381S34 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 381S34

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B.S. 381S34

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This page is mainly introduced the 381S34 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 381S34,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:381S34
  • 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 0.15  0.25
Si 0.75  1.25
Mn   1.50
P   0.040
S   0.030
Cr 20.00  22.00
Ni 10.50  12.50
Mo  
N 0.15  0.30

Mechanical Properties

Tensile strength 566~534 σb/MPa
Yield Strength 956 σ 0.2 ≥/MPa
Elongation 31 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 800~636 -
HRC 30 -

Physical Properties

Thermal expansion 54-70 e-6/K
Thermal conductivity 54-56 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 7764-3773 째C
Density 6962-4661 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)
381S34 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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