What is Inconel Alloy 751?
What is Inconel Alloy 751?
Inconel Alloy 751 is a precipitation hardening high temperature superalloy.
This alloy is similar to Inconel X-750, but it increases the durability strength by increasing the aluminum (Al) content, allowing operating temperatures to reach approximately 870°C. Inconel Alloy 751 has the following features:
High temperature wear resistance: At high temperatures, Inconel Alloy 751 exhibits good wear resistance, which is an important reason why it is widely used in high temperature components such as internal combustion engine exhaust valves.
Corrosion resistance and oxidation resistance: The alloy not only maintains good strength at high temperatures, but also has excellent corrosion resistance and oxidation resistance, and can resist the erosion of impurities in the exhaust stream such as sulfur, bromine, and chlorine.
Hot Hardness: Due to its excellent hot hardness, Inconel Alloy 751 exhibits good wear resistance in the valve seat area, which is essential to ensure long-term stable operation.
Chemical composition: It is mainly composed of nickel (Ni) and chromium (Cr), and contains titanium (Ti), niobium (Nb), aluminum (Al) and other elements, which together provide the alloy with its unique properties.
Inconel Alloy 751 is widely used in valve manufacturing for aviation, industrial gas turbines and high-load internal combustion engines due to its excellent high temperature performance and corrosion resistance. It is an important material designed to meet the needs of engineering materials working in extreme environments.
