Mar-M509
Mar-M509 is a cobalt based precipitation hardening equiaxed cast superalloy, with carbide as the main strengthening phase and service temperature below 1050 ℃.
Equivalent Grades
Trademark | GB | GOST | ASTM | UNS | DIN | W.Nr. | NF | BS | JIS | SS |
– | K6509 | – | Mar-M509 | – | – | – | – | – | – | – |
Chemical Composition, %
Alloy | C | Si | Mn | P | S | Cr | Ni | Co | W | Ti | Ta | Zr | Fe |
Mar-M509 | 0.55-0.65 | ≤0.4 | ≤0.1 | ≤0.015 | ≤0.015 | 23.0-24.0 | 9.0-11.0 | Bal | 6.5-7.5 | 0.15-0.25 | 3.0-4.0 | 0.3-0.6 | ≤1.5 |
Typical Physical and Mechanical Properties (RT, Solution Annealed)
Density, g/cm3 | Melting Point, ℃ | Tensile Strength, MPa | Yield Strength, MPa | ELongation, % | Hardness, HRB |
8.86 | 1346-1395 | 780 | 465 | 5 | / |
Available Products and Specifications
Rod, Bar, Wire and Forgings | – |
Plate, Sheet and Strip | – |
Pipe and Tube | – |
Welding Product | – |
Others | – |
Features
The Cr content in the alloy accounts for about 23%, and the carbide forming elements such as tantalum, tungsten and titanium are added at the same time, so the alloy has excellent heat-resistant corrosion resistance and high temperature strength.
Applications
The alloy is only used to make hot end components such as gas turbine engine turbine blades working below 1050 degrees. It is recommended to be applied to engines with harsh service conditions such as aeroengines and advanced marine engines