301S81 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 301S81

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B.S. 301S81

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This page is mainly introduced the 301S81 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 301S81,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Specification for stainless steel wire for mechanical springs
  • Steel Garde:301S81
  • Type:Stainless Steels
  • Country:UK
  • Standard:B.S.
  • Standard Number:
    ITEM Standard Number Descriptions
    1 BS 2056 Specification for stainless steel wire for mechanical springs
  • Application:Specification for stainless steel wire for mechanical springs

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C   0.09
Si   1.00
Mn   1.00
P   0.045
S   0.030
Cr 16.00  18.00
Mo  
Ni 6.50  7.75
Al 0.75  1.50

Mechanical Properties

Tensile strength 995~798 σb/MPa
Yield Strength 584 σ 0.2 ≥/MPa
Elongation 09 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 669~413 -
HRC 30 -

Physical Properties

Thermal expansion 25-44 e-6/K
Thermal conductivity 93-24 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 8329-0697 째C
Density 4805-3204 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)
301S81 Stainless Steels 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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