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Temperature limit table for valve body material

2014-08-13 Number of attention:

Valve body material selection should be based on the nature of the medium, working temperature and flow to determine (whether there are particles, two-phase flow, etc.). Under normal circumstances, users are required to put forward valve main material. Especially for special working conditions or harsh working conditions. In most cases, valve body material is the same as pipeline material or slightly higher than pipeline material.




Various valve body materials are cast iron, ductile iron, carbon steel, stainless steel and so on. Cast iron and ductile iron are suitable for low-pressure valves. Carbon steel has good temperature resistance up to 425 C. It is a general economic material. The following table is the temperature limit of general valve body materials for users'reference.

Name

Material Science


state

China Trademark Registration
American brand
temperature range
Standard number
Brand name
Standard number
Brand name
Gray cast iron
casting
GB/T 12226
HT200
ASTM A126
Gr.B
0~200℃
GB/T 12226
HT250
ASTM A126
Gr.C
Spheroidal graphite cast iron
casting
GB/T 12227
QT400-18
ASTM A536
60-40-18
0~350℃
GB/T 12227
QT450-10
ASTM A536
65-45-12
carbon steel
casting
GB/T 12229
WCB
ASTM A216
WCB
-29~425℃
casting
GB/T 12228
25
ASTM A105
GB/T 700
Q235A
ASTM A283
Gr.C
0~350℃
Stainless steel
casting
GB/T 12230
CF8
ASTM A351
CF8
-254~816℃
GB/T 12230
CF8M
ASTM A351
CF8M
GB/T 12230
CF3
ASTM A351
CF3
-254~425℃
GB/T 12230
CF3M
ASTM A351
CF3M
-254~450℃
ASTM A995
4A
-46~315℃
ASTM A995
6A
-101~315℃
casting
GB/T 1220
0Cr18Ni9
ASTM A182
F304
-254~816℃
GB/T 1220
0Cr17Ni12Mo2
ASTM A182
F316
GB/T 1220
00Cr19Ni10
ASTM A182
F304L
-254~425℃
GB/T 1220
00Cr17Ni14Mo2
ASTM A182
F316L
-254~450℃
GB/T 1220
022Cr22Ni5Mo3N
ASTM A182
S31803
-46~315℃
GB/T 1220
022Cr25Ni7Mo4N
ASTM A276
S32760
-101~315℃
Alloy steel
casting
JB/T 5263
WC6
ASTM A217
WC6
-29~593℃
JB/T 5263
WC9
ASTM A217
WC9
-29~593℃
JB/T 5263
C12A
ASTM A217
C12A
-29~650℃
casting
NB/T 47008
15CrMo
ASTM A182
F11
-29~593℃
NB/T 47008
12Cr2Mo1
ASTM A182
F22
-29~593℃
NB/T 47008
10Cr9Mo1VNb
ASTM A182
F91
-29~650℃
Low temperature steel
casting
JB/T 7248
LCB
ASTM A352
LCB
≥-46℃
JB/T 7248
LC1
ASTM A352
LC1
≥-59℃
JB/T 7248
LC2
ASTM A352
LC2
≥-73℃
JB/T 7248
LC3
ASTM A352
LC3
≥-101℃
casting
ASTM A350
LF2
≥-46℃
ASTM A350
LF5
≥-59℃
ASTM A350
LF9
≥-73℃
ASTM A350
LF3
≥-101℃