45Mn chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 45Mn

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This page is mainly introduced the 45Mn chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 45Mn,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
45Mn
  • Steel Garde:45Mn
  • Type:Special Alloy
  • Country:China
  • Standard:GBT
  • Application:China structural steel and alloy steel

Cross Reference Table(Equivalent Materials):

Material Standard Country
YF45MnV GBT China
45Mn2 GBT China
45MnB GBT China
45MnBH GBT China

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 753~247 σb/MPa
Yield Strength 874 σ 0.2 ≥/MPa
Elongation 24 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 789~671 -
HRC 30 -

Physical Properties

Thermal expansion 20-40 e-6/K
Thermal conductivity 06-35 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 1696-1444 째C
Density 9028-1977 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)
45Mn 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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