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 380~703 σb/MPa
Yield Strength 725 σ 0.2 ≥/MPa
Elongation 28 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 531~262 -
HRC 30 -

Physical Properties

Thermal expansion 98-51 e-6/K
Thermal conductivity 07-18 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 2943-1453 째C
Density 7723-4363 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