2S.143 Stainless Steels to BS 2S 137

2S.143 - Specification & Application

  • BS 2S 137 - Specification for high chromium-nickel corrosion-resisting steel bright bars (free machining) (880-1080 MPa: limiting ruling section 70 mm)

Specification for high chromium-nickel corrosion-resisting steel bright bars (free machining) (880-1080 MPa: limiting ruling section 70 mm)

Chemical composition(wt.%) of 2S.143 grade: to BS 2S 137

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.07
Si - 0.60
Mn - 1.00
P - 0.035
S - 0.025
Cr 13.20 14.70
Ni 5.00 5.80
Mo 1.20 2.00
Nb 0.10 0.40
Cu 1.20 2.00

2S.143 - Detail

Specification for high chromium-nickel corrosion-resisting steel bright bars (free machining) (880-1080 MPa: limiting ruling section 70 mm)

Mechanical properties of grade 2S.143 BS 2S 137

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)
426 (≥) 677 (≥) 43 24 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 134

Physical properties of grade 2S.143 BS 2S 137

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
814 (≥) 156 (≥) 24 23 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 132
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
213 897 321

Equivalent Grade

Equivalent Products

We can customize the production of 2S.143 grade, contact us for the best solution.
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