Copper-Cerium Master Alloy
Copper master alloy with 10-20% cerium (rare earth) for modifying microstructure in copper castings. HTS 7405.00.60 includes these as other copper master alloys used in specialty foundry applications. Improves casting quality and surface finish.
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More Specific Codes
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If imported as rare-earth compounds rather than copper alloy
Pure rare-earth compounds fall under inorganic chemicals Chapter 28.
If low cerium content (<2%) processed into copper alloy billets
Unwrought alloys with copper >97% classified under 7403 as copper alloys.
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Import Tips & Compliance
• Rare earth certificates required; specify cerium as mischmetal component
• Ensure alloy form (not powder) to maintain 7405 classification
• Avoid declaring as 'rare earth compound' which shifts to Chapter 28/38
Related Products under HTS 7405.00.60
Copper-Boron Master Alloy
Master alloy of copper containing 4-8% boron, designed for grain refinement in copper casting alloys like bronzes. Classified under HTS 7405.00.60 as other copper master alloys, it provides controlled boron addition to enhance mechanical properties. Primarily used by foundries for high-strength castings.
Copper-Titanium Master Alloy
High-titanium (5-10%) copper master alloy for strengthening copper alloys through precipitation hardening. Falls under HTS 7405.00.60 as other copper master alloys for industrial alloying. Used in electrical and structural copper products.
Copper-Vanadium Master Alloy
5-10% vanadium in copper master alloy for improving strength and recrystallization resistance. HTS 7405.00.60 classification as other copper master alloys for specialty alloy production. Used in resistance welding electrodes.
Copper-Phosphorus Master Alloy
A master alloy consisting primarily of copper with high phosphorus content (typically 10-15%) used in the non-ferrous metals industry to introduce phosphorus into brasses and bronzes. It falls under HTS 7405.00.60 as a master alloy of copper, classified as 'other' master alloys not specifically enumerated. This alloy aids in deoxidizing and improving fluidity during casting.
Copper-Manganese Master Alloy
Copper-based master alloy with 20-30% manganese content for alloying in aluminum bronzes and brasses. HTS 7405.00.60 covers this as other master alloys of copper used in metallurgical processes. It ensures uniform manganese distribution in final cast products.
Copper-Chromium Master Alloy
Master alloy containing 8-12% chromium in copper matrix for heat-resistant copper alloys. Classified under HTS 7405.00.60 as other master alloys of copper. Essential for applications requiring high temperature strength like welding electrodes.