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27HGSNMDTL

Russia GOST 27HGSNMDTL Cold-resistant and wear-resistant steel castings. General specifications and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 27HGSNMDTL / 27HGSNMDTL
Category Grade Standard Region/Area Standard Content
Metals 27HGSNMDTL GOST 21357 Russia Cold-resistant and wear-resistant steel castings. General specifications

Chemical composition(mass fraction)(wt.%) of the 27HGSNMDTL

Element Min Max Similar
Ti 0.0300 0.0700 -
Si 0.7000 1.3000 -
RE 0.0200 0.0500 -
Ni 0.7000 1.2000 -
Mo 0.1000 0.3000 -
Mn 0.9000 1.5000 -
Cu 0.3000 0.5000 -
Cr 0.7000 1.3000 -
C 0.2200 0.3100 -

Mechanical Properties of steel grade 27HGSNMDTL

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)
397 (≥) 334 (≥) 33 32 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 422

Physical Properties of steel grade 27HGSNMDTL

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
32 - -     0.13 -  
914 591 - 14.3 232   -  
858 - 21 32.2   344 423

Heat Treatment of steel grade 27HGSNMDTL

Heat treated : 1933°C - 1992°C

Technological Curves of steel grade 27HGSNMDTL

Cross Reference Table (Equivalent Grade) of 27HGSNMDTL

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