Location » Home » Grades > Special Alloy > CNS 420F
CNS 420F Application:CNS standard martensite stainless steel
Category Type Steel grade Standard Country
Grades Special Alloy CNS 420F CNS China

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

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Mo(%)
0.26-0.40 Max 1.00 Max 1.25 Max 0.060 Min 0.15 12.00-14.00 Max 0.60 Max 0.60
CNS standard martensite stainless steel
Mechanical properties of grade CNS 420F
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)
599 (≥) 649 (≥) 12 22 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 444
Physical properties of grade CNS 420F
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
387 (≥) 239 (≥) 33 34 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 421
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
924 454 575
CNS 420F 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
A 895 S42020 CNS China
Free-Machining Stainless Steel Plate, Sheet, and Strip
S42020 CNS China
Martensitic Chromium Stainless Steel
A 582 S42023 CNS China
Standard Specification for Free-Machining Stainless Steel Bars
A 895 S42023 CNS China
Free-Machining Stainless Steel Plate, Sheet, and Strip
S42023 CNS China
Martensitic Chromium Stainless Steel
A 582 S42023 CNS China
Standard Specification for Free-Machining Stainless Steel Bars
A 895 S42023 CNS China
Free-Machining Stainless Steel Plate, Sheet, and Strip
S42023 CNS China
Martensitic Chromium Stainless Steel
SUS 420F CNS China
Stainless steel bars
SUS 420F CNS China
Stainless steel wire rods
SUS 420F CNS China
Stainless steel wires
SUS 420F CNS China
Cold finished stainless steel bars
SUS 420F2 CNS China
Stainless steel bars
SUS 420F2 CNS China
Stainless steel wire rods
SUS 420F2 CNS China
Stainless steel wires
SUS 420F2 CNS China
Cold finished stainless steel bars
STS420F CNS China
Stainless steel bars
STS420F2 CNS China
Stainless steel bars
420F CNS China
Stainless steel wire rods
420F2 CNS China
Stainless steel wire rods

Enquiry