Dear Sir,
Steel Structural falls under the list of declared goods, hence state lgislature can not levy VAT @ more than 4%.
For your ready reference, I am quoting 14(v) of CST Act-
14(iv) - Iron and steel, that is to say-
(i) pig iron, sponge iron and cast iron including ingot moulds, bottom plates, iron scrap, cast iron scrap, runner scrap and iron skull scrap:
(ii) steel semis (ingots, slabs, blooms and billets of all qualities, shapes, and sizes);
(iii) skelp bars, tin bars, sheet bars, hoe-bars and sleeper bars;
(iv) steel bars (rounds, rods, squares, flats, octagons and hexagons, plain and ribbed or twisted, in coil form as well as straight lengths);
(v) steel structurals (angles, joists, channels, tees, sheet piling sections, Z-sections or any other rolled sections);
(vi) sheets, hoops, strips, and skelp both black and galvanished hot and cold rolled, plain and corrugated in all qualities, in straight lengths and in coil form, as rolled and in riveted condition;
(vii) plates both plain and chequered in all qualities;
(viii) discs, rings, forgings and steel castings;
(ix) tool, alloy and special steels of any of the above categories;
(x) steel melting scrap in all forms including steel skull turnings and borings;
(xi) steel tubes, both welded and seamless, of all diameters, and lengths including tube fittings;
(xii) tin-plates, both hot dipped and electrolytic and tin free plates;
(xiii) fish plate bars, bearing plate bars, crossing sleeper bars, fish plates, bearing plates, crossing sleepers and pressed steel sleepers, rails-heavy and light crane rails;
(xiv) wheels, tyres, axles and wheel sets;
(xv) wire rods and wires-rolled, drawn, galvanised, aluminised, tinned or coated such as by copper;
(xvi) defectives, rejects, cuttings or end pieces of any of the above categories;