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Russia GOST 22K 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: 22K / 22K
Category Grade Standard Region/Area Standard Content
Metals 22K 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 22K

Element Min Max Similar
Si 0.1700 0.4000 -
S - 0.0350 -
P - 0.0400 -
Ni - 0.3000 -
Mn 0.7000 1.0000 -
Cu - 0.3000 -
Cr - 0.3000 -
C 0.1900 0.2600 -

Mechanical Properties of steel grade 22K

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)
464 (≥) 117 (≥) 22 33 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 223

Physical Properties of steel grade 22K

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
44 - -     0.23 -  
772 729 - 34.3 222   -  
226 - 43 22.2   312 322

Heat Treatment of steel grade 22K

Heat treated : 1223°C - 1513°C

Technological Curves of steel grade 22K

Cross Reference Table (Equivalent Grade) of 22K

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