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Description

China GBT 30CrMnSi China structural steel and alloy steel and 30CrMnSi Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: 30CrMnSi
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel 30CrMnSi GBT China China structural steel and alloy steel
25Cr2MoVA
25Cr2Mo1VA
38CrMoAl
40CrV
50CrVA
15CrMn
20CrMn
40CrMn
20CrMnSi
25CrMnSi

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

C(%) Si(%) Mn(%) Cr(%)
0.27-0.34 0.90-1.20 0.80-1.10 0.80-1.10

Mechanical Properties of steel grade 30CrMnSi

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)
927 (≥) 195 (≥) 34 42 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 241

Physical Properties of steel grade 30CrMnSi

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
24 - -     0.42 -  
116 836 - 34.3 213   -  
776 - 34 41.2   143 322

Heat Treatment of steel grade 30CrMnSi

Heat treated : 1371°C - 1613°C

Technological Curves of steel grade 30CrMnSi

Cross Reference Table (Equivalent Grade) of 30CrMnSi

Grade Standard Country Application
30CrMnSi GBT China China structural steel and alloy steel
30CrMnSiA GBT China China structural steel and alloy steel
30CrMnSiNi2A GBT China China structural steel and alloy steel
ML30CrMnSiA GBT China China structural steel and alloy steel

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