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Russia GOST 38HN3MA Structural alloy steel bars. Specifications and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 38HN3MA / 38HN3MA
Category Grade Standard Region/Area Standard Content
Metals 38HN3MA GOST 4543 Russia Structural alloy steel bars. Specifications

Chemical composition(mass fraction)(wt.%) of the 38HN3MA

Element Min Max Similar

Mechanical Properties of steel grade 38HN3MA

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)
676 (≥) 736 (≥) 34 12 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 333

Physical Properties of steel grade 38HN3MA

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
13 - -     0.23 -  
775 563 - 23.3 311   -  
756 - 14 14.2   421 113

Heat Treatment of steel grade 38HN3MA

Heat treated : 1738°C - 1515°C

Technological Curves of steel grade 38HN3MA

Cross Reference Table (Equivalent Grade) of 38HN3MA

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