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757 (X 4 CrNiMo 17 12 3)

Finland SFS 757(X4CrNiMo17123) Austenitic stainless steel 757. X 4 CrNiMo 17 12 3 and Mechanical Properties, Chemical Element, Cross Reference.

Category Grade Standard Region/Area Standard Content
Metals 757 (X 4 CrNiMo 17 12 3) SFS 757 Finland Austenitic stainless steel 757. X 4 CrNiMo 17 12 3

Chemical composition(mass fraction)(wt.%) of the 757 (X 4 CrNiMo 17 12 3)

Element Min Max Similar

Mechanical Properties of steel grade 757 (X 4 CrNiMo 17 12 3)

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)
379 (≥) 139 (≥) 34 12 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 142

Physical Properties of steel grade 757 (X 4 CrNiMo 17 12 3)

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
32 - -     0.33 -  
294 675 - 31.3 314   -  
668 - 32 32.2   444 232

Heat Treatment of steel grade 757 (X 4 CrNiMo 17 12 3)

Heat treated : 1256°C - 1861°C

Technological Curves of steel grade 757 (X 4 CrNiMo 17 12 3)

Cross Reference Table (Equivalent Grade) of 757 (X 4 CrNiMo 17 12 3)

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