– In a reduction mill the heated billet goes through three stands – roughing, intermediate and finishing stands, where the rolling mill reduces the thickness and extends the overall length This is final manufacturing process that produces the TMT steel rebars. Stage 3 – Making TMT reinforcement bar (rebars) from Steel Billets These bullets are then turned into TMT bars. In this process molten steel is poured into moulds which then turn the metal into long, rectangular forms called steel billets. This steel is finally cast into billets using the continuous casting process. The materials are then processed using either a BOS (Basic Oxygen Furnace) or an EAF (Electric Arc Furnace) or the more modern Induction Furnace method to adjust the composition of the steel.ĭepending on the final desired composition of the steel, this process can add or remove certain chemicals from the metal. In this stage, huge volumes of high-grade recycled steel scrap are collected and sorted.
Stage 1 – Sourcing Materials and Processing TMT bars go through below stages of manufacturing before they get delivered to you. Their strength and anti-corrosive properties can be chalked up to the special thermomechanical processing that produces steel which has a special Ferrite-Pearlite core encased in Tempered Martensite. TMT bars or Thermo Mechanically Treated bars have taken over the world of construction and rightly so! Not only are they an economically sensible option but they also have the advantage of offering unmatched durability as well as ductility compared to conventional steel bars. Ever wondered how they make the super strong TMT steel? Here’s a peek at their manufacturing process.