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 087~235 σb/MPa
Yield Strength 534 σ 0.2 ≥/MPa
Elongation 33 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 485~382 -
HRC 30 -

Physical Properties

Thermal expansion 65-97 e-6/K
Thermal conductivity 73-36 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 9404-7662 째C
Density 8824-2583 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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