Periclase Crucible for Metallurgy
Periclase crucible for metallurgy is a laboratory-grade crucible made from fused magnesia (periclase) for melting precious metals and alloys. It contains magnesia in periclase form and is an article of mineral substances. It is not excluded by Chapter 68 notes.
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 crucible is not a refractory constructional product like bricks or blocks.
This item covers other articles containing magnesia, including non-constructional refractory items.
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
• Confirm the periclase content and that the crucible is not a tool of Chapter 82
• Provide end-use documentation for metallurgical melting
• Ensure it is not classified as a laboratory article of Chapter 90
Related Products under Tariff item 6815.91.10
Chromite Investment Casting Shells
Chromite investment casting shells are pre-made ceramic shells with chromite flour stucco, used in precision investment casting for aerospace and turbine blades. They contain chromite, a specified mineral in this tariff item, and are refractory constructional products. They are not excluded by Chapter 68 notes as they are not tools or parts of tools of Chapter 82.
Chromite Mullite Composite Refractories
Chromite mullite composite refractories are composite shapes blending chromite and mullite, used in glass tank regenerator checkerwork. They contain chromite and are refractory constructional products for high-temperature industrial use. They fall under this tariff item as they are not excluded by Chapter 68 notes.
Chromite Sand for Metal Casting Molds
Chromite sand for metal casting molds is foundry-grade sand used as mold facing material. It contains chromite and is an article of mineral substances, not excluded by Chapter 68 notes. It is used in metal casting, which aligns with the metallurgical use requirement.
Dolime-Based Heat Insulation Boards
Dolime-based heat insulation boards are rigid panels made from dolime aggregates for high-temperature industrial ovens. They contain dolomite in dolime form and are fabricated articles. They are not excluded by Chapter 68 notes and are used in industrial heating applications.
Dolime Flux Additive Pellets
Dolime flux additive pellets are pelletized dolime used for electric furnace slag conditioning and phosphorus removal. They contain dolomite in the form of dolime and are fabricated articles for metallurgical use. They are not excluded by Chapter 68 notes.
Dolomite Ramming Mass for Induction Furnaces
Dolomite ramming mass for induction furnaces is dead-burned dolomite powder mixed for ramming into furnace linings. It contains dolomite in dolime form and is used for high-heat applications in steel foundries. It is an article of mineral substances, not excluded by Chapter 68 notes.