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China GB 22g 锅炉用碳素钢和低合金钢钢板 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 22g / 22g
Category Grade Standard Region/Area Standard Content
Metals 22g GB 713 China 锅炉用碳素钢和低合金钢钢板

Chemical composition(mass fraction)(wt.%) of the 22g

Element Min Max Similar
Si 0.1700 0.3700 -
S - 0.0350 -
P - 0.0350 -
Mn 0.6000 0.9000 -
C - 0.2600 -

Mechanical Properties of steel grade 22g

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)
691 (≥) 888 (≥) 33 33 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 421

Physical Properties of steel grade 22g

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
14 - -     0.44 -  
976 376 - 41.3 233   -  
247 - 44 42.2   334 214

Heat Treatment of steel grade 22g

Heat treated : 1522°C - 1744°C

Technological Curves of steel grade 22g

Cross Reference Table (Equivalent Grade) of 22g

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