UNS N06625 is the material number of Inconel 625, which refers to the standard specification of Inconel 625 developed by the American Society for Testing and Materials (ASTM). The following are common standards and specifications for INCONEL 625 (UNS N06625):
1.ASTM B443: This is the Inconel 625 standard specification for steel plates, sheets, and strips, specifying standards for the chemical composition, mechanical properties, and processing requirements of these products.
2.ASTM B444: Covers the standard specification for Inconel 625 seamless and welded pipes, including requirements for the size, chemical composition, mechanical properties of the tubes, etc.
3.ASTM B564: This is the Inconel 625 standard specification for pipe fittings, flanges, and fittings, specifying requirements for the chemical composition, heat treatment, mechanical properties, and other aspects of pipe fittings and fittings.
4.AMS 5599: is the standard specification for Inconel 625 sheets, strips and sheets in the Aerospace Materials Specification.
5. aws a5.14: The standard specification of Inconel 625 welding consumables issued by the American Welding Society, including the requirements for the chemical composition, mechanical properties and welding methods of welding wires and welding consumables.
Inconel 625 (UNS N06625) is a common nickel-based alloy that can be heat treated to improve its microstructure and properties, as well as its strength and corrosion resistance. The following are common heat treatment methods for Inconel 625:
1.Solution Annealing: Inconel 625 is typically heated to about 1090°C (2000°F) and maintained at this temperature for a sufficient period of time to allow the alloying elements in the alloy to reach a uniform solution state. It is then cooled rapidly to avoid precipitation hardening during the cooling process. Solution treatment helps to restore the plasticity and corrosion resistance of the alloy.
2.Aging treatment: After solution treatment, Inconel 625 can be further aged. It is usually held at about 760°C (1400°F) for a period of time to promote the formation of the precipitation-hardening phase and improve the strength and hardness of the alloy.
3.Cooling method: In the heat treatment process, it is very critical to control the cooling rate of the alloy. Rapid cooling, such as water quenching or gas quenching, should generally be used to prevent excessive precipitation of the precipitation-hardening phase.
4.Post-Heat Treatment: After heat treatment, the performance of Inconel 625 is typically inspected to ensure that it meets the expected mechanical and corrosion resistance requirements.
Inconel 625 (UNS N06625) is a superalloy with excellent mechanical properties for engineering applications in a variety of high-strength, high-temperature, and corrosive environments. The following are the common mechanical properties of Inconel 625:
1.Tensile Strength: The tensile strength of Inconel 625 typically ranges from 650 MPa (94,000 PSI) to 1200 MPa (175,000 PSI), depending on the material's state of heat treatment and processing technology.
2.Yield Strength: The yield strength of Inconel 625 typically ranges from 240 MPa (35,000 PSI) to 930 MPa (135,000 PSI) and is also affected by heat treatment and processing methods.
3.Elongation: Generally, the elongation at break of Inconel 625 is about 30% to 60% at room temperature, showing good elongation performance.
4.Hardness: The hardness of Inconel 625 is typically between 150 and 240 HB (Brinell hardness), depending on the state of heat treatment of the material.
5.Flexural strength: Inconel 625 also exhibits very good flexural strength, making it suitable for complex loads and torsional forces.
The main chemical composition of Inconel 625 (UNS N06625) includes the following elements:
1.Nickel (Ni): occupies the main component of the alloy, usually with a content of more than 58%, providing good corrosion resistance and high temperature strength.
2.Chromium (Cr): typically contains about 20-23% and provides resistance to oxidation and corrosion.
3.Molybdenum (molybdenum, mo): usually contains about 8-10%, which improves the corrosion resistance and high-temperature strength of the alloy.
4.Iron (Iron, Fe): Iron is generally low in content and is mainly present as a solution-strengthening element.
5.Cobalt (CO): A small amount of cobalt is sometimes added to improve the high-temperature strength and oxidation resistance of the alloy.
6.Silicon (Si): The low content of silicon is often used to improve the corrosion resistance of alloys.
7.Manganese (MN): Manganese is usually low in content and helps to improve the strength and toughness of the alloy.
8.Carbon (C): Usually very low in content, which helps to control the amount of impurities such as carbon in alloys.
Here are some of the most common uses of Inconel 625:
1.Aerospace: Inconel 625 is widely used in the aerospace industry to manufacture aero engine parts, turbine blades, burner parts, etc., with excellent high-temperature strength and oxidation resistance.
2.Chemical industry: Due to its excellent corrosion resistance, Inconel 625 is often used in the chemical industry to manufacture reactors, heat exchangers, pump parts, chemical vessels and other equipment that require high corrosion resistance.
3.Offshore engineering: Inconel 625 exhibits good corrosion resistance in the marine environment, and is often used in the manufacture of parts and equipment in seawater corrosive environments, such as offshore platform accessories, marine exploration equipment, etc.
4.Medical: Inconel 625 is also used in the medical field, often used in the manufacture of artificial joints, implants and other medical devices, due to its good biocompatibility and corrosion resistance.
5.Pressure vessels: Inconel 625 excels in the manufacture of high-temperature and high-pressure vessels and piping systems, and is able to withstand high-pressure, high-temperature environments under extreme operating conditions.
Overall, Inconel 625 is a versatile alloy that is widely used in aerospace, chemical, marine, medical, and a variety of other applications to manufacture a wide range of components, equipment, and devices that provide reliable performance and long-lasting durability under extreme environmental conditions.