310S Stainless Steel

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310S Stainless Steel has excellent resistance to oxidation under constant temperatures to 2000°F.

Cyclic conditions reduce its oxidation resistance, and a maximum operating temperature of 1900°F is generally recommended if cycling is involved.
Having a lower coefficient of expansion than most 300 stainless steels, 310S may be used in operations involving moderately severe thermal cycling, such as rapid air cooling. It is not usually recommended for liquid quenching. Although 310S has less resistance to absorption of carbon and nitrogen than the higher alloys such as 330 and 333, it is widely used in moderately carburizing atmospheres such as encountered in petro-chem plants.
Because of ts high chromium and medium nickel contents, 310S may be used in atmospheres containng moderate amounts of sulfur.
Specifications - Stainless Steel 310S
  • ASTM: A312, A403, A182
  • ASME: SA312, SA403, SA182
Chemical Composition - Stainless Steel 310S

CCrMnMoNiPSSi
Max  MaxMax   MaxMaxMax
0.08%24% - 26%2.0%0.75%19% - 22%0.045%0.03%0.75%
Typical Mechanical Properties- Stainless Steel 310S
AlloyUltimate Tensile Strength (ksi)Yield Strength (ksi)Elongation %Reduction of Area (%)Hardness HRB
Type 310
Sheet (Sol Trtd)
AMS 5521		75-1003040-95 max
Type 310
Bar (Sol Trtd)
AMS 5651		----187 max
Design Features - Stainless Steel 310S
  • Austenitic stainless steel with excellent high temperature oxidation resistance.
  • Good for continuous exposure to 2100°F, intermittent service to 1900°F.
  • Better elevated temperature creep strength than the 18-8 grades.
  • Good resistance to both carburizing and reducing environments.
  • General corrosion resistance better than Types 304 and 309.
  • May be susceptibe to chloride stress corrosion cracking. 
  • Ease of fabrication.
Typical Applications - Stainless Steel 310S
  • Sulfur bearing gas atmospheres
  • Molten salt applications
  • Heat exchangers
  • Heat recuperator tubing
Tensile Requirements - Stainless Steel 310S
Tensile Strength (KSI): 75
Yield Strength (KSI): 30

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