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 510~722 σb/MPa
Yield Strength 244 σ 0.2 ≥/MPa
Elongation 23 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 718~675 -
HRC 30 -

Physical Properties

Thermal expansion 85-38 e-6/K
Thermal conductivity 51-34 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 3328-8956 째C
Density 8071-7972 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