Dx51d Z100 Regular Zero Spangle Hot Dipped Galvanized Steel Coil GI Steel Coil
Price:
Negotiable
MOQ:
10 Ton
Delivery Time:
Negotiable
Brand:
Gnee
Product Description
DX51D Z100 Regular/Zero Spangle Hot Dipped Galvanized Steel Plate Coil
Galvanizing provides one of the most effective and economical methods for protecting bare steel from corrosive environments. Zinc acts as both a barrier between steel and the environment and sacrificially protects the underlying steel plate. When two different metals contact each other in the presence of water and oxygen, sacrificial protection occurs, with zinc preferentially corroding to protect the iron in steel. This protection prevents corrosion in areas not directly covered by zinc and minimizes corrosion diffusion from cut edges, drilled holes, and other exposed areas.
Factors Affecting Zinc Flower Size
When zinc liquid composition supports zinc flower formation, the following factors influence their size:
- Raw Material: Thicker steel plates with smoother surface roughness produce larger zinc flowers
- Cooling Rate: Faster cooling rates shorten crystal growth time, resulting in smaller zinc flowers
- Crystal Nuclei Count: Zinc flower size correlates with crystal nuclei quantity - rougher or less clean steel surfaces produce smaller zinc flowers with more nucleation sites
- Other Factors: Production environment and additional process variables
Chemical Composition Specifications
| Metal Type | Grade | C | Si | Mn | P |
|---|---|---|---|---|---|
| Cold Rolled Steel Sheet | DC51D+Z (St01Z, St02Z, St03Z), DC51D+ZF | ≤0.10 | - | ≤0.50 | ≤0.035 |
| DC52D+Z (St04Z), DC52D+ZF | ≤0.08 | - | ≤0.45 | ≤0.030 | |
| DC53D+Z (St05Z), DC53D+ZF | ≤0.08 | - | ≤0.40 | ≤0.030 | |
| DC54D+Z (St06Z), DC54D+ZF | ≤0.01 | ≤0.10 | ≤0.30 | ≤0.025 | |
| DC56D+Z (St07Z), DC56D+ZF | ≤0.01 | ≤0.10 | ≤0.30 | ≤0.025 | |
| Hot Rolled Steel Sheet | DD51D+Z (St01ZR, St02ZR) | ≤0.10 | - | ≤0.50 | ≤0.035 |
| DD54D+Z (St06ZR) | ≤0.01 | ≤0.10 | ≤0.30 | ≤0.025 |
Product Specifications
| Name | Galvanized Coil |
| Standard | EN10147, EN10142, DIN17162, JIS G3302, ASTM A653, JISG3302, ASTM A653M, EN10327, DIN17162, EN10142, EN10292 |
| Grade | DX51D, DX52D, DX53D, DX54D, S220GD, S250GD, S280GD, S350GD, S550GD, SGCC, SGHC, SGCH, SGH340, SGH400, SGH440, SGH490, SGH540, SGCD1, SGCD2, SGCD3, SGC340, SGC490, SGC570, SQ CR22(230), SQ CR22(255), SQ CR40(275), SQ CR(340), SQ CR80(550), CQ, FS, DDS, EDDS, SQ CR33(230), SQ CR37(255), SQ CR40(275), SQ CE50(340), SQ CR80(550) or Customer's Requirement |
| Thickness | 0.12-3.00mm or customer's requirement |
| Width | 100mm-1500mm according to customer's requirement |
| Type of Coating | Hot Dipped Galvanized Steel (HDGI) |
| Zinc Coating | 30-275g/m² |
| Surface Treatment | Passivation (C), Oiling (O), Lacquersealing (L), Phosphating (P), Untreated (U), Galvanized, PVC, Black and color painting, transparent oil, anti rust oil |
| Packing | Water proof paper inner packing, galvanized steel or coated steel sheet outer packing, side guard plate, wrapped by seven steel belts or according to customer's requirement |
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Company
Gnee Steel (tianjin) Co., Ltd.
Location
FLAT/RM 1512 15/F LUCKY CENTRE NO.165-171 WAN CHAI ROAD WAN CHAI HK
Contact Person
Kelly Zhang