Crystal Boule Casting Mold Frame
A crystal boule casting mold frame is a structural frame for supporting ingot molds during semiconductor crystal growth in pullers and casters. It is classified under tariff item 8454.90.00 as essential to metallurgical casting machines. The frame withstands thermal cycling.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the frame is presented as a mold for mineral materials
Molds for mineral materials are classified under 8480.60.00, which may apply if the frame is a mold.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Declare the mold frame under 8454.90.00 as a part of casting machines
• Include drawings showing its function in semiconductor crystal growth
• Ensure the frame is not classified as a part of general use
Related Products under Tariff item 8454.90.00
Aluminum Ingot Mold Alignment Pin Set
An aluminum ingot mold alignment pin set is a precision-machined aluminum pin set for aligning and securing ingot mold sections in continuous casting lines. It is classified under tariff item 8454.90.00 as interchangeable parts of metallurgical ingot molds.
Boule Lapping Machine Workhead
A boule lapping machine workhead is a component for lapping machines that flatten semiconductor boules to precise tolerances before wafer slicing. It is classified under tariff item 8454.90.00 as a part of metallurgical casting machines. This workhead achieves critical flatness for semiconductor processing.
Casting Converter Graphite Crucible Insert
> A graphite crucible insert designed for use in converters during silicon melting in semiconductor metallurgy. It provides high-purity containment to prevent contamination of the molten material during casting processes. As a component of a converter used in metallurgy, it is classified as a part under tariff item 8454.90.00.
Cast Iron Ingot Mold Vent Plug
A durable cast iron plug inserted into ingot molds to regulate gas escape during metal solidification in foundries. It is a critical venting component of ingot molds used in metallurgy, falling under the parts provision of heading 84.54.
Cold Chamber Die Casting Machine Injector Piston
> A piston that injects molten metal into the die of cold chamber die casting machines, handling non-ferrous alloys like aluminum at high velocities. It is engineered for durability in high-pressure metallurgy applications. As a part of a casting machine, it is classified under tariff item 8454.90.00.
Copper Ingot Mold Cooling Jacket
A water-cooled copper jacket assembly that encases ingot molds to control solidification rates in aluminum foundries. It is a specialized thermal management part of ingot molds, classified under the parts provision of heading 84.54.