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GB MAR-M 246 Details

cast superalloy of MAR-M 246

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MAR-M 246 Application:cast superalloy
Category Type Grade Designations
Grades Superalloys MAR-M 246 China - GB ,
Chemical composition(mass fraction)(wt.%)
Elements Min.(≥) Max.(≤)
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
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)
816 (≥) 948 (≥) 13 23 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 411
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
197 (≥) 244 (≥) 31 24 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 331
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
613 572 972
MAR-M 246 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
Cross Reference Table(Equivalent Grade)
Grade Standard Country Application
MAR-M 246 GB China
cast superalloy

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