7411 22 — Tubes and pipes of copper-nickel base alloys "cupro-nickel" or copper-nickel-zinc base alloys "nickel silver"

7411 Copper pipes and tubes: 7411 10 - from refined copper - from copper alloys: 7411 21 - from alloys based on copper and zinc (brass) 7411 22 - from alloys based on copper and nickel (kupronickel) or alloys based on copper, nickel and zinc (neusilber) 7411 29 - other

Pipes and tubes are defined in note 1(h) to this chapter. The Explanatory Notes to headings 7304 to 7306 apply, mutatis mutandis, to the scope of the heading and to the methods of manufacture of articles. Most copper pipes and tubes are made seamless, but sometimes they can be made by soldering or welding the edges of the strip or other ways. Seamless pipes and tubes are usually made by firmware and extrusion of the bar to obtain a pipe workpiece, which is subjected to hot rolling or drawing through the matrix until the required size is reached. Sometimes pipes and tubes can be extruded to their final size without dragging. Copper pipes and tubes have many applications (for example, in the food industry, in heating, cooling, distillation, refining or

steam apparatus), and are also used in building for water or gas supply. Condenser tubes of copper alloys are widely used in shipbuilding and in power stations because they are highly resistant to corrosion, in particular by salt water. The heading excludes: (a) Hollow profiles, including ribbed tubes and pipes obtained by extrusion (heading 7407). (b) Tube or pipe fittings (heading 7412). (c) Tubes and pipes to which ribs or fins are attached, e.g., by welding (generally heading 7419). (d) Flexible tubing (heading 8307). (e) Tubes and pipes made up into identifiable articles of other Chapters, e.g., parts of machinery (Section XVI).

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.