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SAE X-40 Details

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

Category Type Grade Microstructure Designations
Grades Stainless Steels X-40 Precipitation-Hardening USA - SAE , SAE J 467 (1968) - Special Purpose Alloys ("Superalloys")

Chemical composition(wt.%) of X-40 grade: SAE J 467 (1968)

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
Special Purpose Alloys ("Superalloys")

Mechanical properties of grade X-40 SAE J 467 (1968)

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)
916 (≥) 945 (≥) 34 33 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 224

Physical properties of grade X-40 SAE J 467 (1968)

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
592 (≥) 421 (≥) 24 31 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 143
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
155 282 812

X-40 - Form of Supply

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
X-40 SAE USA
Special Purpose Alloys ("Superalloys")

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