within 5-10 workdays after receiving deposit

Q345 S550GD Galvanized Steel Coil DX51D+Z DX54D+ZF SECC DX51D+Z Gi Sheet Coil Why do galvanized coils cause white rust and black rust?

The causes of white rust and black spots are as follows: black spots are formed by further oxidation of white rust.
The main causes of white rust are:
(1) Poor passivation, insufficient or uneven passivation film thickness;
(2) The surface is not oiled or there is residual moisture on the strip surface;
(3) The surface of the strip steel contains moisture during coiling;
(4) The passivation is not completely dried;
(5) Damp or rain during transportation or storage;
(6) The storage time of finished products is too long;
(7) The galvanized sheet is in contact with or stored together with other corrosive media such as acid and alkali.

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Q345 S550GD Galvanized Steel Coil DX51D+Z DX54D+ZF SECC DX51D+Z Gi Sheet Coil Images

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