SUS 631 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SUS 631

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JIS SUS 631

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This page is mainly introduced the SUS 631 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SUS 631,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Heat-resisting steel plate, sheet and strip

Cross Reference Table(Equivalent Materials):

Material Standard Country
SUS 631 JIS Japan
SUS 631 JIS Japan
SUS 631 JIS Japan
SUS 631 JIS Japan
SUS 631 J1 JIS Japan
SUS 631 J1 JIS Japan
SUS 631-CSP JIS Japan
SUS 631J1-WPC JIS Japan

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C   0.09
Si   1.00
Mn   1.00
P   0.04
S   0.03
Cr 16.00  18.00
Ni 6.50  7.75
Mo  
N  
Al 0.75  1.50

Mechanical Properties

Tensile strength 614~588 σb/MPa
Yield Strength 224 σ 0.2 ≥/MPa
Elongation 23 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 031~671 -
HRC 30 -

Physical Properties

Thermal expansion 97-65 e-6/K
Thermal conductivity 39-25 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 1131-1943 째C
Density 9543-8516 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)
SUS 631 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