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ML20MnTiB

Description

China GBT ML20MnTiB China structural steel and alloy steel and ML20MnTiB Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: ML20MnTiB
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel ML20MnTiB GBT China China structural steel and alloy steel
ML30CrMo
ML35CrMo
ML42CrMo
ML20B
ML28B
ML35B
ML15MnB⑤
ML20MnB
ML35MnB
ML37CrB

Chemical composition(mass fraction)(wt.%) of the ML20MnTiB

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) B(%) Al(%) Ti(%)
0.19-0.24 Max 0.30 1.30-1.60 0.035 0.035 0.0005-0.0035 0.02 0.04-0.10

Mechanical Properties of steel grade ML20MnTiB

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)
949 (≥) 348 (≥) 44 21 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 122

Physical Properties of steel grade ML20MnTiB

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 - -     0.14 -  
571 514 - 21.3 213   -  
242 - 42 41.2   441 422

Heat Treatment of steel grade ML20MnTiB

Heat treated : 1424°C - 1976°C

Technological Curves of steel grade ML20MnTiB

Cross Reference Table (Equivalent Grade) of ML20MnTiB

Grade Standard Country Application
ML20MnTiB GBT China China structural steel and alloy steel

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