Corrosion is a nemesis for the iron-based elements and steel is no different. But we have adopted a technique of adding 17% copper to ensure long-lasting property. Most of the TMT Bars Manufacturers in Tamilnadu and elsewhere, try to attain the maximum corrosion resistivity. They invest specifically for this with seasoned experts and R&D labs. Since corrosion weakens the building and can crumble the structure. Here’s where iSTEEL XLS TMT bars come in, with the lowest corrosion rates it has the power of copper that make sure that it lasts for generations without rust or deformation.
Making of such high-quality corrosion resistance TMT bars involves lots of computer-generated simulation, product testing under various circumstances. Using a computer-controlled process is one way to ensure, no room for error and to maintain consistency and perfect bars. After reinforcement these bars are tested manually, which are immersed in saltwater and normal water, they are left there for weeks at most and by the end of each week, the steel bar is tested for rust and corrosion, and weighed appropriately. This process ensures that the bars are corrosion resistant. Consistency means zero space for any weak link in the building. This tech also aids in forging earthquake resistant TMT bars, which can act as an evasive mechanism at dire times.
There are specific TMT bars for each purpose for instance TMT bars used to houses generally differ from the bars used for airports, subways, bridges, and skyscrapers. And different bars are used for buildings built in coastal areas and where the air is more humid or buildings near a damp environment.
Flexibility
The flexibility or bendability is one of the important things to take into consideration when buying a TMT bar, high-quality TMT bars have the ability to withstand any amount of bending without breaking. It has said that Fe500 grade TMT bars have the highest rate of ductility in the market. The manufacturer goes through all kinds of processes to make sure the rods are strong and ductile at the same time. This is achieved through a separate step during the manufacturing, where the steel rods are passed through a quenching process, in which cold water is sprayed on the surface on the rods which hardens the surface but the core remains soft, this makes it bendable.
Elongation
Another thing to look for is the elongation in TMT bars, usually, the best TMT bars have higher tensile strength, yield strength, more percentage of elongation when compared to cold steel bars. Elongation of TMT bars occurs when it is subjected to high temperatures, different TMT bars have a varied percentage of elongation, depending on the purpose and built. There are tests to ensure the longevity of the rods, they are strained to a point of failure, and the percentage of elongation is determined. Yield test and elongation test are more or less similar, in yield test the TMT bars are subjected to stress for a point to which it loses its shape and cannot regain its original form. It is performed twice, with corrosion and without corrosion to and under different conditions to see the effects of corrosion in the tensile strength. These tests are made to know how long and much can it hold out before deforming. This insight is much use in building overhead bridges or subways and other mammoth skyscrapers.
