Shandong Duohe Import And Export Co., Ltd.
Quality is life,customer-centric,staff is fundamental,innovation is power,integrity is our principle.
Add to Cart
What is purpose of zinc coating on GI sheet?
Galvanizing, or galvanization, is a manufacturing process where a coating of zinc is applied to steel or iron to
offer protection and prevent rusting.
What is galvanized steel and why is it useful?
Galvanization is the process of applying a protective zinc coating to steel or iron in order to prevent premature
rust and corrosion. Proponents of galvanized steel, who may use it to construct or repair steel structures, for
example, benefit from lower maintenance and repair costs because of its special properties.
Product description
| Name | Gi Coils Hot Dipped SGCC Dx51d Metal Zinc Galvanised Sheet Roofing Materials 275GSM 2mm Thick Z150 Z120 Z80 Regular Spangle Zinc Coated Galvanized Steel Coil |
| Grade | DX51D+Z, DX52D+Z, DX53D+Z, DX54D+Z, DX56D+Z, DX57D+Z, DC51D+Z, SGCC, SGCD, S220GD+Z, S250GD+Z, S280GD+Z, S320GD+Z, S350GD+Z, S550GD+Z |
| Width | 600-1500mm |
| Thickness | 0.12-4mm |
| Zinc coating | 30-400g/m2 |
| Surface treatment | chromated / oiled/slightly oiled/ dry |
| Hardness | soft, full hard, half hard |
| Spangle | zero spangle / minimized spangle / regular spangle/ big spangle |
| ID coil | 508mm or 610mm |
| Coil weight | 2-8 MT per coil. According to the customer's requirements |
| Package: | Standard export package (Plastic film in the first layer,second layer is Kraft paper. Third layer is galvanized sheet) |
| Application: | Industrial panels, roofing and siding for painting |
| Chemical Composition | ||||||
| GRADE | C | Si | Mn | P | S | Ti |
| SGCC/DX51D+Z | ≤0.10 | ≤0.50 | ≤0.60 | ≤0.10 | ≤0.030 | ≤0.020 |
| DX52D+Z | ≤0.10 | ≤0.50 | ≤0.60 | ≤0.10 | ≤0.030 | ≤0.020 |
| SGCD/DX53D+Z | ≤0.10 | ≤0.30 | ≤0.50 | ≤0.05 | ≤0.030 | ≤0.020 |
| SGCE/DX54D+Z | ≤0.10 | ≤0.30 | ≤0.30 | ≤0.03 | ≤0.020 | ≤0.020 |
| DX56D+Z | ≤0.10 | ≤0.30 | ≤0.30 | ≤0.03 | ≤0.020 | ≤0.020 |
| Structural | ≤0.20 | ≤0.60 | ≤1.70 | ≤0.10 | ≤0.045 | |
| Mechanical Properties | ||||||
| GRADE | Yield Strength MPa | Tensile Strength MPa | Elongation % | |||
| SGCC(DX51D+Z) | ≥205 | ≥270 | - | |||
| SGCD(DX53D+Z) | - | ≥270 | 38 | |||
| SGCE(DX54D+Z) | - | ≥270 | 40 | |||
| DX56D+Z | - | ≥270 | 42 | |||
FAQ