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40Mn2

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35Mn2 45Mn2
#40Mn2

Description

China GBT 40Mn2 China structural steel and alloy steel and 40Mn2 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: 40Mn2
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel 40Mn2 GBT China China structural steel and alloy steel
09MnREL
06TiL
08TiL
10TiL
09SiVL
16MnL
16MnREL
20Mn2
30Mn2
35Mn2

Chemical composition(mass fraction)(wt.%) of the 40Mn2

C(％) Si(％) Mn(％)
0.37-0.44 0.17-0.37 1.40-1.80

Mechanical Properties of steel grade 40Mn2

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)
282 (≥) 398 (≥) 21 33 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 413

Physical Properties of steel grade 40Mn2

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 -  
791 525 - 11.3 243   -  
756 - 13 44.2   241 434

Heat Treatment of steel grade 40Mn2

Heat treated : 1169°C - 1992°C

Technological Curves of steel grade 40Mn2

Cross Reference Table (Equivalent Grade) of 40Mn2

Grade Standard Country Application
40Mn2 GBT China China structural steel and alloy steel
ZG40Mn2 GBT China Large castings with low alloy cast steel
35Mn2 45Mn2
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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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