HastelloyC-4哈氏合金C-4鋼板

合金鋼板哈氏合金c-4是奧氏體低碳鎳鉬鉻合金。合金鋼板哈氏合金。c-4與其他早期開發(fā)的化學(xué)成分相似的合金的主要區(qū)別在于，低碳硅、低鐵、低鎢含量使合金鋼板哈氏合金c-4的化學(xué)成分在650-1040之間具有優(yōu)異的穩(wěn)定性，提高了晶體間的耐腐蝕性。在適當(dāng)?shù)闹圃鞐l件下，可避免焊縫熱影響區(qū)域的邊緣腐蝕敏感性和腐蝕。
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