Screws, Rivets, and Nuts

Screws, Rivets, and Nuts Properties

• Extremely High Heat Resistance: Molybdenum has a melting point of 2620°C, and tungsten reaches 3420°C. They can maintain strength and shape for long periods in high-temperature environments above 1000°C, whereas ordinary steel would have already softened or melted.

• Low Thermal Expansion Coefficient: Their expansion volume is minimal when heated, ensuring tight fitting with connected components (e.g., graphite, ceramics) at high temperatures without loosening or damaging equipment due to thermal expansion and contraction.

• High Strength and Hardness: They retain excellent mechanical properties at high temperatures, with strong creep resistance and resistance to deformation.

• Good Corrosion Resistance: They exhibit strong resistance to various molten metals and atmospheres.

Screws, Rivets, and Nuts Application Fields

Used as fasteners in extreme environments.

• Electronics and Semiconductor Industry: Tungsten-molybdenum materials have excellent thermal and electrical conductivity. Their nuts and bolts are used to fasten relevant components in semiconductor manufacturing equipment (e.g., ion implantation equipment), as well as in electron guns, MCVD equipment, etc.

• Aerospace Field: Applicable to key components such as aircraft engines, exhaust systems, and fuel systems. They can withstand extreme temperatures and high-stress environments, ensuring stable connection of components.

• Chemical Industry: Due to the corrosion resistance of tungsten-molybdenum nuts and bolts, they are used to fasten equipment and pipes in chemical processing plants, resisting erosion from corrosive media and ensuring safe operation of equipment.

• Medical and Pharmaceutical Fields: Owing to their compatibility with sterilization processes and non-reactive properties, tungsten-molybdenum nuts and bolts are used to fasten surgical instruments, implants, and laboratory equipment.

• Glass and Ceramic Industries: During glass melting, components such as molybdenum electrodes need to be fastened with tungsten-molybdenum nuts and bolts. They are also used in equipment like crucibles and heating elements for quartz glass production.