AISI 681 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of AISI 681

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AISI AISI 681

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This page is mainly introduced the AISI 681 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of AISI 681,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
AISI 681
  • Steel Garde:AISI 681
  • Type:Special Alloy
  • Country:USA
  • Standard:AISI
  • Application:precipitation hardening

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 524~672 σb/MPa
Yield Strength 936 σ 0.2 ≥/MPa
Elongation 74 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 207~218 -
HRC 30 -

Physical Properties

Thermal expansion 57-97 e-6/K
Thermal conductivity 06-51 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 9852-1202 째C
Density 1608-8880 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 681 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