Product Category: TMT Reinforcement Bars

KS 500 is Kathmandu Steels’ Fe 500 grade TMT reinforcement bar, produced in sizes from 8 mm through to 32 mm for residential, commercial, and infrastructure concrete work.

The thermo-mechanical treatment process gives the bar a tough tempered martensite rim over a soft ferrite-pearlite core. That structure is what delivers high yield strength together with the elongation, bendability, and weldability that reinforcement detailing depends on, while the ribbed surface develops a strong mechanical bond with concrete.

KS 500 D is Kathmandu Steels’ Fe 500D grade TMT reinforcement bar, available in sizes from 8 mm through to 32 mm.

The D grade keeps the same 500 N/mm² minimum yield strength as Fe 500 but is rolled to a tighter chemistry and a higher minimum elongation, so the bar absorbs more energy before failure. That extra ductility is what makes it the preferred choice for seismic detailing, heavily congested reinforcement, and structures where bars must be bent and rebent on site.