本阀门材料选用表是用来大致指出与某种流体介质接触而发生反应时,应如何选择适当的材料。表中的推荐不是绝对的,因为碳钢,铸铁,不锈钢,青铜,蒙乃尔合金,哈氏合金,钛,钴铬合金,沉淀钢等阀门材料的耐腐蚀性与流体的浓度、温度、压力和杂质等因素有关。因此,必须强调本表只能作为一个导则参考。
流体介质 |
阀门材料 |
|||||||||||||
碳钢 |
铸铁 |
302 |
316 |
青铜 |
蒙 |
哈 |
哈 |
不 |
钛 |
钴 |
416 |
440C |
17-4 |
|
乙醛 |
A |
A |
A |
A |
A |
A |
LL |
A |
A |
LL |
LL |
A |
A |
A |
乙炔 |
A |
A |
A |
A |
LL |
A |
A |
A |
A |
LL |
A |
A |
A |
A |
硝酸铵 |
A |
C |
A |
A |
C |
C |
A |
A |
A |
A |
A |
C |
B |
LL |
沥青 |
A |
A |
A |
A |
A |
A |
A |
A |
A |
LL |
A |
A |
A |
A |
丁烷 |
A |
A |
A |
A |
A |
A |
A |
A |
A |
LL |
A |
A |
A |
A |
二氧化碳(湿的) |
C |
C |
A |
A |
A |
A |
A |
A |
A |
A |
A |
A |
A |
A |
氯,气体(湿的) |
C |
C |
C |
C |
C |
C |
C |
B |
C |
A |
B |
C |
C |
C |
硫酸铜 |
C |
C |
B |
B |
B |
C |
LL |
A |
A |
A |
LL |
A |
A |
A |
氯乙烷 |
C |
C |
A |
A |
A |
A |
A |
A |
A |
A |
A |
B |
B |
LL |
甲酸 |
LL |
C |
B |
B |
A |
A |
A |
A |
A |
C |
B |
C |
C |
B |
葡萄糖 |
A |
A |
A |
A |
A |
A |
A |
A |
A |
A |
A |
A |
A |
A |
氢 |
A |
A |
A |
A |
A |
A |
A |
A |
A |
A |
A |
A |
A |
A |
甲醇 |
A |
A |
A |
A |
A |
A |
A |
A |
A |
A |
A |
A |
B |
A |
油酸 |
C |
C |
A |
A |
B |
A |
A |
A |
A |
A |
A |
A |
B |
LL |
磷酸(无气的) |
C |
C |
A |
A |
C |
B |
A |
A |
A |
B |
A |
C |
C |
LL |
丙烷 |
A |
A |
A |
A |
A |
A |
A |
A |
A |
A |
A |
A |
A |
A |
氯化钠 |
C |
C |
B |
B |
A |
A |
A |
A |
A |
A |
A |
B |
B |
B |
氯化亚锡 |
B |
B |
C |
A |
C |
B |
A |
A |
A |
A |
LL |
C |
C |
LL |
三氧化碳(干的) |
A |
A |
A |
A |
A |
A |
B |
A |
A |
A |
A |
B |
B |
LL |
三氯乙烯 |
B |
B |
B |
A |
A |
A |
A |
A |
A |
A |
A |
B |
B |
LL |
海水 |
B |
B |
B |
B |
A |
A |
A |
A |
A |
A |
A |
C |
C |
A |
符号:A - 能够或正被成功应用
B - 应用过程应注意
C - 不能应用
LL - 缺乏资料
摘自《调节阀手册》第二版式 美国仪表学会 J.W.哈奇森 主编
材料中 — 英文对照表
蒙乃尔合金 — Monel
哈氏合金B(C) — Hastelloy“B”、(“C”)
不锈钢﹟20 — Durimet20
钴—铬合金﹟6 — Alloy6(Co-Cr)