Other
Converters, ladles, ingot molds and casting machines, of a kind used in metallurgy or in metal foundries, and parts thereof: > Parts > Other
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.05, 9903.88.06, 9903.88.07, 9903.88.08, 9903.88.10, 9903.88.11, 9903.88.14, 9903.88.19, 9903.88.50, 9903.88.52, 9903.88.58, 9903.88.60, 9903.88.62, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(b) [to this subchapter]
Products classified under HTS 8454.90.00.80
Czochralski Crystal Puller Ingot Mold
A specialized ingot mold designed for use in Czochralski crystal growers and pullers to produce monocrystalline silicon boules for semiconductor wafers. It falls under HTS 8454.90.0080 as a part of casting machines used in metallurgy for high-purity semiconductor material production. The mold ensures precise thermal gradients during the crystal growth process.
Float Zone Crystal Grower Crucible
High-purity graphite crucible used in float zone crystal growers to process semiconductor-grade silicon into monocrystalline boules. Classified under HTS 8454.90.0080 as a part of metallurgical casting machines for ingot production. Critical for maintaining zone purity during RF-heated melting.
Silicon Wafer Ingot Casting Ladle
Refractory-lined ladle for transferring molten polysilicon into crystal grower molds in semiconductor metallurgy. Fits HTS 8454.90.0080 as a ladle part for metal foundry casting machines. Ensures contamination-free pouring for boule formation.
Gallium Arsenide Ingot Mold Assembly
Precision machined mold assembly for casting GaAs compound semiconductor ingots in metallurgical crystal pullers. Under HTS 8454.90.0080 as parts of casting machines for metal foundries producing semiconductor materials.
Crystal Boule Grinder Ladle Insert
Replaceable insert for ladles used in post-casting handling of semiconductor crystal boules before grinding. Classified in HTS 8454.90.0080 as other parts of metallurgical converters and ladles.
Semiconductor Ingot Casting Converter Nozzle
High-temperature nozzle for converters in silicon ingot casting systems, controlling melt flow in metallurgical foundries. HTS 8454.90.0080 covers it as a part of casting converters.
Monocrystalline Silicon Casting Machine Frame Part
Structural frame component for ingot casting machines used in semiconductor boule production. Falls under HTS 8454.90.0080 as other parts of metallurgical casting machines.
Quartz Crucible for Crystal Pullers
Fused quartz crucible serving as the ingot mold in Czochralski pullers for semiconductor silicon wafers. HTS 8454.90.0080 as part of metallurgical casting equipment.