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A coil of hot-rolled steel Hot-rolled metals generally have little directionality in their mechanical properties or deformation-induced residual stresses . However, in certain instances non-metallic inclusions will impart some directionality and workpieces less than 20 mm (0.79 in) thick often have some directional properties.
Hot-rolled as rolled cut length 50 70 1.40 22 Hot-rolled as rolled coils 45 65 1.44 22 Hot-rolled annealed 45 65 1.44 22 Cold-rolled 45 65 1.44 22 Hot-rolled and cold-rolled high-strength low-alloy columbium and/or vanadium steel sheet and strip A607 Class I Gr.45 45 60 1.33 Hot rolled (23) Cold rolled (22) Gr.50 50 65 1.30 Hot rolled (20)
In 2002, expansion of hot-rolled coil capacity increased to 4.2 Mt/yr from 3.1 Mt/yr. Additional proposed facilities included a 400,000-t/yr cold-rolled mill and a 120,000 t/yr tinplate line in addition to the development of the 3.2-Mt/yr Chegharat iron mine. [7]
Hot-rolled coil (HRC), steel that is heat processed into metal sheets used for car bodies and household appliances, was a steady profit driver for mills but orders are now slowing down, two major ...
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Hot rolling (HR): slabs and blooms are reheated in a furnace and hot-rolled. Hot rolling reduces the thickness of the slabs to produce about 3 mm (0.12 in)-thick coils. Blooms, on the other hand, are hot-rolled into bars, which are cut into lengths at the exit of the rolling mill, or wire rod, which is coiled.
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