- Specifications & Grades
- Mechanical Properties
- Applications
Specifications & Grades
Specifications of Hot Dipped Galvanized Steel
| Hot Dipped Galvanized Steel Sheet | Galvanized steel sheet (Regular Spangle) | Nominal thickness | 0.23-0.6mm | Nominal width | 800-1250mm |
| Nominal thickness | 0.7-2.0mm | Nominal width | 800-1500mm | ||
| Nominal thickness | 2.3-3.5mm (hot rolled galvanized sheet) | Nominal width | 800-1250mm | ||
| Galvanized steel sheet (Zero Spangle) | Nominal thickness | 0.35-2.0mm | Nominal width | 1000-1500mm | |
| Galvanized steel sheet used for pre-painting | Nominal thickness | 0.25-0.8mm | Nominal width | 800-1250mm | |
| Hot Dipped Galvanized Steel Coil | Inner diameter | 508mm or 610mm | |||
| Galvanized steel coil weight | 4-6 tonnes (thickness ≤1.2mm),5-8 tonnes (thickness >1.2mm),or customizable | ||||
| Zinc Coating (Spangle) | Regular spangle (SR) | Thickness:0.25-1.20mm (commercial quality CQ/drawing quality DQ) | |||
| Thickness:1.2-3.5mm (structural quality SQ) | |||||
| Spangle-free (F) | Thickness:0.35-2.00mm | ||||
| Surface Treatment | Chromium passivation (C) | Thickness:0.25-3.5mm | |||
| Chromium passivation + oiling (CO) | Thickness:0.7-3.50mm | ||||
| Trivalent chromium passivation (C3) | Thickness:0.25-3.50mm | ||||
| Trivalent chromium passivation + oiling (CO3) | Thickness:0.7-3.50mm | ||||
| Chrome-free passivation (C5) | Thickness:0.25-3.50mm | ||||
| Anti-fingerprint film (AF) | Thickness:0.35-2.00mm (Zero Spangle) | ||||
Tolerances of Dimensions
| Width Tolerance | Nominal Width | Normal Accuracy PW.A | Advanced Accuracy PW.B |
| ≤1200 | 0-5 | 0-2 | |
| >1200-1250 | 0-6 | 0-2 | |
| Thickness Tolerance | We deliver standard products with negative tolerance to ensure quality and consistency. For any special requirements,customers should specify their needs when placing an order to guarantee customized adjustments. | ||
| Our thickness tolerance of ±0.03mm offers better precision than national standards. However,for some coils,slight deviations may occur within the first or last 30 meters due to standard industry practices. | |||
Grades of Hot Dipped Galvanized Steel
| European Standard | Japanese Standard | Usage |
| DC51D+Z DC51D+AZ DC51D+ZA | SGCC SZACC SGLCC | Galvanized steel for general use |
| DC52D+Z DC52D+AZ DC52D+ZA | SGCD1 SZACD1 SGLCD1 | Galvanized steel for drawing |
| S280GD+Z S280GD+AZ S280GD+ZA | SGC340 SZAC340 SGLC340 | Galvanized steel for structural purpose |
| S350GD+Z S350GD+AZ S350GD+ZA | SGC400 SZAC400 SGLC400 | Galvanized steel for structural purpose |
Mechanical Properties
Hot Dipped Galvanized Steel Compliant with National / European Standards
| Grade | Yield Strength (MPa) | Tensile Strength (MPa) | Elongation A80 (%) |
| TDC51D+Z,TDC51D+ZA | 一 | 270-500 | ≥20 |
| TDC52D+Z,TDC52D+ZA | 140-300 | 270-420 | ≥24 |
| TS220GD+Z,TS220GD+ZA | ≥220 | ≥300 | ≥20 |
| TS250GD+Z,TS250GD+ZA | ≥250 | ≥330 | ≥17 |
| TS280GD+Z,TS280GD+ZA | ≥280 | ≥360 | ≥16 |
| TS320GD+Z,TS320GD+ZA | ≥320 | ≥390 | ≥15 |
Hot Dipped Galvanized Steel Compliant with Japanese Standard
| Grade | Yield Strength (MPa) | Tensile Strength (MPa) | Elongation A50 (%) | |||
| Nominal thickness (mm) | ||||||
| 0.25-<0.40 | 040- <0.60 | 0.60-<1.00 | ≥1.00 | |||
| SGCC | - | ≥270 | ≥28 | ≥31 | ≥34 | ≥36 |
| SGCD | ≤240 | ≥270 | ≥30 | ≥34 | ≥36 | ≥37 |
| SGC340 | ≥245 | ≥340 | ≥20 | ≥20 | ≥20 | ≥20 |
| SGC400 | ≥295 | ≥400 | ≥18 | ≥18 | ≥18 | ≥18 |
Notes:
a. Testing follows strict procedures based on applicable industry standards.
b. With prolonged storage, steel sheets and coils may experience changes in their mechanical properties. This can affect formability, leading to issues such as increased hardness and reduced flexibility. To maintain the best performance, we recommend using the materials promptly after purchase.
