40CrNi12q chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 40CrNi12q

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STAS/SR 40CrNi12q

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This page is mainly introduced the 40CrNi12q chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 40CrNi12q,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
40CrNi12q
  • Steel Garde:40CrNi12q
  • Type:Special Alloy
  • Country:Romania
  • Standard:STAS/SR
  • Application:Alloy structural steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 352~391 σb/MPa
Yield Strength 818 σ 0.2 ≥/MPa
Elongation 93 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 413~988 -
HRC 30 -

Physical Properties

Thermal expansion 40-80 e-6/K
Thermal conductivity 62-26 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 5777-1019 째C
Density 6383-7836 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)
40CrNi12q 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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