|
Chapter 75 : Nickel and articles thereof
Note. 1. In this Chapter the following expressions have the meanings hereby assigned to them : (a) Bars and rods
Rolled, extruded, drawn or forged products, not in coils, which have a uniform solid cross-section along their whole length in the shape of circles, ovals, rectangles (including squares), equilateral triangles or regular convex polygons (including "flattened circles" and "modified rectangles", of which two opposite sides are convex arcs, the other two sides being straight, of equal length and parallel). Products with a rectangular (including square), triangular or polygonal cross-section may have corners rounded along their whole length. The thickness of such products which have a rectangular (including "modified rectangular") cross-section exceeds one-tenth of the width. The expression also covers cast or sintered products, of the same forms and dimensions, which have been subsequently worked after production (otherwise than by simple trimming or de-scaling), provided that they have not thereby assumed the character of articles or products of other headings. (b) Profiles
Rolled, extruded, drawn, forged or formed products, coiled or not, of a uniform cross-section along their whole length, which do not conform to any of the definitions of bars, rods, wire, plates, sheets, strip, foil, tubes or pipes. The expression also covers cast or sintered products, of the same forms, which have been subsequently worked after production (otherwise than by simple trimming or de-scaling), provided that they have not thereby assumed the character of articles or products of other headings. (c) Wire
Rolled, extruded or drawn products, in coils, which have a uniform solid cross-section along their whole length in the shape of circles, ovals, rectangles (including squares), equilateral triangles or regular convex polygons (including "flattened circles" and "modified rectangles", of which two opposite sides are convex arcs, the other two sides being straight, of equal length and parallel). Products with a rectangular (including square), triangular or polygonal cross-section may have corners rounded along their whole length. The thickness of such products which have a rectangular (including "modified rectangular") cross-section exceeds one-tenth of the width. (d) Plates, sheets, strip and foil
Flat-surfaced products (other than the unwrought products of heading 75.02), coiled or not, of solid rectangular (other than square) cross-section with or without rounded corners (including "modified rectangles" of which two opposite sides are convex arcs, the other two sides being straight, of equal length and parallel) of a uniform thickness, which are :
- of rectangular (including square) shape with a thickness not exceeding one-tenth of the width,
- of a shape other than rectangular or square, of any size, provided that they do not assume the character of articles or products of other headings.
Heading 75.06 applies, inter alia, to plates, sheets, strip and foil with patterns (for example, grooves, ribs, chequers, tears, buttons, lozenges) and to such products which have been perforated, corrugated, polished or coated, provided that they do not thereby assume the character of articles or products of other headings. (e) Tubes and pipes
Hollow products, coiled or not, which have a uniform cross-section with only one enclosed void along their whole length in the shape of circles, ovals, rectangles (including squares), equilateral triangles or regular convex polygons, and which have a uniform wall thickness. Products with a rectangular (including square), equilateral triangular, or regular convex polygonal cross-section, which may have corners rounded along their whole length, are also to be considered as tubes and pipes provided the inner and outer cross-sections are concentric and have the same form and orientation. Tubes and pipes of the foregoing cross-sections may be polished, coated, bent, threaded, drilled, waisted, expanded, cone-shaped or fitted with flanges, collars or rings. Subheading Notes. 1. In this Chapter the following expressions have the meanings hereby assigned to them : (a) Nickel, not alloyed
Metal containing by weight at least 99 % of nickel plus cobalt, provided that : (ⅰ) the cobalt content by weight does not exceed 1.5 %, and (ⅱ) the content by weight of any other element does not exceed the limit specified in the following table :
TABLE - Other elements
| Element | Limiting content % by weight | Fe Iron
O Oxygen
Other element, each | 0.5
0.4
0.3 |
(b) Nickel alloys
Metallic substances in which nickel predominates by weight over each of the other elements provided that : (ⅰ) the content by weight of cobalt exceeds 1.5 %, (ⅱ) the content by weight of at least one of the other elements is greater than the limit specified in the foregoing table, or (ⅲ) the total content by weight of elements other than nickel plus cobalt exceeds 1 %. 2. Notwithstanding the provisions of Chapter Note 1 (c), for the purposes of subheading 7508.10 the term "wire" applies only to products, whether or not in coils, of any cross-sectional shape, of which no cross-sectional dimension exceeds 6 mm. GENERAL
This Chapter covers nickel and its alloys, and certain articles thereof.
Nickel is a relatively hard, greyish-white metal melting at 1453 ºC. It is ferro-magnetic, malleable, ductile, strong and resistant to corrosion and oxidation. Nickel is used mainly in the production of many alloys especially alloy steels, for coating other metals usually by electrodeposition and as a catalyst in many chemical reactions. Unalloyed wrought nickel is also extensively used in the manufacture of chemical plant. In addition nickel and nickel alloys are used for coinage. The principal nickel alloys which may fall in this Chapter under the provisions of Note 5 to Section XV include the following : (1) Nickel-iron alloys. These include materials used in submarine cables, induction coil cores, magnetic shielding, etc., because of their high magnetic permeability and low hysteresis. (2) Nickel-chromium or nickel-chromium-iron alloys. These include a variety of commercial materials featuring good strength and excellent resistance to oxidation at high temperature and scaling as well as to many corrosive environments. These materials are employed for the heater element in electrical resistance heating devices and are also used for components such as muffles and retorts used in the heat treatment of steels and other metals or in the form of pipe and tubing for high temperature chemical or petrochemical processing. Also in this group are special alloys known as "super alloys" which have been developed specifically for high strength at the elevated temperatures prevailing in aircraft turbines where they are used for turbine blades and vanes, combustion liners, transition sections, etc. Often these alloys contain molybdenum, tungsten, niobium, aluminium, titanium, etc., which are effective in significantly improving the strength of the nickel-base composition. (3) Nickel-copper alloys. These alloys, which in addition to corrosion resistance have good strength, are used in such applications as propeller shafts and fasteners and are also used in pumps, valves, tubing and other forms of equipment exposed to certain mineral or organic acids or alkalis and salts. This Chapter includes : (A) Nickel mattes, nickel oxide sinters and other intermediate products of nickel metallurgy and unwrought nickel, and nickel waste and scrap (headings 75.01 to 75.03). (B) Nickel powders and flakes (heading 75.04). (C) Products generally obtained by rolling, forging, drawing or extruding the unwrought nickel of heading 75.02 (headings 75.05 and 75.06). (D) Tubes, pipes and fittings (heading 75.07), and electroplating anodes and other articles of heading 75.08, which covers all nickel articles, other than those covered by Note 1 to Section XV or included in Chapter 82 or 83, or more specifically covered elsewhere in the Nomenclature. Products and articles of nickel may be subjected to various treatments to improve the properties or appearance of the metal, etc. These treatments are generally those referred to at the end of the General Explanatory Note to Chapter 72, and do not affect the classification of the goods. (See, however, the special case of electroplating anodes (heading 75.08).) The classification of composite articles is explained in the General Explanatory Note to Section XV.
|
clhs@clhs.co.kr 
070-4214-8300