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Shanqi
Product Description
For galvanized coils, the sheet steel is immersed in a molten zinc bath to make a sheet of zinc coated on its surface. It is mainly produced by continuous galvanizing process, that is, the rolled steel plate is continuously immersed in a plating tank with zinc melted to make galvanized steel plate; alloyed galvanized steel plate. This kind of steel plate is also manufactured by hot dip method, but immediately after being out of the tank, it is heated to about 500 ℃ to form an alloy coating of zinc and iron. This galvanized coil has good paint adhesion and weldability.
Plating Definition
(1) normal spangle coating
During the normal solidification process of the zinc layer, the zinc grains grow freely and form a coating with an obvious spangle shape.
(2) Small spangle coating
During the solidification process of the zinc layer, the zinc grains are artificially restricted to form the smallest possible spangle coating.
(3) No spangle coating
The coating obtained by adjusting the chemical composition of the plating solution has no visible spangle morphology and a uniform surface.
(4)Zinc-iron alloy coating
The steel strip after passing through the galvanizing bath is heat treated to form an alloy layer of zinc and iron in the whole coating. The appearance of this coating is dark gray without metallic luster. A coating that can be painted directly without further treatment other than cleaning.
(5) Differential coating
For both sides of galvanized steel sheet, coatings with different zinc layer weights are required.
(6) Smooth
Skin-passing is a cold-rolling process performed on galvanized steel sheets with a small amount of deformation for one or more of the following purposes.
Improve the surface appearance of galvanized steel sheet or be suitable for decorative coating; make the finished product not see the phenomenon of slip line (Lydes line) or crease during processing to minimize temporarily, etc.
Use | Grade | Executive standard | Uses and Features |
Steel for stamping | DX51D+Z,DX51D | GB/t2518 | Including general use, mechanical bite, deep drawing, ultra deep drawing materials, alloyed hot-dip galvanized coating and welding performance are better |
DX52D+Z,DX52D | |||
DX53D+Z,DX53D | |||
DX54D+Z,DX54D | |||
Structural steel | S220GD+Z,S220GD | GB/t2518 | Structural, good corrosion resistance and processability |
S250GD+Z,S250GD | |||
S280GD+Z,S280GD | |||
S320GD+Z,S320GD | |||
S350GD+Z,S350GD | |||
S400GD+Z,S400GD | |||
S500GD+Z,S500GD | |||
Cold formed high strength steel | HX260LAD+Z,HX260LAD | GB/t2518 | Including low-alloy high-strength steel, dual-phase steel, material with good corrosion resistance and excellent processing performance |
HX300LAD+Z,HX300LAD | |||
HX340LAD+Z,HX340LAD | |||
HX380LAD+Z,HX380LAD | |||
HX420LAD+Z,HX420LAD | |||
HC260/450DPD+Z,HC260/450DPD | |||
HC340/600DPD+Z,HC340/600DPD | |||
HC340/600DPD+Z,HC340/600DPD | |||
HC450/780DPD+Z,HC450/780DPD |
FAQ：
Q: What kind of work does your company do?
A: We are a business steel industry and trade. We mainly produces galvanized steel plate/pipe/coil/round bars,etc.
Q: What are the advantages of your company?
A: (1): Prime quality and Competitive price.
(2): Excellent experiences with after-sale service.
(3): Every process will be checked by responsible QC which insures every product's quality.
(4): Professional packing teams which keep every packing safely.
(5): Samples can be provided as your requirements.
Q: What is your terms of payment ?
A: Can be negotiated by both parties. If you have another question, pls feel free to contact us as below
Q: What about your price?
A: Our price is very competitive.
Pls feel free to contact us if you are interested in our products.
Q: How long is your delivery time?
A: Stock steel/Steel for simple cutting/Small amount of general standard steel: about 5-20 days for delivery; Custom steel/bulk steel: about 15-30 days for delivery. Contact us for specific delivery times.
