304S51 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 304S51

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B.S. 304S51

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This page is mainly introduced the 304S51 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 304S51,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Austenitic stainless steel pipes and tubes for pressure purposes. Specification for seamless tubes
  • Steel Garde:304S51
  • Type:Stainless Steels
  • Country:UK
  • Standard:B.S.
  • Standard Number:
    ITEM Standard Number Descriptions
    1 BS 1501-3 Steels for pressure purposes. Specification for corrosion- and heat-resisting steels: plates, sheet and strip
    2 BS 1502 Specification for steels for fired and unfired pressure vessels: sections and bars
    3 BS 1503 Specification for steel forgings for pressure purposes
    4 BS 1506 Specification for carbon, low alloy and stainless steel bars and billets for bolting material to be used in pressure retaining applications
    5 BS 3059-2 Steel boiler and superheater tubes. Specification for carbon, alloy and austenitic stainless steel tubes with specified elevated temperature properties
    6 BS 3605-1 Austenitic stainless steel pipes and tubes for pressure purposes. Specification for seamless tubes
  • Application:Austenitic stainless steel pipes and tubes for pressure purposes. Specification for seamless tubes

Cross Reference Table(Equivalent Materials):

Material Standard Country
HFS 304S51 B.S. UK
CFS 304S51 B.S. UK
HFM 304S51 B.S. UK
304 S51 B.S. UK
HFS304 S51 B.S. UK
CFS304 S51 B.S. UK
HFM304 S51 B.S. UK
304S 51 B.S. UK

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.04  0.10
Si   1.00
Mn   2.00
P   0.04
S   0.03
Cr 17.00  19.00
Mo  
Ni 8.00  11.00

Mechanical Properties

Tensile strength 534~462 σb/MPa
Yield Strength 527 σ 0.2 ≥/MPa
Elongation 11 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 918~478 -
HRC 30 -

Physical Properties

Thermal expansion 01-16 e-6/K
Thermal conductivity 16-49 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 7177-2497 째C
Density 8078-6891 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)
304S51 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