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Russia GOST 30HNML Steel castings. General specifications and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 30HNML / 30HNML
Category Grade Standard Region/Area Standard Content
Metals 30HNML GOST 977 Russia Steel castings. General specifications

Chemical composition(mass fraction)(wt.%) of the 30HNML

Element Min Max Similar

Mechanical Properties of steel grade 30HNML

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)
221 (≥) 653 (≥) 24 11 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 442

Physical Properties of steel grade 30HNML

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
33 - -     0.31 -  
533 359 - 14.3 213   -  
368 - 41 33.2   341 221

Heat Treatment of steel grade 30HNML

Heat treated : 1744°C - 1871°C

Technological Curves of steel grade 30HNML

Cross Reference Table (Equivalent Grade) of 30HNML

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