Haynes 214, also known as ANTON METAL, is a nickel-chromium-aluminum alloy that offers exceptional performance in high-temperature and corrosive environments. This alloy was developed by Haynes International Inc., a leading manufacturer of high-performance alloys for various industries such as aerospace, chemical processing, power generation, and others.
In this article, we will take a closer look at the chemical composition, mechanical properties, standards, specifications, and applications of Haynes 214.
Chemical Composition
Haynes 214 has a complex chemical composition, which contributes to its excellent performance in extreme environments. The table below shows the typical chemical composition of Haynes 214 (in weight percentage):
| Element | Minimum | Maximum |
|---|---|---|
| Nickel | 43.0 | 49.0 |
| Chromium | 20.0 | 24.0 |
| Iron | – | 3.0 |
| Molybdenum | – | 6.0 |
| Tungsten | – | 3.5 |
| Cobalt | – | 3.0 |
| Aluminum | 4.0 | 5.0 |
| Titanium | 2.2 | 2.8 |
| Boron | 0.015 | 0.045 |
| Carbon | – | 0.15 |
| Zirconium | – | 0.10 |
As you can see, Haynes 214 contains significant amounts of nickel and chromium, which provide excellent resistance to corrosion and oxidation. The addition of aluminum and titanium enhances the alloy’s strength and stability at high temperatures. Boron is added to improve the weldability of the alloy, while carbon and zirconium are included as impurity control elements.
Mechanical Properties
Haynes 214 exhibits excellent mechanical properties, making it suitable for use in extreme temperature and corrosive environments. The table below shows the typical mechanical properties of Haynes 214 at room temperature:
| Property | Value |
|---|---|
| Density | 8.19 g/cm3 |
| Melting Range | 1290-1330°C |
| Tensile Strength | 920 MPa |
| Yield Strength (0.2% offset) | 415 MPa |
| Elongation | 45% |
At high temperatures, Haynes 214 retains its strength and ductility thanks to its solid solution strengthening and precipitation hardening mechanisms. At 1093°C (2000°F), the alloy has a tensile strength of 625 MPa and a yield strength of 325 MPa. At 982°C (1800°F), the tensile strength is 550 MPa and the yield strength is 275 MPa. These properties make Haynes 214 an ideal material for high-temperature applications such as gas turbine engine components, furnace hardware, and heat exchangers.
Standards and Specifications
Haynes 214 is covered by various standards and specifications, including AMS 5732, AMS 5861, and ASTM B637. These standards specify the chemical composition, mechanical properties, and other requirements that the alloy must meet for specific applications. For example, AMS 5732 covers the requirements for bars and wire of various sizes, while AMS 5861 covers the requirements for sheet, strip, and plate.
Applications
Haynes 214 has a wide range of applications in industries where high-performance alloys are required. Some of the most common applications include:
- Gas turbine engine components: Haynes 214 is used in the manufacture of various engine components such as combustors, transition ducts, and turbine shrouds. These components operate under high temperatures and corrosive environments, making Haynes 214 an ideal material for their construction.
- Heat exchangers: Haynes 214 is used in the manufacture of heat exchangers that operate under high temperatures and corrosive environments. The alloy’s excellent resistance to thermal fatigue and oxidation makes it suitable for use in these demanding applications.
- Chemical processing equipment: Haynes 214 is used in the manufacture of chemical processing equipment such as reactors and piping systems. The alloy’s excellent corrosion resistance and mechanical properties make it suitable for use in harsh chemical environments.
- Furnace hardware: Haynes 214 is used in the construction of furnace hardware such as muffles and retorts. The alloy’s high-temperature strength and thermal stability make it suitable for use in these demanding applications.
- Aerospace components: Haynes 214 is used in the manufacture of various aerospace components such as exhaust systems, afterburners, and rocket motor cases. The alloy’s high-temperature strength and resistance to thermal cycling make it suitable for use in these demanding applications, where reliability and durability are crucial.
- Power generation equipment: Haynes 214 is used in the manufacture of power generation equipment such as steam turbine components, boiler tubes, and gasifier internals. The alloy’s excellent high temperature strength and corrosion resistance make it suitable for use in these harsh environments.Conclusion
Haynes 214 is a high-performance nickel-chromium-aluminum alloy that offers exceptional performance in extreme temperature and corrosive environments. The alloy’s complex chemical composition and solid solution strengthening and precipitation hardening mechanisms contribute to its excellent mechanical properties and suitability for use in various industries. Standards and specifications such as AMS 5732, AMS 5861, and ASTM B637 ensure that the alloy meets the requirements for specific applications.
With its wide range of applications in industries such as aerospace, chemical processing, power generation, and others, Haynes 214 has become a popular choice for high-performance alloys. Its ability to withstand high temperatures, thermal cycling, and corrosion make it an ideal material for critical applications where reliability and durability are essential.
Post time: May-27-2023
