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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 […]
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.
| 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 |
| 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 |
| Property | Value |
|---|---|
| Impact Toughness, J/cm² (at -20°C) | ≥ 27 |
| Elongation, % | ≥ 20 |
| Elastic Modulus, GPa | 210 |
✅ 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
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Steel circles |
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| Steel grades | Dimensions supplied (mm) |
| Steel strip 1.0570 / 17G1S | 20-90 : 205-605 |
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