X-40 Stainless Steels to SAE J 467 (1968)

X-40 - Specification & Application

  • SAE J 467 (1968) - Special Purpose Alloys ("Superalloys")

Special Purpose Alloys ("Superalloys")

Chemical composition(wt.%) of X-40 grade: to 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

X-40 - Detail

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)
898 (≥) 182 (≥) 14 42 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 423

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
393 (≥) 163 (≥) 43 31 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 314
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
879 466 412

Equivalent Grade

Equivalent Products

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