S40940 Stainless Steels

S40940 - Specification & Application

Ferritic Chromium Stainless Steel with Columbium

Chemical composition(wt.%) of S40940 grade:

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.06
Mn - 1.00
Si - 1.00
P - 0.045
S - 0.04
Cr 10.50 11.70
Ni - 0.50
Mo - -

S40940 - Detail

Ferritic Chromium Stainless Steel with Columbium

Mechanical properties of grade S40940

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)
655 (≥) 861 (≥) 43 42 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 113

Physical properties of grade S40940

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
366 (≥) 539 (≥) 13 31 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 131
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
739 923 745

Equivalent Grade

Equivalent Products

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