galvanized steel
Looking for trusted hot-dip galvanized steel manufacturers in China? You've come to the right place. As a direct factory with 20 years of structural steel experience, GNEE Steel supplies EN 10346 compliant products at factory prices. Understanding the global equivalent grades of DX51D hot-dip galvanized steel is crucial for international projects and cross-market sourcing.
Hot-dip galvanized steel coil
DX51D is a widely used grade in the hot-dip galvanized steel family, known for excellent formability and basic corrosion resistance. It belongs to the DX series, where "DX" indicates cold-forming capability, "51" represents the minimum yield strength category, and "D" denotes the highest formability level in this series.
Different regions have established their own standards for hot-dip galvanized steel, leading to various equivalent grades that share similar properties with DX51D. Knowing these equivalents helps ensure material compatibility and project compliance.
Global Equivalent Grades of DX51D Hot-Dip Galvanized Steel
The following table outlines the main equivalent grades of DX51D across major regional standards, including their key specifications.
| Regional Standard | Equivalent Grade | Key Property Similarities to DX51D | Application Alignment |
|---|---|---|---|
| EN 10346 (Europe) | DX51D+Z | Identical grade; same chemical composition and mechanical properties | Direct substitution for all applications |
| ASTM A653 (USA) | CS Type B | Similar formability and tensile strength range (270-410 MPa) | Suitable for general-purpose applications |
| JIS G 3302 (Japan) | SGCC | Comparable yield strength (≤340 MPa) and elongation (≥28%) | Matches DX51D in roofing, wall cladding uses |
| GB/T 2518 (China) | DX51D+Z | Same grade designation; fully compliant with EN 10346 standards | Perfect replacement for domestic and export projects |
| AS/NZS 1397 (Australia/New Zealand) | G350/G300 | Similar formability; slight variation in yield strength (300-350 MPa) | Compatible for building and construction applications |
| ISO 1461 (International) | Fe Zn 100-P-O | Equivalent coating requirements; matching base material properties | Globally recognized substitute for cross-border projects |
Key Property Comparison: DX51D vs Major Equivalent Grades
To ensure proper substitution, it's essential to compare the core mechanical properties of DX51D with its equivalents.
| Property | DX51D (EN 10346) | SGCC (JIS G 3302) | CS Type B (ASTM A653) | G350 (AS/NZS 1397) |
|---|---|---|---|---|
| Yield Strength (MPa) | ≤ 340 | ≤ 340 | 230 min | 350 min |
| Tensile Strength (MPa) | 270 - 410 | 270 - 410 | 270 min | 450 min |
| Elongation (%) | ≥ 28 (A80mm) | ≥ 28 (A50mm) | ≥ 20 (A50mm) | ≥ 15 (A50mm) |
| Formability | Excellent | Excellent | Very Good | Good |
| Zinc Coating Options | Z60-Z350 | Z60-Z275 | G30-G90 (30-90 g/m²) | Z100-Z275 |
| Weldability | Excellent | Excellent | Very Good | Very Good |
Application Compatibility of DX51D Equivalent Grades
Different equivalent grades may be better suited for specific applications based on regional standards and industry practices.
- Building and Construction:
DX51D (EN 10346) and SGCC (JIS G 3302) are ideal for roofing sheets, wall cladding, and ceiling grids due to their excellent formability.
G350 (AS/NZS 1397) works well for structural components like purlins in Australian and New Zealand projects.
- Electrical and Appliance:
CS Type B (ASTM A653) is commonly used for electrical enclosures and appliance casings in North American markets.
DX51D+Z is preferred for European electrical projects due to strict EN standard compliance.
- Agricultural and Industrial Equipment:
All DX51D equivalents are suitable for lightweight equipment parts, but DX51D+Z275 and SGCC-Z275 offer enhanced corrosion resistance for outdoor use.
- Automotive Components:
DX51D and SGCC are used for non-structural automotive parts like brackets and covers, thanks to their good weldability and formability.
Sourcing Tips for DX51D Equivalent Grades from GNEE Steel
When sourcing DX51D or its equivalents, consider these key factors to ensure project success:
- Standard Confirmation: Clearly specify the required regional standard (EN, ASTM, JIS, etc.) to avoid grade mismatches.
- Coating Consistency: Ensure the zinc coating weight (e.g., Z120, Z275) matches across substituted grades for uniform corrosion resistance.
- Documentation: Request mill test certificates (MTC) to verify mechanical properties and standard compliance.
- Application Alignment: Consult GNEE Steel's technical team to confirm equivalent grade suitability for your specific use case.
- Batch Consistency: For large projects, source from a single manufacturer (like GNEE Steel) to maintain consistent material quality across batches.
Understanding the global equivalent grades of DX51D hot-dip galvanized steel simplifies international sourcing and ensures project compliance. GNEE Steel supplies DX51D and all its major equivalents, adhering to strict regional standards and providing full certification. Whether you need DX51D for European projects or SGCC for Asian markets, contact us today for factory-direct pricing and technical support!
- Available Steel Grade
| Steel grade | Coating | Yield(MPA) | Tensile(MPA) | Elongation(%) |
| DX51D | Z,ZF | -- | 270-500 | 20 |
| DX52D | Z,ZF | 140-300 | 270-420 | 22 |
| DX53D | Z,ZF | 140-260 | 270-380 | 26 |
| DX54D | Z,ZF | 140-220 | 270-350 | 30 |
| S220GD | Z,ZF | 220 | 300 | 18 |
| S250GD | Z,ZF | 250 | 330 | 17 |
| S280GD | Z,ZF | 280 | 360 | 16 |
| S320GD | Z,ZF | 320 | 390 | 15 |
| S350GD | Z,ZF | 350 | 420 | 14 |
| S400GD | Z,ZF | 400 | 470 | -- |
| S450GD | Z,ZF | 450 | 530 | -- |
| S500GD | Z,ZF | 500 | 560 | -- |