Incoloy800 nickel-chromium-iron alloy high-temperature application and research
Incoloy is a nickel-chromium-iron alloy designed to resist oxidation and carburization when the temperature rises. This alloy is a nickel-iron-chromium-iron nickel-based corrosion-resistant alloy. This alloy has good corrosion resistance in high-temperature water vapor, including steam-air-CO2 mixed gas. In some high-temperature and high-pressure water media, its stress corrosion resistance is significantly better than 18-8 stainless steel and Inconel600; it also has good corrosion resistance in H2+H2S medium, and in alkaline media containing NaOH, its stress corrosion resistance is better than Inconel600 and other high-nickel alloys.
Today Gnee will introduce this well-known Incoloy800 alloy material to you.
Incoloy 800
Material grade: Incoloy 800 nickel-based alloy
US grade: NO8800
German grade: X2NiCrAlTi3220
1. Overview of Incoloy 800 (N08800) nickel-based alloy:
The alloy has a high chromium content and sufficient nickel content, so it has a high resistance to high-temperature corrosion and is widely used in industry. It has excellent resistance to stress corrosion cracking in chlorides, low-concentration NaOH aqueous solutions and high-temperature and high-pressure water, so it is used to manufacture equipment resistant to stress corrosion cracking. The corrosion resistance is better than that of general austenitic stainless steel and Inconel 600 alloy; in the manufacture of corrosion-resistant stress cracking equipment, it is better than Inconel 600 and Monel 400 alloys.
Incoloy 800 is a high-temperature resistant alloy with better temperature resistance than carbon steel. It has excellent resistance to nitric acid corrosion and can maintain 30% of its strength at room temperature. Even in a high-temperature environment of 1000℃, its strength will not be reduced. Therefore, it is also widely used in the petroleum industry and chemical industry.
Thanks to its crystal structure, Incoloy 800 has extremely strong corrosion resistance. In the petrochemical industry, it can replace heat-resistant steel and save a lot of production costs. In addition, it can also be used to make heaters, sintering devices and supporting equipment.
The main components of Incoloy 800 are copper, nickel, chromium, titanium, niobium, zirconium, molybdenum, cobalt, etc., with a certain silicon content and a relatively small total carbon content. Its mechanical properties are good, its yield strength is generally above 590 MPa, its compressive strength rate is above 400 MPa, and its elongation is as high as 30%, which enables it to withstand wear and some large outer diameter deformation in emergency situations.
Incoloy 800 has excellent corrosion resistance and high temperature resistance, and has been widely used in various industries and other fields. For example, it can be used to manufacture aerospace devices and heat exchange devices. Today, Incoloy 800 has become the most reliable high-temperature resistant material for ordinary users. It can extend the service life of products at high temperatures by at least three times, and it also has outstanding performance, making it play an extremely important role in aerospace and other fields.
Incoloy800 is a high-temperature corrosion-resistant alloy composed of Fe-Ni-Cr components, with excellent compressive and tensile properties. Its cold working performance is also very good, and it can be used to prepare cold-processed structural parts, such as cold bending, cold drawing, cold folding, etc.
The high-temperature corrosion resistance of Incoloy800 is suitable for use in application environments below 800℃, such as: turbine rotor blades in electrical equipment, furnace walls of thermal power plants, and low-pressure headers of turbines. It can also be used as a high-temperature insulation bracket for porous molecular sieves, and is widely used in some catalytic reactors and chemical equipment.
The chemical properties of Incoloy800 are very excellent, and it can resist friction, high-temperature corrosion and catalytic corrosion: ammonium nitrate and hydroxides cannot corrode, and it has good oxidation resistance. At the same time, Incoloy800 has good thermal stability, can adapt to a wide range of temperature changes, and is safe and reliable for long-term safe use.
In addition, Incoloy800 has many advantages: it has extremely high corrosion resistance; it has good high temperature strength and dimensional accuracy; it has high adaptability in the smelting process and can be prepared by many smelting processes; its surface quality is also relatively good, all of which make it very popular under high temperature corrosion conditions.
In short, Incoloy800 is a high temperature corrosion-resistant alloy with excellent performance, which is widely used in power, steam turbine, light industry, chemical industry and other industries. Due to its excellent performance, Incoloy800 is highly favored in the market and has been well received by customers.
