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Chemical composition % of the ladle analysis of grade CNS 421J1

0.16-0.25 Max 1.00 Max 1.00 0.04 0.03 12.0-14.0 Max 0.60
CNS 421J1
Mechanical properties of grade CNS 421J1
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)
932 (≥) 872 (≥) 13 42 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 324
Physical properties of grade CNS 421J1
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
635 (≥) 347 (≥) 31 22 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 312
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
684 824 273
CNS 421J1 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
Steel for intake valves
S63005
Steel for intake valves
Z1CNS17-15
Iron and steel. Austenitic and austenic-ferritic stainless steels plates for boilers and pressure vessels
Z11CNS17-07Az
Stainless steels for general purposes. Plates, wide strips and strips
Z15CNS25-20
Iron and steel. Austenitic and austenic-ferritic stainless steels plates for boilers and pressure vessels
Z17CNS20-12
Iron and steel. Austenitic and austenic-ferritic stainless steels plates for boilers and pressure vessels
Z80CNS20-02
Valve steels and alloys for internal combustion engines

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