MAR-M 246 Superalloys

MAR-M 246 - Specification & Application

cast superalloy

Chemical composition(wt.%) of MAR-M 246 grade:

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.13 0.17
Si - 0.20
Mn - 0.20
S - 0.015
Cr 8.00 10.00
Ni - Bal
Mo 2.25 2.75
Co 9.00 11.00
W 9.00 11.00
Al 5.25 5.75
Cu - 0.10
Ti 1.25 1.75
Fe - 1.00
Ta 1.25 1.75
Zr 0.03 0.08
B 0.010 0.020

MAR-M 246 - Detail

cast superalloy of MAR-M 246

Mechanical properties of grade MAR-M 246

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)
284 (≥) 998 (≥) 31 14 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 321

Physical properties of grade MAR-M 246

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
411 (≥) 325 (≥) 11 42 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 412
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
642 229 291

Equivalent Grade

Equivalent Products

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