Properties |
CTD Bars |
Rimjhim Turbo TMT Bars |
| |
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| Strength |
High (normally up to Grade Fe- 415) |
Very high as grades of Fe-500 & 550 are easily achievable |
| Elongation |
As per IS: 1786/'85 |
Very High in all grades and over- achieves the elongation requirement in the recent amendment to IS: 1786 for earthquake resistance |
| Weld- ability |
Preferably avoided as welded joints are weak |
Better and no loss of strength |
| Formability |
Bend 3D – 5D, Re-bend 5D – 8D |
Excellent due to uniform elongation. Bend 1D, Re–band 4D |
| Ductility & Fatigue strength |
High |
Very High. Most suited for earthquake resistant structures |
| Fire Hazards |
Loss of Strength on temperature rise |
Negligible loss in strength up to 500 deg. C. |
| Corrosion Resistance |
Seales fall down during cold twisting |
Better Corrosion resistance |
Workability
Overall Economy |
Easy working at site |
Pre-welded meshes can be used.
Availability of Grades Fe-500 & 550 results in steel saving |
