20MnCr12S chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 20MnCr12S

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STAS/SR 20MnCr12S

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This page is mainly introduced the 20MnCr12S chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 20MnCr12S,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
20MnCr12S
  • Steel Garde:20MnCr12S
  • Type:Special Alloy
  • Country:Romania
  • Standard:STAS/SR
  • Application:Alloy structural steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 357~554 σb/MPa
Yield Strength 933 σ 0.2 ≥/MPa
Elongation 10 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 572~398 -
HRC 30 -

Physical Properties

Thermal expansion 86-58 e-6/K
Thermal conductivity 27-30 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 2114-2130 째C
Density 5835-1388 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)
20MnCr12S 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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