A CORROSION RESISTANT THERMO-MECHANICALLY TREATED REINFORCING BARS

摘要

The invention provides a corrosion resistant thermomechanically treated reinforcing bar based on addition of corrosion inhibiting elements to a selected alloy chemistry. The rebar containing C: 0.21-0.24 wt %, Mn: 0.90-1.10 wt %, Si: 0.10-0.15 wt%, P: 0.035 wt %, S: 0.035 wt %, Cu:0.30-0.40 wt%,Co: 0.20- 0.35 wt % and Ca: 0.0020-0.0040 wt% having tempered martensite structure. The inventive reinforced bars provide 1.5 times superior corrosion resistance over conventionally produced mild steel reinforcing bars.