HR240 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of HR240

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B.S. HR240

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This page is mainly introduced the HR240 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of HR240,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Specification for cobalt-chromium-tungsten-nickel-manganese heat-resisting alloy plate, sheet and strip (cobalt base Cr 20, W 15, Ni 10, Mn 1.5)
  • Steel Garde:HR240
  • Type:Stainless Steels
  • Country:UK
  • Standard:B.S.
  • Standard Number:
    ITEM Standard Number Descriptions
    1 BS HR 240 (1972) Specification for cobalt-chromium-tungsten-nickel-manganese heat-resisting alloy plate, sheet and strip (cobalt base Cr 20, W 15, Ni 10, Mn 1.5)
    2 BS 2HR 240 (2011) Specification for cobalt-chromium-tungsten-nickel-manganese heat-resisting alloy plate, sheet and strip (cobalt base Cr 20, W 15, Ni 10, Mn 1.5)
  • Application:Specification for cobalt-chromium-tungsten-nickel-manganese heat-resisting alloy plate, sheet and strip (cobalt base Cr 20, W 15, Ni 10, Mn 1.5)

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.05  0.15
Si   0.40
Mn 1.00  2.00
P   0.040
S   0.030
Cr 19.00  21.00
Ni 9.00  11.00
Mo  
Co   remaining
Ti  
Fe   3.00
W 14.00  16.00

Mechanical Properties

Tensile strength 485~394 σb/MPa
Yield Strength 986 σ 0.2 ≥/MPa
Elongation 94 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 771~331 -
HRC 30 -

Physical Properties

Thermal expansion 26-15 e-6/K
Thermal conductivity 01-61 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 0043-9628 째C
Density 5696-4989 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)
HR240 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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