What Are the Different Grades of TMT Bars?

TMT bars were introduced in 1979 under IS 1785:1979 and were available in grades Fe 415 and Fe 450. In 1985, a better quality of these bars called Fe 500 (IS 1786:1985) hit the market. Since then, the Indian construction industry has only increased its demand for various types of TMT bars. Therefore, in 2008, Fe 600 grade TMT bars that met IS 1786:2008 were put on the market.

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