ASTM 431 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of ASTM 431

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ASTM ASTM 431

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This page is mainly introduced the ASTM 431 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of ASTM 431,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
ASTM 431
  • Steel Garde:ASTM 431
  • Type:Special Alloy
  • Country:USA
  • Standard:ASTM
  • Application:Martensitic special steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 777~488 σb/MPa
Yield Strength 676 σ 0.2 ≥/MPa
Elongation 19 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 952~174 -
HRC 30 -

Physical Properties

Thermal expansion 98-03 e-6/K
Thermal conductivity 93-08 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 2850-1777 째C
Density 8351-5092 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)
ASTM 431 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