286S31 Stainless Steels to BS 1506

286S31 - Specification & Application

  • BS 1506 - Specification for carbon, low alloy and stainless steel bars and billets for bolting material to be used in pressure retaining applications

Specification for carbon, low alloy and stainless steel bars and billets for bolting material to be used in pressure retaining applications

Chemical composition(wt.%) of 286S31 grade: to BS 1506

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.08
Si - 1.00
Mn - 2.00
P - 0.045
S - 0.030
Cr 13.50 16.00
Mo 1.00 1.50
Ni 24.00 27.00
Al 0.01 0.35
V 0.10 0.50
Ti 1.90 2.30
B 0.003 0.010
Pb - 0.005

286S31 - Detail

Specification for carbon, low alloy and stainless steel bars and billets for bolting material to be used in pressure retaining applications

Mechanical properties of grade 286S31 BS 1506

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)
377 (≥) 383 (≥) 42 41 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 442

Physical properties of grade 286S31 BS 1506

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
949 (≥) 684 (≥) 34 33 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 241
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
198 155 346

Equivalent Grade

Equivalent Products

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