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

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AISI AISI 661

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

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 812~707 σb/MPa
Yield Strength 395 σ 0.2 ≥/MPa
Elongation 43 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 810~575 -
HRC 30 -

Physical Properties

Thermal expansion 25-63 e-6/K
Thermal conductivity 26-89 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 5535-8435 째C
Density 0144-7255 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)
AISI 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