Looking for detailed mechanical properties of S350GD (1.0529) steel for your structural project? You've come to the right place. As a direct factory with strict EN 10346 compliance, GNEE Steel supplies high-quality S350GD galvanized steel plates (material number 1.0529) at factory prices. In this guide, we'll break down its key mechanical indicators, test methods, and how these properties support real-world applications-ensuring you meet project safety standards.
Galvanized steel is steel coated with zinc for corrosion resistance, with grades like DX51D (1.0330, general-use), S320GD (1.0503, medium-strength), and S350GD (1.0529, high-strength). S350GD (1.0529) is defined by its >=350MPa yield strength and good formability, making it ideal for load-bearing parts like construction beams, truck chassis, and machinery frames.
The mechanical properties of S350GD (1.0529) directly determine its performance under stress-whether it's supporting a building's weight or resisting road vibrations. Understanding these indicators helps you avoid structural risks and select the right material for your needs.
Key Mechanical Properties of S350GD Steel
S350GD (1.0529) steel strictly adheres to EN 10346 standards, with mechanical properties verified through rigorous testing. The table below details standard requirements, GNEE Steel's actual performance, and test methods:
| EN 10346 Standard | |||
|---|---|---|---|
| Yield Strength (Rp0.2) | >=350 MPa | 360-400 MPa | EN ISO 6892-1 |
| 410-550 MPa | 420-540 MPa | EN ISO 6892-1 | |
| Elongation (A80mm) | >=17% | 18-22% | EN ISO 6892-1 |
| Impact Energy (0℃, Charpy) | >=27 J | >=30 J | EN ISO 148-1 |
| Pass (180℃, r=1.5t) | Pass (180℃, r=1.5t) | EN ISO 7438 | |
| <=160 HV | 130-150 HV | EN ISO 6507-1 |
: The stress at which the steel begins to deform permanently. Our 360-400MPa range exceeds the standard, ensuring it handles heavy loads without permanent damage.
: The maximum stress the steel can withstand before breaking. The 420-540MPa range guarantees durability for high-stress parts like truck chassis.
: Measures ductility-18-22% means the steel can bend or stretch without cracking, critical for cold forming processes like stamping.
How Thickness Affects S350GD Mechanical Properties
While S350GD (1.0529) maintains consistent core properties across thicknesses, slight variations exist-especially for thicker gauges. The table below shows performance across common thickness ranges for galvanized steel plates:
| 1.0-3.0mm | 380-400 MPa | 440-540 MPa | 20-22% | |
| 3.0-6.0mm | 370-390 MPa | 430-520 MPa | 19-21% | Roof purlins, medium-load frames |
| 6.0-12.0mm | 360-380 MPa | 420-500 MPa | 18-20% |
Even at 12mm thickness, our S350GD (1.0529) galvanized steel plates maintain >=360MPa yield strength-meeting the EN 10346 standard and ensuring reliability for thick structural parts.
Mechanical Properties vs. Other Steel Grades
To understand S350GD (1.0529)'s advantages, compare its mechanical properties to related EN 10346 grades:
| S350GD (1.0529) | S320GD (1.0503) | DX51D (1.0330) | Key Advantage of S350GD | |
|---|---|---|---|---|
| >=350 MPa | >=320 MPa | >=235 MPa | 9% higher than S320GD, 49% higher than DX51D | |
| 410-550 MPa | 370-500 MPa | 315-500 MPa | ||
| Elongation (A80mm) | >=17% | >=20% | >=28% | |
| Impact Energy (0℃) | >=27 J | >=27 J | >=20 J | Same as S320GD, superior to DX51D for low-temp use |
S350GD (1.0529) strikes the perfect balance between strength and processability-outperforming S320GD (1.0503) in load-bearing capacity and DX51D (1.0330) in durability, making it ideal for heavy-duty structural applications.
Application of S350GD Mechanical Properties
Each mechanical property of S350GD (1.0529) supports specific application needs. Below's how they translate to real-world use:
1. Construction Industry
Yield Strength (360-400MPa): Supports roof weight, snow loads, and seismic forces for mid-to-high-rise buildings.
: Allows on-site bending of beams to fit custom structural designs, reducing waste.
Impact Energy (>=30J): Resists storm impacts, ensuring building safety in harsh weather.
2. Automotive Industry
Tensile Strength (420-540MPa): Withstands road vibrations and heavy payloads (e.g., 10-ton truck chassis).
Elongation (18-22%): Enables stamping into complex chassis components without cracking.
Hardness (130-150HV): Balances wear resistance and formability for long-lasting automotive parts.
3. Machinery Manufacturing
: Uniform properties across thicknesses ensure machinery frames (e.g., tractor bodies) handle rough field use without failure.
Corrosion Resistance + Strength: The galvanized coating (Z140/Z275) combined with 350MPa strength extends equipment service life to 15+ years.
S350GD galvanized steel-high yield strength, balanced tensile performance, and reliable formability-make it the top choice for structural, automotive, and machinery projects. GNEE Steel's strict testing ensures every batch meets EN 10346 standards, delivering consistent performance for your most demanding applications.
If you need to verify mechanical properties for your specific project, or require customized thicknesses of S350GD galvanized steel plates, our team is ready to assist. Contact GNEE Steel now to request a mechanical test report, get a personalized quotation, or discuss how S350GD's properties fit your project needs!
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