WCO Explanatory Notes reproduced for reference. © World Customs Organization. Verify against official WCO publication.
72.05 - Granules and powders, of pig iron, spiegeleisen, iron or steel. 7205.21 - Granules - Powders : - - Of alloy steel 7205.29 - - Other 7205.10 (A) GRANULES Granules are defined in Note 1 (h) to this Chapter. This heading covers granules, i.e., shot, more or less round in shape, and angular " grits ". Shot is produced by pouring liquid iron or steel into cold water or into a jet of steam; the grits are obtamed by the crushing of shot, or by cold crushing sheets, etc., of hardened metal. These goods remain in this heading whether or not they have been graded by size. Shot and grit are used for cleaning up and descaling or surface hardening (shot peening) metal, for polishing or engraving on metal or glass, for working stone, etc. They are also sometimes added to concrete as a hardener or to increase its impermeability to X-rays or gamma rays. This heading also covers wire pellets produced by cutting iron or steel wire, and used for the purposes mentioned above. (B) POWDERS Powders are defined in Note 8 (b) to Section XV. Powders of pig iron, spiegeleisen, iron or steel are materials suitable for compacting or agglomeration and are roduced by atomisation of molten iron or steel, by the reduction of Iron oxides (dry process), ! I y crushing pig iron, sponge iron or steel wire, by precipitation (wet process), by decomposition of ferro-carbonyl, b the electrolysis of aqueous solutions of iron salts or by pulverising iron or steel (including pu verised filings). ? These owders (including sponge iron powder) can be sintered into various articles, including cores or electromagnetic coils in telephony, in magnetos, etc. They are also used in the manufacture of weldm electrodes and welding powders, in the chemical industry (especially as reducin agents), an sometimes in the preparation of pharmaceutical products (powder obtaine by pulverising iron filings). f' The heading does not cover : (a) Radioactive iron powders (isotopes) (heading 28.44). (b) Iron powders put up as medicaments in the sense of heading 30.03 or 30.04. (c) Granules and powders of ferro-alloys (heading 72.02). (d) Waste filings and turnings of iron or steel (heading 72.04). (e) Small defective bearing balls which, thou often used for the same p oses as shot, are classified in heading 73.26 in accordance with Note to Chapter 84. Such beanng alls differ *om shot because they have a more regular and finished appearance and are made of better quality steel. ? Sub-chapter I1 IRON AND NON-ALLOY STEEL GENERAL Provided that they are of iron or non-alloy steel this sub-chapter covers : (1) Ingots or other primary forms such as puddled bars, pilings, blocks, lumps, including steel in the molten state (heading 72.06). (2) Semi-finished products such as blooms, billets, rounds, slabs, sheet bars, pieces roughly shaped by forgmg, blanks for angles, shapes and sections (heading 72.07). (3) Flat-rolled products (headings 72.08 to 72.12). (4) Bars and rods, hot-rolled, in irregularly wound coils (heading 72.13) and other bars and rods (heading 72.14 or 72.1 5). (5) Angles, shapes and sections (heading 72.16). (6) Wire (heading 72.17). -
1.- In this Chapter and, in the case of Notes (d), (e) and (f) throughout the Nomenclature, the following expressions have the meanings hereby assigned to them : (a) Pig iron Iron-carbon alloys not usefully malleable, containing more than 2 % by weight of carbon and which may contain by weight one or more other elements within the following limits : - not more than 10 % of chromium - not more than 6 % of manganese - not more than 3 % of phosphorus - not more than 8 % of silicon - a total of not more than 10 % of other elements. (b) Spiegeleisen Iron-carbon alloys containing by weight more than 6 % but not more than 30 % of manganese and otherwise conforming to the specification at (a) above. (c) Ferro-alloys Alloys in pigs, blocks, lumps or similar primary forms, in forms obtained by continuous casting and also in granular or powder forms, whether or not agglomerated, commonly used as an additive in the manufacture of other alloys or as de-oxidants, de-sulphurising agents or for similar uses in ferrous metallurgy and generally not usefully malleable, containing by weight 4 % or more of the element iron and one or more of the following : - more than 10 % of chromium - more than 30 % of manganese - more than 3 % of phosphorus - more than 8 % of silicon - a total of more than 10 % of other elements, excluding carbon, subject to a maximum content of 10 % in the case of copper.