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Global 企业标准 30Ch and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 30Ch / 30Ch
Category Grade Standard Region/Area Standard Content
Metals 30Ch -- Global

Chemical composition(mass fraction)(wt.%) of the 30Ch

Element Min Max Similar
Si 0.1500 0.3500 -
S - 0.0400 -
P - 0.0350 -
Mn 0.7000 0.9000 -
Cr 0.8000 1.1000 -
C 0.2800 0.3300 -

Mechanical Properties of steel grade 30Ch

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)
362 (≥) 447 (≥) 32 41 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 231

Physical Properties of steel grade 30Ch

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
21 - -     0.41 -  
434 643 - 32.3 421   -  
435 - 22 34.2   443 233

Heat Treatment of steel grade 30Ch

Heat treated : 1488°C - 1768°C

Technological Curves of steel grade 30Ch

Cross Reference Table (Equivalent Grade) of 30Ch

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