M-252 Stainless Steels to SAE J 467 (1968)

M-252 - Specification & Application

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

Special Purpose Alloys ("Superalloys")

Chemical composition(wt.%) of M-252 grade: to SAE J 467 (1968)

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.15
Si - 0.50
Mn - 0.50
Ni - remaining
Cr - 20.00
Al - 1.00
Cu - -
Ti - 2.60
Fe - -
Mo - 10.00
Co - 10.00
B - 0.005

M-252 - Detail

Special Purpose Alloys ("Superalloys")

Mechanical properties of grade M-252 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)
987 (≥) 147 (≥) 41 13 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 413

Physical properties of grade M-252 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
244 (≥) 758 (≥) 22 22 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 244
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
237 428 796

Equivalent Grade

Equivalent Products

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