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A105vsP250GH
Comparison of ASTM A105 and EN P250GH (1.0460) forging carbon steels for flange and fitting applications.
Химический состав
| Элемент | A105 | P250GH |
|---|---|---|
| C | max 0.35% | max 0.21% |
| Si | 0.10–0.35% | max 0.40% |
| Mn | 0.60–1.05% | 0.50–1.20% |
| Cr | max 0.30% | max 0.30% |
| Mo | max 0.12% | max 0.08% |
| P | max 0.035% | max 0.025% |
| S | max 0.040% | max 0.015% |
Механические свойства
| Свойство | A105 | P250GH |
|---|---|---|
| Tensile Strength (MPa) | min 485 | 400–550 |
| Yield Strength (MPa) | min 250 | min 250 |
| Elongation (%) | min 22 | min 22 |
| Hardness (HB) | max 187 | max 160 |
| Impact (J) at 20°C | – | min 27 |
Применение
- Flange and fitting forgings
- Pressure vessels
- Pipe connection elements
- Valve bodies
- Petrochemical plants
Стандарты
A105
- ASTM A105/A105M
- ASME SA-105
P250GH
- EN 10222-2
- EN 10273
Эквиваленты марок
| Система | A105 | P250GH |
|---|---|---|
| ASTM | A105 | – |
| EN | – | P250GH |
| DIN (W.Nr.) | – | 1.0460 |
| JIS | SFVC1 / SF440 | – |