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CNS 403 Application:CNS standard martensite stainless steel
Category Type Steel grade Standard Country
Grades Special Alloy CNS 403 CNS China

Chemical composition % of the ladle analysis of grade CNS 403

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%)
Max 0.15 Max 0.50 Max 1.00 Max 0.040 Max 0.030 11.50-13.00 Max 0.60
CNS standard martensite stainless steel
Mechanical properties of grade CNS 403
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)
757 (≥) 439 (≥) 31 34 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 341
Physical properties of grade CNS 403
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
461 (≥) 146 (≥) 14 44 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 343
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
261 297 785
CNS 403 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
GH4033 CNS China
Classification and designation for superalloys and high temperature intermetallic materials
GH4037 CNS China
Classification and designation for superalloys and high temperature intermetallic materials
A 240 S30403 CNS China
Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
A 249 S30403 CNS China
Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes
A 269 S30403 CNS China
Seamless and Welded Austenitic Stainless Steel Tubing for General Service
A 270 S30403 CNS China
Seamless and Welded Austenitic Stainless Steel Sanitary Tubing
A 276 S30403 CNS China
Stainless Steel Bars and Shapes
A 314 S30403 CNS China
Stainless Steel Billets and Bars for Forging
A 358 S30403 CNS China
Electric-Fusion-Welded Austenitic Chromium-Nickel Stainless Steel Pipe for High-Temperature Service and General Applications
A 409 S30403 CNS China
Welded Large Diameter Austenitic Steel Pipe for Corrosive or High-Temperature Service
A 473 S30403 CNS China
Stainless Steel Forgings
A 478 S30403 CNS China
Chromium-Nickel Stainless Steel Weaving and Knitting Wire
A 493 S30403 CNS China
Stainless Steel Wire and Wire Rods for Cold Heading and Cold Forging
A 580 S30403 CNS China
Stainless Steel Wire
A 632 S30403 CNS China
Seamless and Welded Austenitic Stainless Steel Tubing (Small-Diameter) for General Service
A 666 S30403 CNS China
Annealed or Cold-Worked Austenitic Stainless Steel Sheet, Strip, Plate, and Flat Bar
A 688 S30403 CNS China
Welded Austenitic Stainless Steel Feedwater Heater Tubes
A 778 S30403 CNS China
Welded, Unannealed Austenitic Stainless Steel Tubular Products
A 813 S30403 CNS China
Single- or Double-Welded Austenitic Stainless Steel Pipe
A 814 S30403 CNS China
Cold-Worked Welded Austenitic Stainless Steel Pipe

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