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CNS SUH31 Details

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SUH31 Application:CNS standard heat resistant steel bar steel grade and chemical composition

Category Type Grade Microstructure Designations
Grades Stainless Steels SUH31 Austenite China - CNS ,

Chemical composition(wt.%) of SUH31 grade:

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.35 0.45
Si 1.50 2.50
Mn - 0.60
P - 0.040
S - 0.030
Cr 14.00 16.00
Ni 13.00 15.00
Mo - -
N - -
W 2.00 3.00
CNS standard heat resistant steel bar steel grade and chemical composition

Mechanical properties of grade SUH31

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)
261 (≥) 914 (≥) 32 14 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 413

Physical properties of grade SUH31

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
131 (≥) 868 (≥) 41 24 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 143
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
474 725 225

SUH31 - 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
SUH31 CNS China
CNS standard heat resistant steel bar steel grade and chemical composition
SUH310 CNS China
CNS standard heat resistant steel bar steel grade and chemical composition
SUH310 CNS China
CNS standard heat resistant steel plate of the steel grade and chemical composition

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