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Description

USA AISI S40940 Specialsteel Ferritic Chromium Stainless Steel with Columbium and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: S40940
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel S40940 Ferrite AISI USA Ferritic Chromium Stainless Steel with Columbium

Chemical composition(mass fraction)(wt.%) of the S40940

C Mn Si P S Cr Ni Mo
≤0.06 ≤1.00 ≤1.00 ≤0.045 ≤0.04 10.50 -11.70 ≤0.50 ≤ ≥

Mechanical Properties of steel grade S40940

Yield
Rp0.2 (MPa)
Tensile
Rm (MPa)
Impact
KV/Ku (J)
Elongation
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
161 (≥) 792 (≥) 34 41 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 311

Physical Properties of steel grade S40940

Temperature
(°C)
Modulus of elasticity
(GPa)
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)
Specific thermal capacity
(J/kg·°C)
Specific electrical resistivity
(Ω mm²/m)
Density
(kg/dm³)
Poisson’s coefficient, ν
21 - -     0.43 -  
683 597 - 23.3 442   -  
443 - 14 11.2   312 311

Heat Treatment of steel grade S40940

Heat treated : 1134°C - 1399°C

Technological Curves of steel grade S40940

Cross Reference Table (Equivalent Grade) of S40940

Grade Standard Country Application
S40940
UNS S40940

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