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ML30

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ML25 ML35
#ML30

Description

China GBT ML30 China structural steel and alloy steel and ML30 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: ML30
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel ML30 GBT China China structural steel and alloy steel
A71354
A20378
A74204
A73154
A73204
ML10
ML15
ML18
ML20
ML25

Chemical composition(mass fraction)(wt.%) of the ML30

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) Mo(％) Cu(%)
0.27-0.35 Max 0.20 Max 0.60 0.035 0.035 Max 0.20 — — 0.2

Mechanical Properties of steel grade ML30

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)
658 (≥) 124 (≥) 32 34 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 114

Physical Properties of steel grade ML30

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 - -     0.34 -  
421 616 - 22.3 332   -  
133 - 33 24.2   444 214

Heat Treatment of steel grade ML30

Heat treated : 1176°C - 1935°C

Technological Curves of steel grade ML30

Cross Reference Table (Equivalent Grade) of ML30

Grade Standard Country Application
ML30 GBT China China structural steel and alloy steel
ML30Mn GBT China China structural steel and alloy steel
ML30CrMo GBT China China structural steel and alloy steel
ML30 GBT China China structural steel and alloy steel
ML30CrMnSiA GBT China China structural steel and alloy steel
ML30CrMoA GBT China China structural steel and alloy steel
ML25 ML35
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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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