Good quality TMT have bar impurities like Sulphur and Phosphorous below 1%. These impurities decrease the TMT bars strength in extreme cold and hot conditions.Fe 500 grade TMT steel bars . Fe 500 TMT steel rebars are manufactured using latest technology and stringent Quality Check (QC) measures. High quality off-cuts are processed in the most sophisticated Induction Furnace and Ladle Refining Furnace, a proven technology to produce high quality clean TMT steel with least traces of chemical elements like Sulphur and Phosphorus. Strength of the bars are carefully controlled by optimizing the water pressure for their pearlitic core and tough surface of tempered martensite, thereby providing an optimum strength, ductility and toughness. TMT bars are widely used in general purpose concrete reinforcement structures, bridges and flyovers, dams, thermal and hydel power plants, industrial structures, high-rise buildings, underground platforms in metro railway and rapid transport system. TMT Bars are thermo-mechanically-treated through leading world tempcore based technology for high yield strength. The process involves rapid quenching of the hot bars through a series of water jets after they roll out of the last mill stand. The bars are cooled, allowing the core and surface temperatures to equalize. The bar core cools down slowly to turn into a ferrlite-pearlite aggregate.
Agni Steels’ closely controlled production process is closely monitored from the beginning, when the raw materials are procured. The iron ore is screened for high iron content. Additionally, our TMT process creates an extremely hard outer surface of martensitic steel on the steel rod, further contributing to its remarkable strength.
The iron ore used to produce the sponge iron is imported from Kumba, South Africa as well as procured from Karnataka. This Iron ore is specially selected and screened for high iron content. The coal used is also imported from South Africa. This careful attention to raw materials results in the sponge iron containing few undesirable tramp elements that could negatively impact the quality of the final product.
Our quality control process is built up carefully over the years we spent establishing ourselves as a trusted name in the steel industry. It begins from the procurement of quality raw materials, continues in the screening of every cast billet followed by a number of tests used to determine the quality of the final product. Throughout the production process, the product is tested for specific mechanical and chemical.
