HR204 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of HR204

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B.S. HR204

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This page is mainly introduced the HR204 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of HR204,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Specification for nickel-chromium-iron-molybdenum-cobalt-tungsten heat-resisting alloy plate, sheet and strip (nickel base, Cr 21.7, Fe 18.5, Mo 9, Co 1.5, W 0.6)
  • Steel Garde:HR204
  • Type:Stainless Steels
  • Country:UK
  • Standard:B.S.
  • Standard Number:
    ITEM Standard Number Descriptions
    1 BS HR 204 (1972) Specification for nickel-chromium-iron-molybdenum-cobalt-tungsten heat-resisting alloy plate, sheet and strip (nickel base Cr 22, Fe 18.5, Mo 9, Co 1.5, W 0.6)
    2 BS 2HR 204 (2009) Specification for nickel-chromium-iron-molybdenum-cobalt-tungsten heat-resisting alloy plate, sheet and strip (nickel base, Cr 21.7, Fe 18.5, Mo 9, Co 1.5, W 0.6)
  • Application:Specification for nickel-chromium-iron-molybdenum-cobalt-tungsten heat-resisting alloy plate, sheet and strip (nickel base, Cr 21.7, Fe 18.5, Mo 9, Co 1.5, W 0.6)

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.05  0.15
Si   1.00
Mn   1.00
P   0.040
S   0.015
Cr 20.50  23.00
Ni   remaining
Mo 8.00  10.00
Co 0.50  2.50
Ti  
Fe 17.00  20.00
W 0.20  1.00
B   0.0100
Pb   0.005

Mechanical Properties

Tensile strength 563~244 σb/MPa
Yield Strength 586 σ 0.2 ≥/MPa
Elongation 32 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 375~350 -
HRC 30 -

Physical Properties

Thermal expansion 81-69 e-6/K
Thermal conductivity 36-99 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 7523-5650 째C
Density 3061-2958 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)
HR204 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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