New Generation Steel Reinforcement Bar From Torsteel Group. UltraTherm is a high strength and high bond Reinforcing Steel conforming To Fe550 Grade (Tor-55) of IS 1786-2008. UltraTherm Reinforcement Steel Bars of Fe550 Grade are stronger by 10 - 15% over Fe500 TMT Bars.
SPECIFICATIONS – Fe-550 D GRADE (As per IS 1786-2008 DATA OF AVAILABLE DIAv)
| Nominal Dia mm | Nominal Weight Kg/m | Permitted range of weight kg/m | Range of length Mts/MT | Ast Sq.mm |
|---|---|---|---|---|
| 5.0 | 0.154 | 0.142 to 0.166 | 6024 to 7042 | 19.63 |
| 6.0 | 0.222 | 0.207 to 0.238 | 4303 to 4831 | 28.26 |
| 7.0 | 0.302 | 0.278 to 0.326 | 3065 to 3598 | 38.48 |
| 9.0 | 0.500 | 0.459 to 0.539 | 1854 to 2177 | 63.62 |
MECHANICAL PROPERTIES
| Parameters | IS Requirements | UltraTherm Bar Specs |
|---|---|---|
| 0.2% Proof Stress (P.S) | 550 N/sq.mm (Min.) | Passes |
| Ultimate Tensile Strength | 585 N/sq.mm (Min.) Or 1.06 X Act P.S whichever is higher | Passes |
| Elongation | 10% Min | Above 16% |
| Bond Strength ( Extra Over Plain Round) | 60% Min. over Mild Steel | Above 100% |
| Weight Tolerance | + or – 8% | 4% |
CHEMICAL PROPERTIES
| Parameters | IS Requirements | UltraTherm Bar Specs |
|---|---|---|
| Carbon % | 0.25 Max | 0.20-0.25 Max |
| Sulphur % | 0.040 Max | 0.030 Max |
| Phosphorus % | 0.040 Max. | 0.030 Max |
| CE (Max) | 0.50 | 0.50 |
ADVANTAGES OF USING Steel Bar
The Quality Advantage
The Cost Advantage
The Size Advantage
EASILY WELDABLE
100% Weldability
Being made from Low carbon mild steel with carbon less than 0.20%, it can be welded by metal arc welding process with normal electrodes
There is no loss of strength at weld joints and special precautions such as preheating or post heating are necessary during welding
ADVANTAGES OF USING Steel Bar
Superior Strength
Yield Strength = 550 N/sq.mm
Tensile Strength = 585 N/sq.mm
High Bond Properties
UltraTherm Steel Bar is Tri-Ribbed viz. Rib on three sides
TMT Bars have ribs only on two sides
Even 5mm UltraTherm has ribs whereas 6mm MS is plain
Bond strength is over 100%.
OTHER QUALITY ADVANTAGES
Better fatigue strength.
Advanced and latest BaustaHLGE WEBE Technology (Germany)