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40CrMn

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20CrMn 20CrMnSi
#40CrMn

Description

China GBT 40CrMn China structural steel and alloy steel and 40CrMn Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

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

Chemical composition(mass fraction)(wt.%) of the 40CrMn

C(％) Si(％) Mn(％) Cr(％)
0.37-0.45 0.17-0.37 0.90-1.20 0.90-1.20

Mechanical Properties of steel grade 40CrMn

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)
274 (≥) 373 (≥) 33 22 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 231

Physical Properties of steel grade 40CrMn

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
31 - -     0.44 -  
955 544 - 41.3 232   -  
968 - 12 44.2   113 234

Heat Treatment of steel grade 40CrMn

Heat treated : 1383°C - 1746°C

Technological Curves of steel grade 40CrMn

Cross Reference Table (Equivalent Grade) of 40CrMn

Grade Standard Country Application
40CrMnMo7 DIN Germany Cold working alloy tool steel
40CrMnMoS8-6 DIN Germany Cold working alloy tool steel
40CrMnNiMo8-6-4 DIN Germany Cold working alloy tool steel
40CrMnMo8 AFNOR France Carbide for cutting tools
40CrMnMo8 AFNOR France Carbide for cutting tools
40CrMnNiMo8-6-4① ISO ISO Carbide for cutting tools
40CrMnNiMo8-6-4① ISO ISO Carbide for cutting tools
S40CrMnlSil STAS/SR Romania tool steel
40CrMnMo7 UNE Spain Spain structural alloy steel
40CrMn GBT China China structural steel and alloy steel
40CrMnMo GBT China China structural steel and alloy steel
EN 40CrMnNiMo8-6-4 EN Euronorm Euronorm Tool steel
20CrMn 20CrMnSi
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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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