本閥門材料選用表是用來大致指出與某種流體介質(zhì)接觸而發(fā)生反應(yīng)時,應(yīng)如何選擇適當(dāng)?shù)牟牧?。表中的推薦不是絕對的,因為碳鋼,鑄鐵,不銹鋼,青銅,蒙乃爾合金,哈氏合金,鈦,鈷鉻合金,沉淀鋼等閥門材料的耐腐蝕性與流體的濃度、溫度、壓力和雜質(zhì)等因素有關(guān)。因此,必須強(qiáng)調(diào)本表只能作為一個導(dǎo)則參考。
流體介質(zhì) |
閥門材料 |
|||||||||||||
碳鋼 |
鑄鐵 |
302 |
316 |
青銅 |
蒙 |
哈 |
哈 |
不 |
鈦 |
鈷 |
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 |
硝酸銨 |
A |
C |
A |
A |
C |
C |
A |
A |
A |
A |
A |
C |
B |
LL |
瀝青 |
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(濕的) |
C |
C |
A |
A |
A |
A |
A |
A |
A |
A |
A |
A |
A |
A |
氯,氣體(濕的) |
C |
C |
C |
C |
C |
C |
C |
B |
C |
A |
B |
C |
C |
C |
硫酸銅 |
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 |
氫 |
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(無氣的) |
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 |
氯化鈉 |
C |
C |
B |
B |
A |
A |
A |
A |
A |
A |
A |
B |
B |
B |
氯化亞錫 |
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 |
符號:A - 能夠或正被成功應(yīng)用
B - 應(yīng)用過程應(yīng)注意
C - 不能應(yīng)用
LL - 缺乏資料
摘自《調(diào)節(jié)閥手冊》第二版式 美國儀表學(xué)會 J.W.哈奇森 主編
材料中 — 英文對照表
蒙乃爾合金 — Monel
哈氏合金B(yǎng)(C) — Hastelloy“B”、(“C”)
不銹鋼﹟20 — Durimet20
鈷—鉻合金﹟6 — Alloy6(Co-Cr)