40BCr10q chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 40BCr10q

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STAS/SR 40BCr10q

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This page is mainly introduced the 40BCr10q chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 40BCr10q,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
40BCr10q
  • Steel Garde:40BCr10q
  • Type:Special Alloy
  • Country:Romania
  • Standard:STAS/SR
  • Application:Alloy structural steel

Cross Reference Table(Equivalent Materials):

Material Standard Country
40BCr10q STAS/SR Romania

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 052~715 σb/MPa
Yield Strength 712 σ 0.2 ≥/MPa
Elongation 36 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 393~686 -
HRC 30 -

Physical Properties

Thermal expansion 64-40 e-6/K
Thermal conductivity 13-30 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 0342-5587 째C
Density 1870-6581 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)
40BCr10q 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