About Alloy
Haynes 230 (UNS N06230 / W.Nr. 2.4733) is a nickel-chromium-tungsten-molybdenum superalloy known for its exceptional high-temperature strength, excellent resistance to oxidation, and good fabricability. It is widely used in a variety of demanding applications, particularly in the aerospace, gas turbine, and chemical processing industries.
The alloy’s high-temperature strength and creep resistance make it an ideal material for components in gas turbine engines, such as turbine blades, combustion chambers, and exhaust systems. Its ability to withstand extreme temperatures and harsh environments makes it a preferred choice for critical parts that are subjected to high stress and heat.
In addition to its impressive mechanical properties, Haynes 230 also exhibits excellent resistance to corrosion and oxidation at elevated temperatures, making it suitable for use in aggressive chemical environments and high-temperature processing applications. This corrosion resistance, combined with its high strength and durability, makes it a valuable material for components in chemical processing equipment, such as reactors, heat exchangers, and piping systems.
The alloy’s exceptional thermal stability and resistance to thermal fatigue further enhance its suitability for high-temperature applications, ensuring reliable performance and longevity in demanding operating conditions.
Haynes 230 is typically produced using vacuum induction melting (VIM) and vacuum arc remelting (VAR) processes to ensure high purity and uniformity of the material. It can be further processed through hot working, cold working, and heat treatment to achieve the desired mechanical properties and dimensional stability.
Overall, Haynes 230 is a highly versatile and reliable material that offers exceptional performance in high-temperature and corrosive environments, making it a preferred choice for critical components in aerospace, gas turbine, and chemical processing applications. Its combination of high strength, excellent oxidation resistance, and thermal stability makes it an indispensable material for industries that demand uncompromising performance under extreme conditions.
Product Form
Rod, Bar, Wire and Forgings: AMS 5891, ASME SB572, ASTM B572, ASTM B564, AMS 5839
Plate, Sheet and Strip: AMS 5878, ASTM B435, ASME SB435
Pipe and Tube: ASME SB619, ASME SB626, ASTM B619, ASTM B626
Welding Product: A5.14 / ERNiCrWMo-1, A5.11 / ENiCrWMo-1
Others: DIN 17744, NiCr22W14Mo
Chemical Composition
| Alloy | C | Si | Mn | P | S | Cr | Ni | Co | Mo | W | Al | Ti | Cu | La | B | Fe |
| Haynes 230 | 0.05-0.15 | 0.25-0.75 | 0.30-1.00 | ≤0.03 | ≤0.015 | 20.0-24.0 | Bal | ≤5.0 | 1.0-3.0 | 13.0-15.0 | 0.2-0.5 | ≤0.1 | ≤0.50 | 0.005-0.05 | ≤0.015 | ≤3.0 |
Property
| Density, g/cm3 | Melting Point, ℃ | Tensile Strength, MPa | Yield Strength, MPa | ELongation, % | Hardness, HRB |
| 8.97 | 1301-1371 | 837 | 417 | 47 | / |
Application
Haynes 230 is a nickel-chromium-tungsten-molybdenum alloy known for its exceptional high-temperature strength, oxidation resistance, and thermal stability. It is used in various industries where these properties are crucial:
Aerospace: Haynes 230 finds application in aerospace components such as gas turbine engines, where it is used for parts like turbine blades, combustors, and afterburner components. Its ability to withstand high temperatures and stresses encountered during flight makes it suitable for enhancing engine performance and reliability.
Industrial Gas Turbines: In the industrial sector, Haynes 230 is used in gas turbine engines for power generation. It helps maintain efficiency and reliability in high-temperature environments, ensuring prolonged operational life and reduced maintenance costs.
Heat Treatment Furnaces: Due to its high-temperature strength and excellent thermal stability, Haynes 230 is employed in heat treatment furnaces. It can withstand the extreme temperatures required for processing metals and alloys, ensuring consistent performance over extended periods.
Petrochemical Industry: Haynes 230 is utilized in the petrochemical industry for components exposed to high temperatures and corrosive environments. It is used in reactors, furnace components, and piping systems where resistance to oxidation, sulfidation, and carburization is critical.
Power Generation: It is used in various components of power generation systems, including steam turbines, boiler components, and exhaust systems. Its high-temperature strength and resistance to corrosion make it ideal for maintaining efficiency and reliability in power plants.
Nuclear Engineering: In nuclear reactors, Haynes 230 is employed in components such as reactor internals, heat exchangers, and furnace components. Its ability to withstand high temperatures, radiation exposure, and corrosive environments contributes to the safety and efficiency of nuclear power generation.
Chemical Processing: Haynes 230 finds application in chemical processing equipment such as reactors, vessels, and piping systems where resistance to oxidation and corrosion from acids, alkalis, and other chemicals is essential.
Overall, Haynes 230's combination of high-temperature strength, oxidation resistance, and thermal stability makes it a preferred choice in industries where reliability, performance under extreme conditions, and longevity are critical considerations.
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