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Russia GOST 18HGT Structural alloy steel bars. Specifications and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 18HGT / 18HGT
Category Grade Standard Region/Area Standard Content
Metals 18HGT GOST 4543 Russia Structural alloy steel bars. Specifications

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

Element Min Max Similar

Mechanical Properties of steel grade 18HGT

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)
222 (≥) 165 (≥) 24 41 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 224

Physical Properties of steel grade 18HGT

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
41 - -     0.24 -  
288 566 - 12.3 223   -  
724 - 12 32.2   234 141

Heat Treatment of steel grade 18HGT

Heat treated : 1163°C - 1489°C

Technological Curves of steel grade 18HGT

Cross Reference Table (Equivalent Grade) of 18HGT

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