S31640 Stainless Steels

S31640 - Specification & Application

Austenitic Chromium Nickel Molybdenum Stainless Steel (Columbium Stabilized)

Chemical composition(wt.%) of S31640 grade:

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.08
Si - 1.00
Mn - 2.00
P - 0.045
S - 0.03
Cr 16.0 18.0
Ni 10.0 14.0
Mo 2.00 3.00
N - 0.10
Carbon equivalent - 10xC≤b≤1.10

S31640 - Detail

Austenitic Chromium Nickel Molybdenum Stainless Steel (Columbium Stabilized)

Mechanical properties of grade S31640

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)
127 (≥) 262 (≥) 42 42 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 142

Physical properties of grade S31640

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
342 (≥) 142 (≥) 21 21 13 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
478 993 322

Equivalent Products

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