HY-TUF Steels has been licensed by Hennigsdorfer Stahl Engg. GmbH, Germany. Thus, HY-TUF uses the same patented technology to manufacture TMT bars as used by SAIL (Steel Authority of India Ltd.).
HY-TUF TMT Bars have the following inherent qualities that makes them ideal for earthquake prone areas especially seismic zones 4 & 5
Thermex is a precise, state-of-the-art Themo-Mechanical-Treatment (TMT) process developed essentially to meet the demand for reinforcement steel of high strength and high ductility. Developed and patented by Hennigsdorfer Stahl Engg. (HSE) GmbH, Germany, Thermex is a rapid water quenching and self-tempering process (QST) that guarantees consistent properties over the entire bar length.
The Thermex cooling technology involves subjecting the red hot bar to a sophisticated hi-tech cooling process. This treatment converts the bar surface to a hardened structure. The subsequent phase involves cooling at ambient temperature to allow the hot core to temper the surface through thermal exchange. This results in a unique structure of tempered martensite in the peripheral zone and a fine grain ferrite-pearlite at the central zone.