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ML20Cr

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ML22Mn ML25
#ML20Cr

Description

China GBT ML20Cr China structural steel and alloy steel and ML20Cr Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: ML20Cr
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel ML20Cr GBT China China structural steel and alloy steel
SC3
ML04Al
ML08Al
ML10Al
ML15Al
ML15
ML20Al
ML20
ML18Mn
ML22Mn

Chemical composition(mass fraction)(wt.%) of the ML20Cr

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) B(%) Al(%)
0.17-0.23 Max 0.30 0.60-0.90 0.035 0.035 0.90-1.20 — 0.02

Mechanical Properties of steel grade ML20Cr

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)
699 (≥) 888 (≥) 33 23 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 232

Physical Properties of steel grade ML20Cr

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 - -     0.13 -  
895 236 - 31.3 143   -  
833 - 23 23.2   234 422

Heat Treatment of steel grade ML20Cr

Heat treated : 1763°C - 1937°C

Technological Curves of steel grade ML20Cr

Cross Reference Table (Equivalent Grade) of ML20Cr

Grade Standard Country Application
ML20Cr GBT China China structural steel and alloy steel
ML20CrMoA GBT China China structural steel and alloy steel
ML22Mn 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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