W.Nr 2.4665 Nickel Alloy strip ASTM B435, B906 UNS N06002 hastelloy X strip | foil
Hastelloy X exhibits good high-temperature strength due to its unique combination of alloying elements and microstructure. Here are some key factors that contribute to the high-temperature strength of Hastelloy X:
Nickel-Based Superalloy: Hastelloy X is a nickel-based superalloy, which inherently provides high-temperature strength and excellent mechanical properties at elevated temperatures. Nickel-based superalloys are known for their ability to maintain strength and resistance to deformation even at high temperatures.
Solid Solution Strengthening: The alloying elements in Hastelloy X, such as chromium, molybdenum, cobalt, and tungsten, form a solid solution within the nickel matrix. This solid solution strengthening mechanism enhances the material's resistance to deformation and creep at high temperatures.
High Chromium Content: The chromium content in Hastelloy X contributes to the formation of a protective oxide layer on the surface of the material at high temperatures. This oxide layer acts as a barrier, preventing further oxidation and maintaining the material's strength and integrity at elevated temperatures.
Microstructural Stability: Hastelloy X is designed to maintain its microstructure and mechanical properties even after prolonged exposure to high temperatures. The alloy's composition and heat treatment processes help to stabilize the microstructure, preventing grain growth and maintaining strength at elevated temperatures.
Resistance to Thermal Fatigue: Hastelloy X exhibits good resistance to thermal fatigue, which is crucial for components operating in high-temperature cyclic loading conditions. The alloy's high-temperature strength allows it to withstand thermal cycling without significant degradation in performance.
Hastelloy X is commonly used in high-temperature applications such as gas turbine engines, industrial furnace components, and structural components for aerospace and power generation industries. Its unique combination of properties makes it suitable for environments where high temperatures, oxidation, and corrosion resistance are critical requirements.
The Chemical Composition of Hastelloy X, % | |
---|---|
Ni | balance |
Cr | 20.5-23.0 |
Fe | 17.0-20.0 |
Mo | 8.0-10.0 |
Co | 0.5-2.5 |
W | 0.20-1.00 |
C | 0.05-0.15 |
Mn | ≤1.00 |
Si | ≤1.00 |
P | ≤0.040 |
S | ≤0.030 |
Density | Melting Range | Specific Heat | Thermal Conductivity | Electrical Resistivity |
---|---|---|---|---|
g/cm3 | °C | J/kg.k | W/m.k | µΩ·m |
8.22 | 1260-1355 | 486 | 9.1 | 1180 |
Product Form | Standard |
---|---|
Rod | ASTM B572 |
Plate, sheet and strip | ASTM B435, B906 |
Seamless pipe and tube | ASTM B622 |
Welded pipe | ASTM B619, B775 |
Welded tube | ASTM B626, B751 |
Welding fitting | ASTM B366 |
Billet and bar for reforging | ASTM B472 |