ML30 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of ML30

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GBT ML30

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This page is mainly introduced the ML30 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of ML30,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
ML30
  • Steel Garde:ML30
  • Type:Special Alloy
  • Country:China
  • Standard:GBT
  • Application:China structural steel and alloy steel

Cross Reference Table(Equivalent Materials):

Material Standard Country
ML30Mn GBT China
ML30CrMo GBT China
ML30 GBT China
ML30CrMnSiA GBT China
ML30CrMoA GBT China

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 977~764 σb/MPa
Yield Strength 393 σ 0.2 ≥/MPa
Elongation 36 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 807~837 -
HRC 30 -

Physical Properties

Thermal expansion 32-93 e-6/K
Thermal conductivity 23-05 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 7771-5623 째C
Density 0331-0803 kg/m3
Resistivity 0.50-0.60 Ohm.mm2/m
     

Heat Treatment Regime

Annealing

Quenching

Tempering

Normalizing

Q & T

Size Availability

Steel Grade Specification Processing range(mm)
ML30 Special Alloy Round Bar and Hollow Bar Φ1 to Φ2000
Square and Flat Steel Φ10 to Φ100
Plate and Sheet 0.08-800(Thickness)*10-1500(Width)*Length
Tube or Pipe OD:Φ4-410; WT:1-35 mm; Lenght:10-12000
Coil and Strip Steel THK:0.1mm Width:1500mm
Forged Ring/Cylindrical/Disk

Technical specification/standard for download

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