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40Cr

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35Cr 45Cr
#40Cr

Description

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

Datasheet for: Steel Grades:Structure Steel: 40Cr
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel 40Cr GBT China China structural steel and alloy steel
15MnVB
20MnVB
40MnVB
20MnTiB
25MnRiVRE
15Cr
15CrA
20Cr
30Cr
35Cr

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

C(％) Si(％) Mn(％) Cr(％)
0.37-0.44 0.17-0.37 0.50-0.80 0.80-1.10

Mechanical Properties of steel grade 40Cr

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)
983 (≥) 595 (≥) 22 21 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 243

Physical Properties of steel grade 40Cr

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
43 - -     0.24 -  
678 243 - 33.3 243   -  
825 - 33 13.2   132 424

Heat Treatment of steel grade 40Cr

Heat treated : 1785°C - 1251°C

Technological Curves of steel grade 40Cr

Cross Reference Table (Equivalent Grade) of 40Cr

Grade Standard Country Application
140Cr3 DIN Germany Cold working alloy tool steel
140Cr2 DIN Germany Cold working alloy tool steel
140CrV1 DIN Germany Cold working alloy tool steel
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
40CrMoV7 DIN Germany Hot working alloy tool steel
X40CrMoV5-1 DIN Germany Hot working alloy tool steel
40CrMnMo8 AFNOR France Carbide for cutting tools
40CrMnMo8 AFNOR France Carbide for cutting tools
X40Cr14 AFNOR France Carbide for cutting tools
X40Cr14 AFNOR France Carbide for cutting tools
40CrMoV13 AFNOR France Carbide for cutting tools
40CrMoV13 AFNOR France Carbide for cutting tools
X40CrMoV5 AFNOR France Carbide for cutting tools
X40CrMoV5 AFNOR France Carbide for cutting tools
40CrMnNiMo8-6-4① ISO ISO Carbide for cutting tools
40CrMnNiMo8-6-4① ISO ISO Carbide for cutting tools
X40CrSiMo10-2 DIN Germany Valve steel
X40CrCoNb13-13 DIN Germany The high-temperature and high-strength steel
35Cr 45Cr
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Jiangyou Longhai Special Steel Co.,Ltd.
Jiangyou Longhai Special Steel Co.,Ltd.

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