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S355J2vsA572 Gr.50
Comparison of EN S355J2 (1.0577) and ASTM A572 Grade 50 high-strength low-alloy structural steels.
Химический состав
| Элемент | S355J2 | A572 Gr.50 |
|---|---|---|
| C | max 0.20% | max 0.23% |
| Si | max 0.55% | max 0.40% |
| Mn | max 1.60% | max 1.35% |
| P | max 0.025% | max 0.030% |
| S | max 0.025% | max 0.030% |
| Nb | max 0.05% | max 0.05% |
| V | max 0.12% | max 0.15% |
Механические свойства
| Свойство | S355J2 | A572 Gr.50 |
|---|---|---|
| Tensile Strength (MPa) | 470–630 | min 450 |
| Yield Strength (MPa) | min 355 | min 345 |
| Elongation (%) | min 20 | min 18 |
| Impact (J) at -20°C | min 27 | min 20 (at 21°C) |
Применение
- Structural steel construction
- Bridge and building supports
- Pipe supports and steel structures
- Offshore platforms
- Heavy machinery chassis
Стандарты
S355J2
- EN 10025-2
- EN 10210-1
A572 Gr.50
- ASTM A572/A572M
Эквиваленты марок
| Система | S355J2 | A572 Gr.50 |
|---|---|---|
| EN | S355J2 | – |
| DIN (W.Nr.) | 1.0577 | – |
| ASTM | – | A572 Gr.50 |
| JIS | SM490B | SM490B |