S30940 Stainless Steels

S30940 - Specification & Application

Austenitic Chromium Nickel Columbium Heat Resisting Stainless Steel

Chemical composition(wt.%) of S30940 grade:

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.08
Si - 1.00
Mn - 2.00
P - 0.04
S - 0.03
Cr 22.0 24.0
Ni 12.0 16.0
Nb+Ta - 1.10

S30940 - Detail

Austenitic Chromium Nickel Columbium Heat Resisting Stainless Steel

Mechanical properties of grade S30940

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)
411 (≥) 168 (≥) 33 14 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 412

Physical properties of grade S30940

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
811 (≥) 851 (≥) 11 43 42 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
376 186 279

Equivalent Products

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