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40MnBH

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45CrH 45MnBH
#40MnBH

Description

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

Datasheet for: Steel Grades:Structure Steel: 40MnBH
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel 40MnBH GBT China China structural steel and alloy steel
25Cr2Ni4WA
38CrA
30CrMnMoTiA
30CrNi2MoVA
30SiMn2MoVA
30CrMnSiNi2A
45H
20CrH
40CrH
45CrH

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

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) B(%) Ti(%) Other(%)
0.37-0.44 0.17-0.37 1.00-1.40 0.035 0.035 Max 0.35 0.0005-0.0035 — —

Mechanical Properties of steel grade 40MnBH

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)
836 (≥) 122 (≥) 41 13 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 413

Physical Properties of steel grade 40MnBH

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
14 - -     0.22 -  
134 974 - 12.3 412   -  
769 - 41 12.2   123 432

Heat Treatment of steel grade 40MnBH

Heat treated : 1317°C - 1667°C

Technological Curves of steel grade 40MnBH

Cross Reference Table (Equivalent Grade) of 40MnBH

Grade Standard Country Application
40MnBH GBT China China structural steel and alloy steel
45CrH 45MnBH
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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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