Valve Body Material and Applications
Valve Body Material
Casting Steel Valve Materials
| ASTM A216 WCB | Carbon Steel | Non-corrosive applications including water, oil and gases at temperatures between -20ºF (-30ºC) and +800ºF (+425ºC) |
| ASTM A352 LCB | Low Temp Carbon Steel | Low temperature applications to -50ºF (-46ºC). Not for use above +650ºF (+345ºC). |
| ASTM A352 LCC | Low Temp Carbon Steel | Low temperature applications to -50ºF (-46ºC). Not for use above +650ºF (+345ºC). |
| ASTM A352 LC1 | Low Temp Carbon Steel | Low temperature applications to -75ºF (-59ºC). Not for use above +650ºF (+340ºC). |
| ASTM A352 LC2 | Low Temp Carbon Steel | Low temperature applications to -100ºF (-73ºC). Not for use above +650ºF (+340ºC). |
| ASTM A352 LC3 | 3-1/2% Nickel Steel | Low temperature applications to -150ºF (-101ºC). Not for use above +650ºF (+340ºC). |
| ASTM A217 WC6 | 1-1/4% Chrome 1/2% Moly Steel | Non-corrosive applications including water, oil and gases at temperatures between -20ºF (-30ºC) and +1100ºF (+593ºC). |
| ASTM A217 C9 | 2-1/4% Chrome | Non-corrosive applications including water, oil and gases at temperatures between -20ºF (-30ºC) and +1100ºF (+593ºC). |
| ASTM A217 C5 | 5% Chrome 1/2% Moly | Mild corrosive or erosive applications as well as non-corrosive applications at temperatures between -20ºF (-30ºC) and +1200ºF (+649ºC). |
| ASTM A217 C12 | 9% Chrome 1% Moly | Mild corrosive or erosive applications as well as non-corrosive applications at temperatures between -20ºF (-30ºC) and +1200ºF (+649ºC). |
| ASTM A48 CA6NM | 12% Chrome Steel | Corrosive application at temperatures between -20ºF (-30ºC) and +900ºF (+482ºC). |
| ASTM A217 CA15 | 13% Chrome | Corrosive application at temperatures up to +1300ºF (+704ºC). |
| ASTM A351 CF8M | 316 SS | Corrosive or either extremely low or high temperature non-corrosive services between -450ºF (-268ºC) and +1200ºF (+649ºC). Above +800ºF (+425ºC) specify carbon content of 0.04% or greater. |
| ASTM 351 CF8C | 347 SS | Primarily for high temperature, corrosive applications between -450ºF (-268ºC) and +1200ºF (+649ºC). Above +1000ºF (+540ºC) specify carbon content of 0.04% or greater. |
| ASTM A351 CF8 | 304 SS | Corrosive or extremely high temperatures non-corrosive services between -450ºF (-268ºC) and +1200ºF (+649ºC). Above +800ºF (+425ºC) specify carbon content of 0.04% or greater. |
| ASTM A351 CF3 | 304L SS | Corrosive or non-corrosive services to +800ºF (+425ºC). |
| ASTM A351 CF3M | 316L SS | Corrosive or non-corrosive services to +800ºF (+425ºC) |
| ASTM A351 CN7M | Alloy 20 | Good resistance to hot sulfuric acid -51ºF (-46ºC) to +300ºF (+150ºC) |
| ASTM A990 CN3MCu*. | Alloy 20 (New*) | Good resistance to hot sulfuric acid to -51ºF (-46ºC) to 300ºF~ 800ºF (150ºC~ 425ºC). |
| ASTM 743 M3-35-1 | Monel | Weldable grade. Good resistance to corrosion by all common organic acids and salt water. Also highly resistant to most alkaline solutions to +750ºF (+400ºC). |
| ASTM A743 N-12M | Hastelloy B | Is well suited for handling hydrofluoric acid at all concentrations and temperatures. Good resistance to sulphuric and phosphoric acids to +1200ºF (+649ºC). |
| ASTM A743 CW-12M | Hastelloy C | Good resistance to strong oxidation conditions. Good properties at high temperatures. Good resistance to sulphuric and phosphoric acids to +1200ºF (+649ºC). |
