321S51 510 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 321S51 510

B.S. 321S51 510

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This page is mainly introduced the 321S51 510 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 321S51 510,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Specification for steel forgings for pressure purposes
  • Steel Garde:321S51 510
  • Type:Stainless Steels
  • Country:UK
  • Standard:B.S.
  • Standard Number:
    ITEM Standard Number Descriptions
    1 BS 1502 Specification for steels for fired and unfired pressure vessels: sections and bars
    2 BS 1503 Specification for steel forgings for pressure purposes
  • Application:Specification for steel forgings for pressure purposes

Cross Reference Table(Equivalent Materials):

Material Standard Country
321S51(1010) B.S. UK
321S51(1105) B.S. UK
321S51 B.S. UK
321S51 490 B.S. UK
321S51 520 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   0.045
S   0.025
Cr 17.00  19.00
Mo  
Ni 9.00  12.00
Ti   0.80

Mechanical Properties

Tensile strength 146~049 σb/MPa
Yield Strength 671 σ 0.2 ≥/MPa
Elongation 69 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 682~864 -
HRC 30 -

Physical Properties

Thermal expansion 94-66 e-6/K
Thermal conductivity 12-70 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 5336-5195 째C
Density 1498-0957 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)
321S51 510 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