| Material name |
Material Grade |
Applicable working conditions | ||||
|
ANSI/ASTM Standard |
GB Standard |
|||||
| Casting | Forgings |
Casing |
Forgings |
Operating temperature ℃ |
Main applicable media | |
| carbon steel |
WCB |
A105 |
ZG2511 |
25/20Mh |
-29~427 |
Water, steam, air and petroleum products, etc. |
| alloy steel |
WC1 |
F1 |
/ |
/ |
-29~454 |
Steam, petroleum products (mainly used for high-temperature and high-pressure valves) |
|
C5 |
F5 |
ZGCr5Mo |
2Cr5Mo |
-29~650 |
||
|
WC6 |
F11 |
ZG20CrMoV |
15CrMo 12CrMoV |
-29~552 |
||
|
WC9 |
F22 |
ZG15Cr1Mo1V |
12Cr1MoV |
-29~595 |
||
| Low temperature carbon steel |
LCB |
LF1 |
/ |
/ |
-46~345 |
Steam, petroleum products (for cryogenic valves) |
| Chrome-nickel stainless steel |
CF8 |
304 |
ZG0Cr18Ni9Ti |
0Cr19Ni9 |
-196~800 |
Corrosive media such as nitric acid |
| Chromium-nickel ultra-low carbon stainless steel |
CF3 |
304L |
00Cr19Ni11 |
-196~425 |
||
| Chromium-nickel-molybdenum stainless steel |
CF8M |
316 |
ZG0Cr18Ni12Mo2Ti |
0Cr18Ni12Mo2Ti |
-196~800 |
Corrosive media such as acetic acid and urea |
| Chromium-nickel-molybdenum ultra-low carbon stainless steel |
CF3M |
316L |
00Cr17Ni14Mo2 |
-196~455 |
||
| Alloy 20 |
CN7M |
B462N08020 |
ZG0Cr20Ni29Cu4Mo2 |
0Cr20Ni35Mo3Cu4Nb |
-196~450 |
Sulfuric acid, phosphoric acid, hydrofluoric acid, dilute hydrochloric acid (mainly used for sulfuric acid) |
| Alloy 40 |
CD-4MCu |
S32550Fnalium255 |
ZG0Cr25Ni5Mo2Cu3 |
0Cr25Ni5Mo2Cu3 |
-196~450 |
Phosphoric acid, sulfuric acid, phosphates (mainly used for phosphoric acid) |
| Monel alloy |
M-30C |
No4400 No4405 k400 k500
|
NiCu28-2.5 -1.5 |
-196~580 |
Hydrofluoric acid, hydrochloric acid, sulfuric acid, chlorides, caustic soda (mainly used for hydrofluoric acid) | |
Jul 30, 2025
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Comparison of valve body materials between the ASTM and GB
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