| ASTM A743 CY-40 | Inconel | Very good for high temperature service. Good resistance to strongly corrosive media and atmosphere to +800ºF (+425ºC). |
| ASTM B62 | Bronze | Water, oil or gas: up to 400ºF (205ºC). Excellent for brine and seawater service. |
Common Forged Valve Materials
| ASTM Designation | Description | Common Service Recommendations Body/Bonnet Materia |
| A105(1) | Carbon Steel | General service such as oil, oil vapor, gas, steam and water at temperatures -20º to 1000ºF (-28ºC to 537ºC). |
| A350-LF2 CL1 | Low Temperature Carbon Steel | Suitable for temperatures -50ºF and not above 650ºF (-46ºC and not above 343ºC). |
| A182-F11 CL2 | 1-1/4 % Cr, 1/2% Mo Alloy Steel | For high temperatures from -20º to 1100ºF to minimise graphitisation (-28ºC to 593ºC). |
| A182-F22 CL3 (2) | 2-1/4 % Cr, 1% Mo Alloy Steel | For services requiring greater strength than F11 at temperatures from -20º to 1100ºF (-28ºC to 593ºC). |
| A182-F5 | 5% Cr, 1/2% Mo Alloy Steel | For corrosive/erosive refinery use requiring resistance at temperatures from -20º to 1100ºF (-28ºC to 593ºC). |
| A182-F9 | 9% Cr, 1% Mo Alloy Steel | For services involving media with higher sulphur content to combat oxidation to 1100ºF (593ºC). |
| A182-F304 | 18% Cr, 8% Ni Stainless Steel | For corrosive services and atmospheres from -450º to 1000ºF (-268º to 537ºC) |
| A182-F316 | 18% Cr, 8% Ni, 2% Mo Stainless Steel | For superior resistance to corrosion from -450º to 1000ºF (-268º to 537ºC). |
(1) Permissible but not recommended for prolonged use above 800ºF (425ºC)
(2) Consideration should be given to the possibility of excessive oxidation (scaling) when used above 1050ºF (563ºC)
Special Forged Material
| Material | Description | Service Recommendations |
| HASTELLOY | Nickel Alloy | Good high temperature properties. Excellent corrosion resistance in hydrochloric acid. |
| INCONEL INCOLOY | Nickel Alloy | For high temperature service. Used for nuclear applications |
| MONEL | Nickel-Copper Alloy | For corrosive service up to 842ºF (450ºC). Resistant to sea water, acids, alkalies. |
| TITANIUM | Transition Metal | Good resistance to corrosion together with low specific weight. |
| ASTM A182 F20 | Alloy 20 - Specialty Alloy | For corrosive service such as hot sulphuric acid. Resists -49º to 600ºF (-45º to 316ºC) |
| ASTM A182 F51 | Ferritic-Austenitic Stainless Steel | Very high strength, resistance to corrosion, pitting and stress corrosion in chloride media |
| ASTM A182 F44 | Austenitic Stainless Steel | Very high strength, high resistance to corrosion. |
Valve Trim Material
Common Trim Materials
| Trim Description | Application |
| 13% Cr, Type 410 Stainless Steel | For oil and oil vapors and general services with heat treated seats and wedges |
| 13% Cr, Type 410 plus Hardfacing | Universal trim for general service requiring long service life up to 1100ºF (593ºC).* |
| Type 316 Stainless | For liquids and gases which are corrosive to 410 Stainless Steel, up to 1000ºF (537ºC). |
| Monel | For corrosive service to 842ºF (450ºC) such as acids, alkalies, salt solutions, etc |
| Alloy 20 | For corrosive service such as hot acids -49º to 608ºF (-45º to 320ºC). |
| NACE | Specially treated 316 or 410 trim combined optionally with B7M Bolts and 2HM nuts to meet NACE MR-01-75 requirements. |
| Full Stellite | Full hard faced trim, suitable for abrasive & severe services up to 1200ºF (650ºC) |
