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45Mn2

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40Mn2 50Mn2
#45Mn2

Description

China GBT 45Mn2 China structural steel and alloy steel and 45Mn2 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: 45Mn2
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel 45Mn2 GBT China China structural steel and alloy steel
06TiL
08TiL
10TiL
09SiVL
16MnL
16MnREL
20Mn2
30Mn2
35Mn2
40Mn2

Chemical composition(mass fraction)(wt.%) of the 45Mn2

C(％) Si(％) Mn(％)
0.42-0.49 0.17-0.37 1.40-1.80

Mechanical Properties of steel grade 45Mn2

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)
811 (≥) 631 (≥) 14 32 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 422

Physical Properties of steel grade 45Mn2

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
21 - -     0.11 -  
639 132 - 33.3 313   -  
588 - 44 43.2   222 321

Heat Treatment of steel grade 45Mn2

Heat treated : 1992°C - 1774°C

Technological Curves of steel grade 45Mn2

Cross Reference Table (Equivalent Grade) of 45Mn2

Grade Standard Country Application
45Mn2 GBT China China structural steel and alloy steel
40Mn2 50Mn2
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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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