ASTM631 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of ASTM631

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ASTM ASTM631

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This page is mainly introduced the ASTM631 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of ASTM631,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
ASTM631

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 194~570 σb/MPa
Yield Strength 555 σ 0.2 ≥/MPa
Elongation 74 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 348~823 -
HRC 30 -

Physical Properties

Thermal expansion 98-22 e-6/K
Thermal conductivity 90-35 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 8463-4612 째C
Density 6596-3223 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)
ASTM631 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