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ML20

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ML18 ML25
#ML20

Description

China GBT ML20 China structural steel and alloy steel and ML20 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: ML20
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel ML20 GBT China China structural steel and alloy steel
A71145
A71204
A71354
A20378
A74204
A73154
A73204
ML10
ML15
ML18

Chemical composition(mass fraction)(wt.%) of the ML20

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) Mo(％) Cu(%)
0.17-0.24 Max 0.20 Max 0.60 0.035 0.035 Max 0.20 — — 0.2

Mechanical Properties of steel grade ML20

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)
753 (≥) 516 (≥) 33 33 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 312

Physical Properties of steel grade ML20

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 - -     0.13 -  
215 577 - 41.3 314   -  
794 - 34 12.2   321 324

Heat Treatment of steel grade ML20

Heat treated : 1472°C - 1541°C

Technological Curves of steel grade ML20

Cross Reference Table (Equivalent Grade) of ML20

Grade Standard Country Application
ML20Al GBT China China structural steel and alloy steel
ML20 GBT China China structural steel and alloy steel
ML20Cr GBT China China structural steel and alloy steel
ML20B GBT China China structural steel and alloy steel
ML20MnB GBT China China structural steel and alloy steel
ML20MnTiB GBT China China structural steel and alloy steel
ML20MnVB GBT China China structural steel and alloy steel
ML20 GBT China China structural steel and alloy steel
ML20MnA GBT China China structural steel and alloy steel
ML20CrMoA GBT China China structural steel and alloy steel
ML18 ML25
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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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