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Czech CSN 422739 Chromium steel 42 2739 for castings and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 422739 / 422739
Category Grade Standard Region/Area Standard Content
Metals 422739 CSN 42 2739 Czech Chromium steel 42 2739 for castings

Chemical composition(mass fraction)(wt.%) of the 422739

Element Min Max Similar

Mechanical Properties of steel grade 422739

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)
328 (≥) 355 (≥) 43 14 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 124

Physical Properties of steel grade 422739

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 - -     0.22 -  
476 572 - 33.3 411   -  
226 - 24 31.2   131 422

Heat Treatment of steel grade 422739

Heat treated : 1441°C - 1284°C

Technological Curves of steel grade 422739

Cross Reference Table (Equivalent Grade) of 422739

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