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20CrMn

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15CrMn 40CrMn
#20CrMn

Description

China GBT 20CrMn China structural steel and alloy steel and 20CrMn Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: 20CrMn
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel 20CrMn GBT China China structural steel and alloy steel
42CrMo
12CrMoV
35CrMoV
12Cr1MoV
25Cr2MoVA
25Cr2Mo1VA
38CrMoAl
40CrV
50CrVA
15CrMn

Chemical composition(mass fraction)(wt.%) of the 20CrMn

C(％) Si(％) Mn(％) Cr(％)
0.17-0.23 0.17-0.37 0.90-1.20 0.90-1.20

Mechanical Properties of steel grade 20CrMn

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)
721 (≥) 181 (≥) 42 21 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 223

Physical Properties of steel grade 20CrMn

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
34 - -     0.32 -  
437 497 - 21.3 321   -  
194 - 34 23.2   313 114

Heat Treatment of steel grade 20CrMn

Heat treated : 1461°C - 1835°C

Technological Curves of steel grade 20CrMn

Cross Reference Table (Equivalent Grade) of 20CrMn

Grade Standard Country Application
20CrMnVTiB4-10 AFNOR France Fasteners with stainless steel and nickel alloy for high temperature and low temperature (NF-EN 10269(1999))
20CrMn GBT China China structural steel and alloy steel
20CrMnSi GBT China China structural steel and alloy steel
20CrMnMo GBT China China structural steel and alloy steel
20CrMnTi GBT China China structural steel and alloy steel
20CrMnMoH GBT China China structural steel and alloy steel
20CrMnTiH GBT China China structural steel and alloy steel
15CrMn 40CrMn
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Jiangyou Longhai Special Steel Co.,Ltd.
Jiangyou Longhai Special Steel Co.,Ltd.

Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n...

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