Steel Flat Bar 1.0570 / S355J2 / 17Г1С
Steel flat bar 1.0570 (S355J2 / 17Г1С) is a high-quality low-alloy structural steel with increased strength and impact toughness. It features excellent weldability and high resistance to mechanical stress, making it an ideal choice for construction, mechanical engineering, and metal structures.
Technical Specifications
| Parameter | Value |
|---|---|
| Steel Grade | 1.0570 / S355J2 / 17Г1С |
| Standard | EN 10025-2, GOST 19281-89 |
| Tensile Strength, MPa | 470-630 |
| Yield Strength, MPa | ≥ 355 |
| Hardness (HB) | ≤ 180 |
| Operating Temperature Range, °C | -50 to +450 |
Chemical Composition (%)
| Element | C | Si | Mn | P | S | Cr | Mo | Ni | Cu |
|---|---|---|---|---|---|---|---|---|---|
| Content | ≤ 0.20 | ≤ 0.55 | 1.00-1.70 | ≤ 0.025 | ≤ 0.025 | ≤ 0.30 | ≤ 0.10 | ≤ 0.55 | ≤ 0.55 |
Mechanical Properties
| Property | Value |
|---|---|
| Impact Toughness, J/cm² (at -20°C) | ≥ 27 |
| Elongation, % | ≥ 20 |
| Elastic Modulus, GPa | 210 |
Applications
- Construction and metal structures
- Manufacturing of supports and bridge structures
- Mechanical and shipbuilding industries
- Pipelines and tanks for liquid and gas transportation
Advantages of 1.0570 (S355J2 / 17Г1С) Steel
✅ High strength and impact toughness
✅ Excellent weldability
✅ Good corrosion resistance
✅ Increased ductility and durability
Steel flat bar 1.0570 (S355J2 / 17Г1С) is an optimal choice for structures operating under high loads and low temperatures.
Steel strip delivery form 1.0570 / 17Г1С
Steel circles | |
| Steel grades | Dimensions supplied (mm) |
| Steel strip 1.0570 / 17G1S | 20-90 : 205-605 |
