7402 00 00 — Unrefined copper; copper anodes for electrolytic refining

7402 Copper unrefined; copper anodes for electrolytic refining

This heading includes: (1) Black copper. It is crude copper, usually obtained in a mine furnace by melting oxide copper ores or untreated copper scrap. The copper content varies widely and is usually 60 – 85 wt.%. (2) Black copper. It is a crude copper obtained in a converter by blowing air through molten copper linen. During metallurgical processing, oxidation of sulfur, iron and other impurities occurs. The copper content is usually about 98 wt.%. (3) Copper anodes for electrolytic refining. Copper, partially refined in the oxidative melting process, is cast into anodes for further electrolysis refining. These anodes are usually shaped like slabs (flat blanks) with two eyelets to hang in an electrolytic bath. They shall not be confused with anodes for coating copper (heading 7419).

Note

Machine translation. The original is the Russian text of the EAEU tariff, and customs goes by it; this translation is for understanding only and has no legal force.

1. The terms used in this chapter mean:

(a) “refined copper” means a metal containing not less than 99.85 % by weight of copper or a metal containing not less than 97.5 % by weight of copper, provided that the content by weight of each other element does not exceed the limits specified in the following table:

Other elements

Element

Maximum content, wt.%

Ag

silver

0.25

As

arsenic

0.5

Cd

cadmium

1.3

Cr

chromium

1.4

Mg

magnesium

0.8

Pb

lead

1.5

S

sulfur

0.7

Sn

tin

0.8

Te

tellurium

0.8

Zn

zinc

1.0

Zr

zirconium

0.3

Other elements* (each of them)

0.3

* Other elements include, for example, Al, Be, Co, Fe, Mn, Ni, Si

(b) "copper alloys" means metal alloys, other than unrefined copper, in which copper is greater in mass than any other element, provided that:

(i) the mass content of at least one of the other elements exceeds the limit indicated in the above table; or

(ii) the total content of other elements exceeds 2.5 % by weight.

(c) "ligatures" means alloys containing, among other elements, more than 10 % by weight of copper, not suitable for deformation in the cold state and used mainly as additives in the manufacture of other alloys or as oxidants, desulphurators or for other similar purposes in non-ferrous metallurgy. However, copper phosphide (copper phosphorus) containing more than 15 % by weight of phosphorus is classified in heading 2853.

Subheading notes

Machine translation. The original is the Russian text of the EAEU tariff, and customs goes by it; this translation is for understanding only and has no legal force.

1. The terms used in this group have the following meanings:

(a) “copper and zinc (brass)-based alloys” means alloys of copper and zinc, whether or not containing other elements. If other elements are present, then:

zinc by weight must exceed each of these other elements.

- in the presence of nickel, its content should not exceed 5 wt.% (see copper-nickel-zinc alloys (neusilbers)); and

- in the presence of tin, its content should not exceed 3 wt.% (see copper-tin alloys (bronzes)).

(b) “alloys based on copper and tin (bronze)” means alloys of copper and tin containing or not containing other elements. In the presence of other elements, the tin content by weight exceeds the content by weight of each of these elements, except when the content of tin 3 wt.% or more zinc content by weight may exceed the content by weight of tin, but it should be less than 10 wt.%.

(c) "alloys based on copper, nickel and zinc (neusilbers)" means alloys of copper, nickel and zinc, whether or not containing other elements. The nickel content is 5 wt.% or more (see copper-zinc alloys (brass)).

(d) “copper and nickel-based alloys” means alloys of copper and nickel containing or not containing other elements, but in any case with a content not exceeding 1% by weight of zinc. In the presence of other elements, the nickel content by weight exceeds the content by weight of each of these elements.