Valve Material Reference
ASTM A182 Grade F316L / UNS S31603 Valve
Stainless Steel 316L (Low Carbon Forged)ASTM A182 Grade F316L is the low-carbon variant of Type 316 austenitic stainless steel, with a maximum carbon content of 0.
Form
Forged
Max Temp
+870°C (continuous) / +925°C (intermittent)
Min Temp
−196°C (−321°F)
Category
Stainless Steel
Chemical Composition — ASTM A182 Grade F316L / UNS S31603
Temperature Range
−196°C to +870°C (−321°F to +1600°F, continuous); max 925°C intermittent
Maximum Temperature
+870°C (continuous) / +925°C (intermittent)
Minimum Temperature
−196°C (−321°F)
Equivalent Grades — ASTM A182 Grade F316L / UNS S31603
| Standard | Equivalent Grade |
|---|---|
| UNS | S31603 |
| ASTM | A182 F316L (forged), A351 CF3M (cast equivalent) |
| EN | X2CrNiMo17-12-2 / 1.4404 |
| IS | SS 316L per IS 6528 |
Suitable Services
Pharmaceutical water systems: WFI, PW, HPW, clean steam
Food and beverage processing: dairy, beverages, edible oils
Chemical plant: organic acids, mild inorganic acids, solvents
Water treatment: demineralised water, RO permeate
Cryogenic service (to −196°C): LNG, LIN, LOX, LAr
Not Suitable For
Concentrated chloride solutions at elevated temperature — risk of SCC
Strong reducing acids (HCl, H₂SO₄ > 10%)
Temperatures above 870°C (continuous service)
Valve Body Applications
Pharmaceutical and biotech valve bodies (USP Class VI, 3-A compliant)
Food and beverage processing valve bodies (EHEDG, HACCP)
Chemical plant forged valve bodies for corrosive media
Water treatment and reverse osmosis plant valves
Trim Applications
Ball valve balls — polished SS316L (Ra ≤ 0.8 μm for pharmaceutical)
Gate valve seats and wedge faces
Globe valve stems and discs for chemical service
Typical Valve Types in ASTM A182 Grade F316L / UNS S31603
Ball valves: pharma and chemical, Class 150–600
Butterfly valves: sanitary, DN25–DN300
Diaphragm valves: pharmaceutical WFI and CIP service
Needle valves: instrumentation, Class 800–6000 psi
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