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JIS SUH 661 Details

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SUH 661 Application:Heat-resisting steel plate, sheet and strip

Category Type Grade Microstructure Designations
Grades Stainless Steels SUH 661 Austenite Japan - JIS , G 4312 (2011) - Heat-resisting steel plate, sheet and strip

Chemical composition(wt.%) of SUH 661 grade: G 4312 (2011)

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
Heat-resisting steel plate, sheet and strip

Mechanical properties of grade SUH 661 G 4312 (2011)

Proof strength
Rp0.2 (MPa)
Tensile strength
Rm (MPa)
Impact energy
KV (J)
Elongation at fracture
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
293 (≥) 912 (≥) 24 22 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 332

Physical properties of grade SUH 661 G 4312 (2011)

Property Density
kg/dm3
Temperature T
°C/F
Specific heat
J / kgK
Thermal conductivity
W/mK
Electric resistance
µΩ·cm
Modulus of elasticity
kN/mm2
Expansion rate
262 (≥) 117 (≥) 21 34 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 323
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
787 439 266

SUH 661 - Form of Supply

Product type Products Dimension Processes Deliver Status
Plates / Sheets Plates / Sheets 0.08-200mm(T)*W*L Forging, hot rolling and cold rolling Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Steel Bar Round Bar, Flat Bar, Square Bar Φ8-1200mm*L Forging, hot rolling and cold rolling, Cast Black, Rough Turning, Shot Blasting,
Coil / Strip Steel Coil /Steel Strip 0.03-16.0x1200mm Cold-Rolled & Hot-Rolled Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Pipes / Tubes Seamless Pipes/Tubes, Welded Pipes/Tubes OD:6-219mm x WT:0.5-20.0mm Hot extrusion, Cold Drawn, Welded Annealed, Solution and Aging, Q+T, ACID-WASHED

Cross Reference Table(Equivalent Grade)

Grade Standard Country Application
SUH 661 JIS Japan
Heat-resisting steel bars and wire rods
SUH 661 JIS Japan
Heat-resisting steel plate, sheet and strip

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