Grades | Stainless Steels | X-40

SAE X-40 ( Precipitation-Hardening )

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X-40 Application:Special Purpose Alloys ("Superalloys")

Chemical composition(mass fraction)(wt.%) of the X-40
Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.50
Si - 0.75
Mn - 0.75
Cr - 25.50
Ni - 10.50
Mo - -
Co - remaining
W - 7.50
Al - -
Cu - -
Ti - -
Fe - 1.50

Mechanical properties of grade X-40

Yield
Rp0.2 (MPa)
Tensile
Rm (MPa)
Impact
KV (J)
Elongation
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition HBW
428 (≥) 114 (≥) 11 21 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 131

Physical properties of grade X-40

Property Density
kg/dm3
Temperature T
°C/F
Specific heat
J / kgK
Thermal conductivity
W/mK
Electric resistance
µΩ·cm
915 (≥) 748 (≥) 22 12 22 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
- - -
892 412 177 - - -

X-40 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