320S18 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 320S18

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B.S. 320S18

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This page is mainly introduced the 320S18 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 320S18,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Specification for stainless and heat-resisting steel round wire
  • Steel Garde:320S18
  • Type:Stainless Steels
  • Country:UK
  • Standard:B.S.
  • Standard Number:
    ITEM Standard Number Descriptions
    1 BS 1554 Specification for stainless and heat-resisting steel round wire
  • Application:Specification for stainless and heat-resisting steel round wire

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C   0.08
Si   1.00
Mn   2.00
P   0.045
S   0.03
Cr 16.50  18.50
Mo 2.00  2.50
Ni 10.50  13.50
Ti   0.80

Mechanical Properties

Tensile strength 410~204 σb/MPa
Yield Strength 397 σ 0.2 ≥/MPa
Elongation 24 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 046~063 -
HRC 30 -

Physical Properties

Thermal expansion 88-02 e-6/K
Thermal conductivity 70-88 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 4971-3853 째C
Density 1470-0714 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)
320S18 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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