SUH 661 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SUH 661

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JIS SUH 661

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This page is mainly introduced the SUH 661 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SUH 661,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Heat-resisting steel bars and wire rods

Cross Reference Table(Equivalent Materials):

Material Standard Country
SUH 661 JIS Japan

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.08  0.16
Si   1.00
Mn 1.00  2.00
P   0.04
S   0.03
Cr 20.00  22.50
Ni 19.00  21.00
Mo 2.50  3.50
W 2.00  3.00
Co 18.50  21.00
Nb 0.75  1.25
N 0.10  0.20

Mechanical Properties

Tensile strength 419~779 σb/MPa
Yield Strength 033 σ 0.2 ≥/MPa
Elongation 93 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 965~371 -
HRC 30 -

Physical Properties

Thermal expansion 66-65 e-6/K
Thermal conductivity 67-55 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 4008-7482 째C
Density 3674-1435 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)
SUH 661 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