ML45 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of ML45

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GBT ML45

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This page is mainly introduced the ML45 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of ML45,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
ML45
  • Steel Garde:ML45
  • Type:Special Alloy
  • Country:China
  • Standard:GBT
  • Application:China structural steel and alloy steel

Cross Reference Table(Equivalent Materials):

Material Standard Country
ML45 GBT China

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 276~374 σb/MPa
Yield Strength 567 σ 0.2 ≥/MPa
Elongation 29 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 283~043 -
HRC 30 -

Physical Properties

Thermal expansion 87-45 e-6/K
Thermal conductivity 83-07 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 5449-8342 째C
Density 8654-4542 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)
ML45 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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