331S40 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 331S40

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B.S. 331S40

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This page is mainly introduced the 331S40 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 331S40,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Specification for wrought steels for mechanical and allied engineering purposes. Valve steels
  • Steel Garde:331S40
  • Type:Stainless Steels
  • Country:UK
  • Standard:B.S.
  • Standard Number:
    ITEM Standard Number Descriptions
    1 BS 970-4 Specification for wrought steels for mechanical and allied engineering purposes. Valve steels
  • Application:Specification for wrought steels for mechanical and allied engineering purposes. Valve steels

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.35  0.50
Si 1.00  2.00
Mn 0.50  1.00
P   0.040
S   0.030
Cr 12.00  15.00
Ni 12.00  15.00
Mo  
W 2.00  3.00

Mechanical Properties

Tensile strength 652~647 σb/MPa
Yield Strength 834 σ 0.2 ≥/MPa
Elongation 59 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 775~345 -
HRC 30 -

Physical Properties

Thermal expansion 60-64 e-6/K
Thermal conductivity 30-95 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 1048-2284 째C
Density 3047-4418 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)
331S40 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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