Hire in metallurgy is the production received on rolling machines by hot, warm or cold rolling
High-quality metal rolling happens the following types:
- idle time (circle, square, hexagon, strip of flat section);
- the fittings are the metal ware applied to reinforcing of reinforced concrete designs;
1. general (mass) consumption (Fittings, Rod iron, Beam, Channel, Corner, Square hot-rolled, Circle, Strip, Hexagon;
2. special purpose (rails railway broad and narrow gage, rails tram, profiles of agricultural mechanical engineering, shipbuilding, oil and electroindustries).
High-quality hire is divided by the profile size on:
- large — round steel with a diameter of 80-250 mm, square steel with the party of 70-200 mm, periodic reinforcing profiles No. 70-80, angular steel with a width of shelves of 90-250 mm, channels and dvutavrovy beams the ordinary and facilitated 360-600 mm high, special shirokopolochny two-Tauris and columned profiles up to 1000 mm high, six-sided steel to No. 100, rails railway length of 43-75 kg weighing 1 m, strip steel up to 250 mm wide, etc.;
- average — round diameter of 32-75 mm, 32-65 mm, square with the party, and six-sided to No. 70, a steel periodic reinforcing profile No. 32-60, dvutavrovy beams up to 300 mm high, channels from 100-300 mm high, rails of a narrow track of P18-P24, strips with a section up to 8x145 mm, various shaped profiles of branch appointment and dr;
- small — round steel with a diameter of 10-30 mm, square steel with the party of 8-10 mm, a periodic reinforcing profile No. 6-28, angular steel with a width of shelves of 20-50 mm, channels No. 5-8, strip steel up to 60 mm wide, six-sided steel to No. 30 and various shaped profiles of branch purpose of the equivalent sizes.