Gnee Steel (Tianjin) Co., Ltd. is one of the most reliable manufacturers and suppliers of z350 galvanized steel coils in China. Welcome to wholesale customized z350 galvanized steel coils at low price from our factory. If you have any enquiry about free sample and cheap products, please feel free to email us.
Products Description
|
item |
value |
|
Place of Origin |
China |
|
Thickness |
0.1-4mm |
| Technical Standard | EN10147/EN10142/DIN 17162/JIS G3302/ASTM A653 |
|
Length |
as your requirement |
| Steel Grade | Dx51D, Dx52D, Dx53D, DX54D, S220GD, S250GD, S280GD, S350GD, S350GD, S550GD; SGCC, SGHC, SGCH, SGH340, SGH400, SGH440, SGH490, SGH540, SGCD1, SGCD2, SGCD3, SGC340, SGC340 , SGC490, SGC570; SQ CR22 (230), SQ CR22 (255), SQ CR40 (275), SQ CR50 (340), SQ CR80(550), CQ, FS, DDS, EDDS, SQ CR33 (230), SQ CR37 (255), SQCR40 (275), SQ CR50 (340), SQ CR80 (550); or Customer's Requirement |
|
Tolerance |
±1% |
Galvanized steel coils with a Z350 designation have a relatively higher amount of zinc coating, which provides enhanced corrosion resistance compared to lower zinc coating weights. These coils are commonly used in applications where durability and protection against rust and corrosion are essential.
Surface structure
|
Surface Structure |
Zero Spangle |
Big Spangle |
|
Weight of zinc coating |
Zinc > 20g/sm |
Zinc > 30g/sm |
|
Surface Finish |
|
Spangled galvanized steel sheet is the spangle obtained by the condensation of the zinc coating under normal conditions after galvanizing. It is mainly used in buildings and other places where there is little direct contact with the human body.
Galvanized steel sheets without spangles are mainly produced through a special production process to control the lead in the zinc pot to a certain level, or after the strip steel is out of the galvanized pot, it undergoes special treatment to control the spangles to less than a certain level. Mainly used in home appliance housing.
Production process
1. Uncoiler
2. Welder
3. Entry Looper
4. Pre-treatment
5. Annealing Furnace
6. Zinc Pot
7. Cooling Tower
8. Water Quench Tank
9. Skin Pass
10. Tension Leveler
11. Passivation Coater
12. Exit Looper
13. Recoiler
Product transportation
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