EStE315 High-Strength Structural Steel Coils
Engineered for Durable Construction & Load-Bearing Frameworks
EStE315 structural steel combines balanced strength and formability, making it ideal for building frameworks, industrial platforms, and machinery bases. Certified to EN 10025-6 standards, it performs reliably in temperatures from -30°C to +250°C with minimal thermal distortion.
Technical Specifications
Chemical Composition (Max Wt%)
| Element | C | Si | Mn | P | S | N | Al | Cr | Cu | Mo | Ni | Nb | Ti | V | Nb+Ti+V |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Content | 0.16 | 0.45 | 1.50 | 0.025 | 0.015 | 0.020 | 0.020 | 0.30 | 0.20 | 0.08 | 0.30 | 0.03 | 0.05 | 0.05 | 0.05 |
Key Features:
- Ultra-low sulfur (0.015%) prevents weld cracking^[EN 1011-2]^
- Controlled manganese (1.50%) ensures crack resistance under dynamic loads^[ASTM A6]^
- Micro-alloyed with Nb/V for grain refinement and impact toughness^[ISO 4885]^
Mechanical Properties
| Thickness (mm) | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Bend Test (Mandrel Diameter) |
|---|---|---|---|---|
| ≤70 | 440–560 | 315 | ≥23 | 2.5×t |
| 70–85 | 430–550 | 305 | ≥22 | 3.0×t |
| 85–150 | 400–520 | 255 | ≥19 | 4.0×t |
Performance Highlights:
- 560 MPa tensile strength outperforms S235JR/S355JO grades^[EN 10025]^
- 23% elongation allows tight-radius bending (1D–3D radii)
- Z25 through-thickness certification for critical welded joints^[EN 10164]^
Applications
- Construction: Warehouse trusses, staircases, and safety railings.
- Industrial Machinery: Conveyor frames, hydraulic press bases.
- Transportation: Trailer chassis, crane components.
Competitive Advantages
- Cost Efficiency: 15% lower carbon content vs. EStE355 grades.
- Machinability: 160–200 HB hardness optimizes drilling/CNC speeds.
- Corrosion Resistance: Optional hot-dip galvanizing (G60–G90).
Certifications & Logistics
- Mandatory: EN 10204 3.1 mill certificates + CE marking
- Optional: Charpy V-notch testing (-20°C), PMI verification
- Delivery: Shot-blasted (Sa2.5) or oiled surface, edge-protected coils
Logical Connectors:
- Comparison: While EStE355 suits heavy loads, EStE315 optimizes cost for medium-stress applications.
- Example: For instance, warehouse builders prioritize Z25 certification.
- Cause-Effect: Reduced carbon content lowers machining costs by 12–18%.
Request technical datasheets or project quotes today!
MOQ 12MT. Available in 1,200–3,000mm widths. Standard lead time: 10–18 days.
Packing And Delivery
