Austenitic 661 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of Austenitic 661

CNS Austenitic 661

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This page is mainly introduced the Austenitic 661 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of Austenitic 661,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Austenitic 661
  • Steel Garde:Austenitic 661
  • Type:Special Alloy
  • Country:China
  • Standard:CNS
  • Application:China Taiwan Heat-Resistant Steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 501~037 σb/MPa
Yield Strength 804 σ 0.2 ≥/MPa
Elongation 60 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 477~085 -
HRC 30 -

Physical Properties

Thermal expansion 40-53 e-6/K
Thermal conductivity 30-35 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 2550-5133 째C
Density 5930-6865 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)
Austenitic 661 Special Alloy 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