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ML40

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ML35 ML45
#ML40

Description

China GBT ML40 China structural steel and alloy steel and ML40 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: ML40
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel ML40 GBT China China structural steel and alloy steel
A74204
A73154
A73204
ML10
ML15
ML18
ML20
ML25
ML30
ML35

Chemical composition(mass fraction)(wt.%) of the ML40

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) Mo(％) Cu(%)
0.37-0.45 Max 0.20 Max 0.60 0.035 0.035 Max 0.20 — — 0.2

Mechanical Properties of steel grade ML40

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)
476 (≥) 739 (≥) 11 22 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 223

Physical Properties of steel grade ML40

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
12 - -     0.24 -  
452 155 - 13.3 233   -  
272 - 44 13.2   322 213

Heat Treatment of steel grade ML40

Heat treated : 1635°C - 1383°C

Technological Curves of steel grade ML40

Cross Reference Table (Equivalent Grade) of ML40

Grade Standard Country Application
ML40 GBT China China structural steel and alloy steel
ML40Cr GBT China China structural steel and alloy steel
ML40 GBT China China structural steel and alloy steel
ML40CrMoA GBT China China structural steel and alloy steel
ML35 ML45
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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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