合金钢板哈氏合金c-4是奥氏体低碳镍钼铬合金。合金钢板哈氏合金。C-4与其他早期开发的化学成分相似的合金的主要区别在于,低碳硅、低铁、低钨含量使合金钢板哈氏合金C-4的化学成分在650-1040之间具有优异的稳定性,提高了晶体间的耐腐蚀性。在适当的制造条件下,可避免焊缝热影响区域的边缘腐蚀敏感性和腐蚀。
ALLOY STEEL PIPE HastelloyC-4 Heat treatment of finished parts
Condition as supplied by AWI | Type | Temperature | Time | Cooling |
---|---|---|---|---|
Annealed or Spring Temper | Stress Relieve | 400 – 450 °C (750 – 840 °F) | 2 Hr | Air |
ALLOY STEEL PIPE HastelloyC-4 Alloy Details
Density | Melting Point | Coefficient of Expansion | Modulus of Rigidity | Modulus of Elasticity |
---|---|---|---|---|
8.64 g/cm³ | 1399 °C | 10.8 μm/m °C (20 – 100 °C) | 81.2 kN/mm² | 212.4 kN/mm² |
0.312 lb/in³ | 2550 °F | 6.0 x 10-6in/in °F (70 – 212 °F) | 11777 ksi | 30807 ksi |
ALLOY STEEL PIPE HastelloyC-4 Chemical Composition
Element | Min % | Max % |
---|---|---|
Cr | 14.00 | 18.00 |
Mo | 14.00 | 17.00 |
Fe | – | 3.00 |
C | – | 0.015 |
Si | – | 0.08 |
Co | – | 2.00 |
Mn | – | 1.00 |
P | – | 0.04 |
S | – | 0.03 |
Ti | – | 0.70 |
Ni |
Balance |
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