Of ceramics
Ferrous products obtained by direct reduction of iron ore and other spongy ferrous products, in lumps, pellets or similar forms; iron having a minimum purity by weight of 99.94%, in lumps, pellets or similar forms. > Of ceramics
Duty Rate (from China)
Subheadings
Products classified under Tariff item 8546.20
69kV Suspension Disc Insulators
This is a porcelain disc suspension insulator rated at 69kV, used in strings for overhead transmission towers. Each cap-and-pin unit provides high mechanical strength and contamination resistance. As a ceramic electrical insulator, it falls under tariff item 8546.20.00.
8546.20.00Alumina Ceramic Feedthrough Insulator
This is a hermetically sealed 99.5% alumina ceramic feedthrough insulator designed for high-vacuum systems. It allows conductors to pass through a barrier while maintaining electrical insulation, making it essential for RF and microwave applications. As a ceramic electrical insulator, it falls under tariff item 8546.20.00.
8546.20.00Alumina Ceramic Spool Insulator
This is a precision-machined spool-shaped insulator made from 95% alumina ceramic, used in electrical coils and transformers for wire support. It provides electrical insulation and prevents short circuits. As a ceramic electrical insulator, it is classified under tariff item 8546.20.00.
8546.20.00Beryllia Ceramic RF Insulator
This is a beryllium oxide (BeO) ceramic insulator for RF power transistors, offering high thermal conductivity while providing electrical insulation. It is a specialized ceramic insulator used in high-frequency applications. As a ceramic electrical insulator, it falls under tariff item 8546.20.00.
8546.20.00Ceramic Pothead Insulator
This is a large porcelain pothead insulator used for cable termination in substations (69-230kV). It provides stress relief and insulation for high-voltage cables. As a ceramic electrical insulator, it is classified under tariff item 8546.20.00.
8546.20.00Cordierite Ceramic Bobbin Insulator
This is a cordierite ceramic bobbin for winding magnet wire in inductors and relays, providing interlayer insulation. It has low thermal expansion properties, making it suitable for various electrical applications. As a ceramic electrical insulator, it falls under tariff item 8546.20.00.
8546.20.00High-Purity Alumina Submount Insulator
This is a 99.9% alumina ceramic submount for power semiconductor modules, providing thermal and electrical isolation. It is used in IGBT modules to support and insulate semiconductor components. As a ceramic electrical insulator, it is classified under tariff item 8546.20.00.
8546.20.00High-Voltage Porcelain Post Insulator
This is a cylindrical porcelain insulator designed for supporting high-voltage power lines on utility poles, featuring a glazed surface for weather resistance. It provides electrical insulation and mechanical support. As a ceramic electrical insulator, it falls under tariff item 8546.20.00.
8546.20.00Machinable Ceramic Insulator Sleeve
This is a Macor machinable glass-ceramic sleeve insulator used for custom electrical standoffs in prototypes. It has a true ceramic composition and provides electrical insulation. As a ceramic electrical insulator, it is classified under tariff item 8546.20.00.
8546.20.00Porcelain Pin-Type Insulator
This is a traditional porcelain pin insulator for distribution poles (11-33kV), screwed onto wooden crossarms. It provides primary electrical insulation for overhead lines. As a ceramic electrical insulator, it falls under tariff item 8546.20.00.
8546.20.00Porcelain Suspension Insulator Disc
This is a single porcelain disc unit for string suspension insulators in extra-high-voltage transmission lines, featuring a ball-and-socket design. It provides electrical insulation and high mechanical strength. As a ceramic electrical insulator, it is classified under tariff item 8546.20.00.
8546.20.00Silicon Carbide Surge Arrester Insulator
This is a porcelain housing for silicon carbide surge arresters protecting transformers from lightning, with high puncture resistance. It provides electrical insulation and mechanical protection. As a ceramic electrical insulator, it falls under tariff item 8546.20.00.
8546.20.00Steatite Ceramic Bushing Insulator
This is a steatite ceramic bushing used in switchgear to insulate conductors passing through enclosures, with threaded metal ends for mounting. It provides electrical insulation for medium-voltage applications. As a ceramic electrical insulator, it is classified under tariff item 8546.20.00.
8546.20.00Steatite Ceramic Terminal Block Insulator
This is a low-voltage steatite ceramic base for terminal blocks in control panels, isolating screw terminals. It provides electrical insulation to prevent short circuits. As a ceramic electrical insulator, it falls under tariff item 8546.20.00.
8546.20.00Zirconia Ceramic Stand-Off Insulator
This is a high-strength zirconia ceramic stand-off insulator for mounting busbars in electrical panels, resistant to thermal shock. It provides electrical insulation for industrial power distribution. As a ceramic electrical insulator, it is classified under tariff item 8546.20.00.