Aerospace engine: Turbine blade fasteners are manufactured using nickel-based high-temperature alloys (such as GH4049), maintaining a tensile strength of ≥1000 MPa at 600–900℃, processed through die forging technology.

Spacecraft structure: Components connecting the combustion chamber of rocket engines must withstand instantaneous high temperatures (>1200℃) and vibration loads.

Nuclear power plant: Reactor pressure vessel bolts must meet a lasting strength of ≥95 MPa (at 700°C/100,000 hours), preventing hydrogen embrittlement and stress corrosion cracking.

Gas turbine: High-temperature bolts (such as A286 alloy) fix turbine discs and must undergo creep limit tests (1% total deformation/1000 hours).

Refining and processing unit: Hydrogenation reactor bolts need long-term use under high temperature and pressure (400℃/20MPa), and the material must pass the hydrogen-induced delayed fracture test.

Mold manufacturing: Fastening components of composite material molds need to match a low thermal expansion coefficient (CTE ≤ 10⁻⁶/℃) to maintain dimensional stability.

New energy vehicles: Motor shaft bolts made of titanium alloy (such as TC4), with tensile strength up to 900 MPa and no magnetic interference. The tapping process needs to be optimized to reduce work hardening.