310S31 Stainless Steels to BS 1503

310S31 - Specification & Application

  • BS 1503 - Specification for steel forgings for pressure purposes
  • BS 6258 - Specification for hollow steel bars for machining
  • BS 970-1 - Specification for wrought steels for mechanical and allied engineering purposes. General inspection and testing procedures and specific requirements for carbon, carbon manganese, alloy and stainless steels
  • BS 970-3 - Specification for wrought steels for mechanical and allied engineering purposes. Bright bars for general engineering purposes

Specification for wrought steels for mechanical and allied engineering purposes. Bright bars for general engineering purposes

Chemical composition(wt.%) of 310S31 grade: to BS 1503

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.15
Si - 1.50
Mn - 2.00
P - 0.045
S - 0.03
Cr 24.00 26.00
Mo - -
Ni 19.00 22.00

310S31 - Detail

Specification for wrought steels for mechanical and allied engineering purposes. Bright bars for general engineering purposes

Mechanical properties of grade 310S31 BS 1503

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)
258 (≥) 822 (≥) 24 24 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 114

Physical properties of grade 310S31 BS 1503

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
183 (≥) 549 (≥) 22 12 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 123
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
928 543 622

Equivalent Grade

Equivalent Products

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