310 Stainless Steels to MIL-S-862B

310 - Specification & Application

  • MIL-S-862B - Steel bar, corrosion resisting, and steel billet, corrosion resisting, reforging application

Steel bar, corrosion resisting, and steel billet, corrosion resisting, reforging application

Chemical composition(wt.%) of 310 grade: to MIL-S-862B

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.25
Si - 1.50
Mn - 2.00
P - 0.045
S - 0.03
Cr 24.00 26.00
Ni 19.00 22.00
Mo - 1.00
Cu - 1.00

310 - Detail

Steel bar, corrosion resisting, and steel billet, corrosion resisting, reforging application

Mechanical properties of grade 310 MIL-S-862B

Proof strength
Rp0.2 (MPa)
Tensile strength
Rm (MPa)
Impact energy
KV (J)
Elongation at fracture
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
218 (≥) 284 (≥) 31 12 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 424

Physical properties of grade 310 MIL-S-862B

Property Density
kg/dm3
Temperature T
°C/F
Specific heat
J / kgK
Thermal conductivity
W/mK
Electric resistance
µΩ·cm
Modulus of elasticity
kN/mm2
Expansion rate
354 (≥) 699 (≥) 41 41 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 142
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
154 165 777
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