Buy A-One Gold TMT Steel ISI Fe 500 Grade Online at the Lowest / Wholesale price from the Authorised Dealers in Bangalore.
Aone TMT India Private Limit manufactures good quality steel with good installed capacity. It is one of the well-known brands that offers 8 mm, 10mm, 12mm, 16mm, 20mm, 25mm Fe-500 TMT steel bars for construction. Get the latest market rates for Aone TMT Steel bars at hindustansteelsuppliers.com
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Thermo – Mechanical Treatment is a metallurgical process that integrates work hardening and heat – treatment into a single process.
MS Billets are heated to approximate 1100c in a reheat Furnace. Then they are progressively rolled to reduce the billet to the final size and shape of reinforcing bar. After the last rolling stand, the billet moves through a quench Box. The quenching Converts the billet’s surface layer to marten site, and causes it to shrink. The Shrinkage pressurizes the core, helping to form the correct crystal structures. The core remains hot, and austenitic. A microprocessor controls the water flow to the queen box, to manage the temperature difference through the cross-section of the bars. The correct temperature difference assures that all processes occur, and bars have the necessary mechanical properties.
The Bar leaves the quench box with a temperature gradient through its cross section. As the bar cools, heat flows from the bars centre to its surface so that the bar’s heat and pressure correctly tempers an intermediate ring of marten site and bainite.
Finally, the slow cooling after quenching automatically tempers the austenitic core to ferrite and pearlite on the cooling bed.
These bars therefore exhibit a variation in microstructure in their cross section, having strong, tough, tempered marten site in the surface layer of the bar, an intermediate layer of marten site and bainite, and a refined, tough and ductile ferrite and pearlite core.
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