GMR235
GMR235 is a nickel base precipitation hardening equiaxed grain casting superalloy with service temperature below 850 ℃. The alloy has simple composition, contains high content of B element, does not contain rare and precious elements, and has low cost.
Equivalent Grades
| Trademark | GB | GOST | ASTM | UNS | DIN | W.Nr. | NF | BS | JIS | SS |
| – | K406 | – | GMR235 | – | – | – | – | – | – | – |
Chemical Composition, %
| Alloy | C | Si | Mn | P | S | Cr | Ni | B | Zr | Mo | Al | Ti | Fe |
| GMR235 | 0.1-0.2 | ≤0.3 | ≤0.1 | ≤0.02 | ≤0.01 | 14.0-17.0 | Bal | 0.05-0.10 | 0.03-0.08 | 4.5-6.0 | 3.25-4.00 | 2.0-3.0 | ≤1.0 |
Typical Physical and Mechanical Properties (RT, Solution Annealed)
| Density, g/cm3 | Melting Point, ℃ | Tensile Strength, MPa | Yield Strength, MPa | ELongation, % | Hardness, HRB |
| 8.05 | 1260-1345 | 730 | – | 7 | / |
Available Products and Specifications
| Rod, Bar, Wire and Forgings | – |
| Plate, Sheet and Strip | – |
| Pipe and Tube | – |
| Welding Product | – |
| Others | – |
Features
The alloy has medium durability, good resistance to high oxidation and heat corrosion, and good casting and welding process properties.
Applications
It is suitable for making gas turbine rotor blades, guide vanes and other high-temperature parts that work for a long time below 850 degrees.
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