Valve Material Reference
ASTM A351 CF8 Valve
Cast 304 Stainless Steel (CF8)ASTM A351 Grade CF8 is the cast austenitic 18-8 stainless steel (304 equivalent) used for valve bodies in general-purpose, food-grade, and mild chemical service.
Form
Cast
Max Temp
+538°C (+1000°F)
Min Temp
−254°C (−425°F) for cryogenic service
Category
Stainless Steel
What is ASTM A351 CF8?
ASTM A351 CF8 (Cast 304 Stainless Steel (CF8)) is a stainless steel valve material. ASTM A351 Grade CF8 is the cast austenitic 18-8 stainless steel (304 equivalent) used for valve bodies in general-purpose, food-grade, and mild chemical service. Temperature range: −254°C to +538°C (−425°F to +1000°F).
- Form:
- cast
- Max Temp:
- +538°C (+1000°F)
- Min Temp:
- −254°C (−425°F) for cryogenic service
Chemical Composition - ASTM A351 CF8
Temperature Range
−254°C to +538°C (−425°F to +1000°F)
Maximum Temperature
+538°C (+1000°F)
Minimum Temperature
−254°C (−425°F) for cryogenic service
Vajra Industrial Solutions manufactures and supplies valves in ASTM A351 CF8 (Cast 304 Stainless Steel (CF8)) for food and beverage industry - dairy, brewery, beverage filling lines, with EN 10204 3.1 material traceability on every order.
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Equivalent Grades - ASTM A351 CF8
| Standard | Equivalent Grade |
|---|---|
| ASTM | A351 CF8 (cast) / A182 F304 (forged equivalent) |
| UNS | J92600 (CF8) |
| EN | 1.4308 (GX5CrNi19-10) |
| BS | 304C15 |
Suitable Services
Food and beverage industry - dairy, brewery, beverage filling lines
Pharmaceutical process water and CIP systems
Marine (non-chloride seawater service) - deck service, freshwater systems
Mild chemical service - weak acids, alkalis, alcohols, solvents
General stainless service where CF8M (316) is over-specified
Not Suitable For
Seawater or high-chloride service - pitting corrosion; use CF8M (316) or higher
Strong acid service (HCl, H₂SO₄) - nickel alloys required
High-temperature oxidising above 800°C - use high-alloy HH or HK grade
Valve Body Applications
Gate valve bodies (large bore DN50–DN600) in general-purpose stainless service
Globe valve bodies in process chemical and steam service
Check valve bodies - swing and lift type in stainless service
Strainer bodies in stainless service (food, pharmaceutical, mild chemical)
Trim Applications
Trim sets (seats, stems, discs) for CF8 valve assemblies
Back-seat bushings and bonnet flanges
Typical Valve Types in ASTM A351 CF8
Ball valves
Gate valves
Globe valves
Check valves
Strainers
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We supply ASTM A351 CF8 (Cast 304 Stainless Steel (CF8)) valves with full certification documentation — EN 10204 3.1/3.2 MTCs and hydrotest certs as standard.