NAF 24.20Y—Manufacture of tubes, pipes, hollow profiles and related fittings, of steel

Where 24.20Y sits

1. C Manufacturing industry
2. 24 Metallurgy
3. 24.2 Manufacture of tubes, pipes, hollow profiles and related fittings, of steel
4. 24.20 Manufacture of tubes, pipes, hollow profiles and related fittings, of steel
5. 24.20Y Manufacture of tubes, pipes, hollow profiles and related fittings, of steel

What 24.20Y includes

• Manufacture of seamless pipes and tubes, of circular cross-section or non-circular, and drafts of circular cross-section, intended for further processing by hot-rolling, hot extrusion or by other processes, hot-as an intermediate product, which may be a bar or billet obtained by hot-rolling or continuous casting
• The manufacture of seamless pipes and tubes, precision, or not, from rough sketches-rolled or extruded, hot, by further processing, by cold drawing or cold rolling for the tubes and pipes, of circular cross-section and by cold drawing only to tubes and pipes of non-circular section and the hollow
• Manufacture of welded tubes and pipes of an external diameter of > 406,4 mm, of cold-formed from flat products, hot-rolled and welded longitudinally or spirally
• Manufacture of welded tubes and pipes, of circular cross-section, of an external diameter of less than or equal to 406.4 mm, by forming a continuous cold or hot-rolled flat products hot or cold, and longitudinally welded or spiral, and of non-circular section by hot forming or cold-rolled strip hot-or cold-welded longitudinally
• Manufacturing of precision tubes and pipes, welded, of an external diameter less than or equal to 406.4 mm per hot forming or cold-rolled, hot-rolled or cold-and longitudinally welded, delivered as is, or processed, by drawing or cold rolling or cold for tubes and pipes of non-circular section
• The manufacture of flanges, flat flange flange forged by processing flat products of steel hot rolled
• Making accessories to butt-weld steel, such as the elbows and sleeves, by forging from steel tubes, seamless hot-rolled
• Manufacturing accessories threaded and other accessories for steel piping

What 24.20Y excludes

• The manufacture of tubes and pipes seamless steel sunk by centrifugation, see 24.52Y

24.20Y in other systems