Inconel 725 is a nickel-chromium-molybdenum-niobium alloy. It is known for its excellent corrosion resistance. It is highly suited for high-performance applications in demanding environments. It is used in a number of industries, including marine and naval systems. It also possesses excellent resistance to crevice corrosion.
It is often used in marine and naval systems, particularly for landing nipples, tubing hangars, and polished bore receptacles. It is also suitable for jet engines, as it possesses good heat resistance. It is also used in engine exhaust piping and heat shields.
Inconel has a high oxidation resistance at high temperatures. It is particularly resistant to chlorides and hydrogen sulfide. It is also resistant to stress-corrosion cracking. The resistance to hydrogen embrittlement makes it a better choice for marine components.
Inconel 725 is a good choice for applications that require high strength. This alloy can be applied to non-uniform sections, especially when a strong crevice attack is required. It is particularly well-suited for sour gas service, where it can withstand stress-corrosion cracking.
The age-hardening response of this alloy is notably improved by the addition of titanium. It can also be strengthened through heat treatment. It is also a candidate for marine systems, such as shipbuilding and oil drilling.
Alloy 725 is included in NACE MR0175/ISO 15156-3. It is also a member of the API 6ACRA family of metal alloys. The mechanical properties of this alloy are given in the following table.
The excellent chemical and thermal resistance of this alloy makes it ideal for aerospace parts and other materials that need to be exposed to a variety of high-temperature environments. It is also a great choice for aircraft parts that need to be exposed to corrosive environments.