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 144~719 σb/MPa
Yield Strength 454 σ 0.2 ≥/MPa
Elongation 85 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 427~386 -
HRC 30 -

Physical Properties

Thermal expansion 85-42 e-6/K
Thermal conductivity 40-60 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 5266-0851 째C
Density 7703-0922 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