AFNOR X40CrSiMo10-2

Grades | Stainless Steels | X40CrSiMo10-2

AFNOR X40CrSiMo10-2

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X40CrSiMo10-2 Application:Valve steels and alloys for internal combustion engines

Chemical composition(mass fraction)(wt.%) of the X40CrSiMo10-2
Elements Min.（≥） Max.（≤） Similar Remarks
C 0.35 0.45
Si 2.00 3.00
Mn - 0.80
P - 0.040
S - 0.030
Cr 9.50 11.50
Ni - 0.50
Mo 0.80 1.30

Mechanical properties of grade X40CrSiMo10-2

Yield
Rp0.2 (MPa)		 Tensile
Rm (MPa)		 Impact
KV (J)		 Elongation
A (%)		 Reduction in cross section on fracture
Z (%)		 As-Heat-Treated Condition HBW
639 (≥) 658 (≥) 33 13 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 412

Physical properties of grade X40CrSiMo10-2

Property Density
kg/dm3		 Temperature T
°C/F		 Specific heat
J / kgK		 Thermal conductivity
W/mK		 Electric resistance
µΩ·cm
782 (≥) 449 (≥) 41 11 43 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		 - - -
955 459 899 - - -

X40CrSiMo10-2 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