EN 31CrMoV9 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of EN 31CrMoV9

EN EN 31CrMoV9

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This page is mainly introduced the EN 31CrMoV9 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of EN 31CrMoV9,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Euronorm Structural steel, EN 31CrMoV9
  • Steel Garde:EN 31CrMoV9
  • Type:Special Alloy
  • Country:Euronorm
  • Standard:EN
  • Application:Euronorm Structural steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 734~833 σb/MPa
Yield Strength 132 σ 0.2 ≥/MPa
Elongation 43 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 489~141 -
HRC 30 -

Physical Properties

Thermal expansion 76-13 e-6/K
Thermal conductivity 95-98 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 1235-9757 째C
Density 1096-6274 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)
EN 31CrMoV9 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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