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ML28B

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ML20B ML35B
#ML28B

Description

China GBT ML28B China structural steel and alloy steel and ML28B Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: ML28B
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel ML28B GBT China China structural steel and alloy steel
ML15Mn
ML25Mn
ML30Mn
ML35Mn
ML37Cr
ML40Cr
ML30CrMo
ML35CrMo
ML42CrMo
ML20B

Chemical composition(mass fraction)(wt.%) of the ML28B

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) B(%) Al(%)
0.25-0.32 Max 0.40 0.60-0.90 0.035 0.035 — 0.0005-0.0035 0.02

Mechanical Properties of steel grade ML28B

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)
723 (≥) 476 (≥) 22 11 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 144

Physical Properties of steel grade ML28B

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 - -     0.44 -  
863 838 - 14.3 331   -  
745 - 11 13.2   421 121

Heat Treatment of steel grade ML28B

Heat treated : 1594°C - 1451°C

Technological Curves of steel grade ML28B

Cross Reference Table (Equivalent Grade) of ML28B

Grade Standard Country Application
ML28B GBT China China structural steel and alloy steel
ML20B ML35B
Available Suppliers
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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