40SiNiCr250 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 40SiNiCr250

STAS/SR 40SiNiCr250

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This page is mainly introduced the 40SiNiCr250 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 40SiNiCr250,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
40SiNiCr250
  • Steel Garde:40SiNiCr250
  • Type:Special Alloy
  • Country:Romania
  • Standard:STAS/SR
  • Application:Stainless steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 041~510 σb/MPa
Yield Strength 499 σ 0.2 ≥/MPa
Elongation 74 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 950~216 -
HRC 30 -

Physical Properties

Thermal expansion 94-84 e-6/K
Thermal conductivity 42-68 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 7644-8713 째C
Density 5581-6586 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)
40SiNiCr250 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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