Inconel 718 bolts are a type of nickel-based high-temperature high-strength alloy bolts that exhibit excellent comprehensive performance in the temperature range of -253 to 700°C, especially with very high yield strength below 650°C. These bolts possess outstanding fatigue resistance, radiation resistance, oxidation resistance, and corrosion resistance, while maintaining good machinability, weldability, and long-term organizational stability. These characteristics have led to the widespread application of Inconel 718 bolts in various industries.
Application areas include but are not limited to:
- Aerospace: Inconel 718 bolts are suitable for aircraft engines, rocket engines, satellite structures, and other components that can withstand extreme temperature changes and mechanical stresses.
- Oil and Chemical Industry: In the oil and chemical industry, these bolts are used to manufacture high-temperature and high-pressure containers, pipelines, and other critical components that need to operate stably in harsh chemical environments over the long term.
- Energy Industry: Inconel 718 bolts are used in nuclear power stations for reactor components and power generation facilities to ensure the safe operation of equipment under high temperature and pressure conditions.
- Marine Engineering: Due to their excellent corrosion resistance, Inconel 718 bolts are also widely used in marine engineering, such as deep-sea drilling platforms and underwater pipelines.
- Medical Devices: Inconel 718 bolts are also used in the manufacture of medical equipment, such as surgical instruments, because the alloy has biocompatibility and corrosion resistance.
The chemical composition of Inconel 718 bolts includes nickel, chromium, iron, molybdenum, niobium, carbon, manganese, silicon, sulfur, copper, aluminum, titanium, and boron. The specific proportions of these elements give it excellent mechanical properties and corrosion resistance. At room temperature, Inconel 718 alloy shows good mechanical properties, with high tensile strength, yield strength, elongation, and hardness all meeting high standards.
The manufacturing process of Inconel 718 bolts includes hot forging, heat treatment, grinding, turning, and thread rolling. Hot forging and heat treatment are key processes that require precise control to ensure product quality. In addition, Inconel 718 alloy has good weldability and can be welded by methods such as TIG welding, electron beam welding, seam welding, and spot welding.
In summary, Inconel 718 bolts play a key role in high-demand industrial applications due to their outstanding performance.
