Copper-Niobium Master Alloy

Master alloy of copper with 15% niobium for precipitation hardening in high-strength copper alloys. Covered by HTS 7405.00.60 as other copper master alloys for metallurgical addition. Used in aerospace and electrical applications.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
๐Ÿ‡จ๐Ÿ‡ณChinaFree+25.0%25%
๐Ÿ‡ฒ๐Ÿ‡ฝMexicoFreeโ€”Free
๐Ÿ‡จ๐Ÿ‡ฆCanadaFreeโ€”Free
๐Ÿ‡ฉ๐Ÿ‡ชGermanyFreeโ€”Free
๐Ÿ‡ฏ๐Ÿ‡ตJapanFreeโ€”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.

7405.00Same rate: 25%

If master alloys containing precious metals or other specific compositions

Other specified master alloys have separate statistical suffixes.

8112.59.00.00Higher: 29% vs 25%

If predominantly niobium with copper as minor component

Niobium and niobium alloys classified under Chapter 81 heading 8112.

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Import Tips & Compliance

โ€ข XRD analysis may be requested to confirm metallic bonding vs. intermetallic

โ€ข Specify 'not for nuclear use' if applicable to avoid ITAR restrictions

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-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.

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.