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Russia GOST 12H1MF Rolled carbon low-alloy and alloy steel sheets and plates for boilers and pressure vessels. Specifications and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 12H1MF / 12H1MF
Category Grade Standard Region/Area Standard Content
Metals 12H1MF GOST 5520 Russia Rolled carbon low-alloy and alloy steel sheets and plates for boilers and pressure vessels. Specifications

Chemical composition(mass fraction)(wt.%) of the 12H1MF

Element Min Max Similar
V 0.1500 0.3000 -
Si 0.1700 0.3700 -
S - 0.0250 -
P - 0.0300 -
Ni - 0.3000 -
N - 0.0080 -
Mo 0.2500 0.3500 -
Mn 0.4000 0.7000 -
Cu - 0.2000 -
Cr 0.9000 1.2000 -
C 0.0800 0.1500 -
As - 0.0800 -
Al - 0.0200 -
W - 0.3000 -
V 0.1500 0.3000 -
Ti - 0.0300 -
Si 0.1700 0.3700 -
S - 0.0250 -
P - 0.0300 -
Ni - 0.3000 -
Mo 0.2500 0.3500 -
Mn 0.4000 0.7000 -
Cu - 0.2000 -
Cr 0.9000 1.2000 -
C 0.1000 0.1500 -

Mechanical Properties of steel grade 12H1MF

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)
357 (≥) 547 (≥) 33 11 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 424

Physical Properties of steel grade 12H1MF

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 - -     0.21 -  
125 271 - 34.3 344   -  
175 - 21 13.2   121 411

Heat Treatment of steel grade 12H1MF

Heat treated : 1939°C - 1731°C

Technological Curves of steel grade 12H1MF

Cross Reference Table (Equivalent Grade) of 12H1MF

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