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CNS 420J1 Application:CNS standard martensite stainless steel
Category Type Steel grade Standard Country
Grades Special Alloy CNS 420J1 CNS China

Chemical composition % of the ladle analysis of grade CNS 420J1

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%)
0.16-0.25 Max 1.00 Max 1.00 Max 0.040 Max 0.030 12.00-14.00 Max 0.60
CNS standard martensite stainless steel
Mechanical properties of grade CNS 420J1
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)
811 (≥) 334 (≥) 14 21 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 332
Physical properties of grade CNS 420J1
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
593 (≥) 244 (≥) 21 22 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 342
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
675 211 267
CNS 420J1 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
SUS 420J1 FB CNS China
Stainless steel blooms and billets for forgings
SUS 420J1TKA CNS China
Stainless steel pipes for machine and structural purposes
STS420J1 CNS China
Stainless steel bars
STS420J1TKA CNS China
Stainless steel pipes for machine and structural purposes
STS420J1FB CNS China
Stainless steel blooms and billets for forgings
420J1 CNS China
Stainless steel wire rods
420J1TKA CNS China
CNS standard mechanical and structure with stainless steel pipe

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