AFNOR X33CrNiMnN23-8

Grades | Stainless Steels | X33CrNiMnN23-8

AFNOR X33CrNiMnN23-8

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X33CrNiMnN23-8 Application:Valve steels and alloys for internal combustion engines

Chemical composition(mass fraction)(wt.%) of the X33CrNiMnN23-8
Elements Min.（≥） Max.（≤） Similar Remarks
C 0.28 0.38
Si 0.50 1.50
Mn 1.50 3.50
P - 0.045
S - 0.030
Cr 22.00 24.00
Ni 7.00 9.00
Mo - 0.50
W - 0.50
N 0.25 0.35

Mechanical properties of grade X33CrNiMnN23-8

Yield
Rp0.2 (MPa)		 Tensile
Rm (MPa)		 Impact
KV (J)		 Elongation
A (%)		 Reduction in cross section on fracture
Z (%)		 As-Heat-Treated Condition HBW
131 (≥) 418 (≥) 24 23 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 443

Physical properties of grade X33CrNiMnN23-8

Property Density
kg/dm3		 Temperature T
°C/F		 Specific heat
J / kgK		 Thermal conductivity
W/mK		 Electric resistance
µΩ·cm
688 (≥) 663 (≥) 42 12 23 Solution and Aging, Annealing, Ausaging, Q+T,etc
Temp.
°C/°F		 Creep strain limit
(10000h)
(Rp1,0) N/mm2		 Creep rupture strength
(10000h)
(Rp1,0) N/mm2		 - - -
848 465 998 - - -

X33CrNiMnN23-8 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