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CNS 347 Application:China Taiwan Stainless steel
Category Type Steel grade Standard Country
Grades Special Alloy CNS 347 CNS China

Chemical composition % of the ladle analysis of grade CNS 347

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Nb(%)
Max 0.08 Max 1.00 Max 2.00 0.045 0.03 17.0-19.0 9.0-13.0 Min 10xC%
CNS 347
Mechanical properties of grade CNS 347
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)
955 (≥) 993 (≥) 21 23 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 432
Physical properties of grade CNS 347
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
553 (≥) 291 (≥) 14 31 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 134
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
215 556 314
CNS 347 Range of products
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
HNV5 CNS China
Steel for intake valves
S63005 CNS China
Steel for intake valves
Z1CNS17-15 CNS China
Iron and steel. Austenitic and austenic-ferritic stainless steels plates for boilers and pressure vessels
Z11CNS17-07Az CNS China
Stainless steels for general purposes. Plates, wide strips and strips
Z15CNS25-20 CNS China
Iron and steel. Austenitic and austenic-ferritic stainless steels plates for boilers and pressure vessels
Z17CNS20-12 CNS China
Iron and steel. Austenitic and austenic-ferritic stainless steels plates for boilers and pressure vessels
Z80CNS20-02 CNS China
Valve steels and alloys for internal combustion engines
A 240 S34700 CNS China
Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
A 249 S34700 CNS China
Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes
A 269 S34700 CNS China
Seamless and Welded Austenitic Stainless Steel Tubing for General Service
A 276 S34700 CNS China
Stainless Steel Bars and Shapes
A 313 S34700 CNS China
Stainless Steel Spring Wire
A 314 S34700 CNS China
Stainless Steel Billets and Bars for Forging
A 358 S34700 CNS China
Electric-Fusion-Welded Austenitic Chromium-Nickel Stainless Steel Pipe for High-Temperature Service and General Applications
A 409 S34700 CNS China
Welded Large Diameter Austenitic Steel Pipe for Corrosive or High-Temperature Service
A 473 S34700 CNS China
Stainless Steel Forgings
A 580 S34700 CNS China
Stainless Steel Wire
A 632 S34700 CNS China
Seamless and Welded Austenitic Stainless Steel Tubing (Small-Diameter) for General Service
A 778 S34700 CNS China
Welded, Unannealed Austenitic Stainless Steel Tubular Products
A 813 S34700 CNS China
Single- or Double-Welded Austenitic Stainless Steel Pipe

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