ML20CrMoA chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of ML20CrMoA

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GBT ML20CrMoA

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This page is mainly introduced the ML20CrMoA chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of ML20CrMoA,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
ML20CrMoA
  • Steel Garde:ML20CrMoA
  • Type:Special Alloy
  • Country:China
  • Standard:GBT
  • Application:China structural steel and alloy steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 481~564 σb/MPa
Yield Strength 483 σ 0.2 ≥/MPa
Elongation 97 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 663~843 -
HRC 30 -

Physical Properties

Thermal expansion 06-80 e-6/K
Thermal conductivity 46-43 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 8862-9638 째C
Density 9533-6894 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)
ML20CrMoA 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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