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CNS 431 Application:China Taiwan Stainless steel
Category Type Steel grade Standard Country
Grades Special Alloy CNS 431 CNS China

Chemical composition % of the ladle analysis of grade CNS 431

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%)
Max 0.20 Max 1.00 Max 1.00 0.04 0.03 15.00-17.00 1.25-2.50
CNS 431
Mechanical properties of grade CNS 431
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)
894 (≥) 516 (≥) 24 12 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 112
Physical properties of grade CNS 431
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
174 (≥) 764 (≥) 13 21 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 411
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
169 598 163
CNS 431 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 176 S43100 CNS China
Stainless and Heat-Resisting Chromium Steel Plate, Sheet, and Strip
A 276 S43100 CNS China
Stainless Steel Bars and Shapes
A 314 S43100 CNS China
Stainless Steel Billets and Bars for Forging
A 473 S43100 CNS China
Stainless Steel Forgings
A 493 S43100 CNS China
Stainless Steel Wire and Wire Rods for Cold Heading and Cold Forging
A 580 S43100 CNS China
Stainless Steel Wire
F738 Class C3-120 S43100 CNS China
Standard Specification for Stainless Steel Metric Bolts, Screws, and Studs
F738 Class C3-80 S43100 CNS China
Standard Specification for Stainless Steel Metric Bolts, Screws, and Studs
F836 Class C3-120 S43100 CNS China
Standard Specification for Style 1 Stainless Steel Metric Nuts (Metric)
F836 Class C3-80 S43100 CNS China
Standard Specification for Style 1 Stainless Steel Metric Nuts (Metric)
S43100 CNS China
Nickel Bearing Hardenable Chromium Stainless Steel
1.4310 CNS China
Stainless steels - Part 1: List of stainless steels
X2CrNiN18-10 CNS China
Cold heading and cold extruding steels; technical delivery conditions for stainless steels

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