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Russia GOST 18H3MV Heat-resistant steel. Specifications and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 18H3MV / 18H3MV
Category Grade Standard Region/Area Standard Content
Metals 18H3MV GOST 20072 Russia Heat-resistant steel. Specifications

Chemical composition(mass fraction)(wt.%) of the 18H3MV

Element Min Max Similar
W 0.5000 0.8000 -
V 0.0500 0.1500 -
Ti - 0.0300 -
Si 0.1700 0.3700 -
S - 0.0250 -
P - 0.0300 -
Ni - 0.3000 -
Mo 0.5000 0.7000 -
Mn 0.2500 0.5000 -
Cu - 0.2000 -
Cr 2.5000 3.0000 -
C 0.1500 0.2000 -

Mechanical Properties of steel grade 18H3MV

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)
563 (≥) 133 (≥) 41 33 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 333

Physical Properties of steel grade 18H3MV

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 - -     0.34 -  
152 169 - 43.3 214   -  
972 - 31 13.2   424 311

Heat Treatment of steel grade 18H3MV

Heat treated : 1217°C - 1417°C

Technological Curves of steel grade 18H3MV

Cross Reference Table (Equivalent Grade) of 18H3MV

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