AISI631 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of AISI631

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AISI AISI631

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This page is mainly introduced the AISI631 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of AISI631,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
AISI631

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C   0.09
Si   1.00
Mn   1.00
P   0.04
S   0.04
Cr 16.0  18.0
Ni 6.5  7.75
Al 0.75  1.50

Mechanical Properties

Tensile strength 704~990 σb/MPa
Yield Strength 419 σ 0.2 ≥/MPa
Elongation 31 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 513~617 -
HRC 30 -

Physical Properties

Thermal expansion 37-65 e-6/K
Thermal conductivity 40-88 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 9242-8142 째C
Density 8947-8321 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)
AISI631 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