| Chemistry | Unit | IS:1786 Gr: Fe 415 | TMT |
|---|---|---|---|
| Carbon | % | 0.30 max | 0.17 to 0.25 |
| Carbon Equivalent (C + Mn6) | % | 0.42 max | 0.38 max |
| Sulphur | % | 0.060 max | 0.050 max |
| Phosphorous | % | 0.060 max | 0.050 max |
| S & P | % | 0.110 max | 0.095 max |
| Mechnical Properties | Unit | IS:1786 Gr: Fe 415 | TMT Gr Fe:415 | IS:1786 Gr: Fe 500 |
TMT Gr: Fe 500 |
|---|---|---|---|---|---|
| Yeild Stress(MPA) | N/MM2 | 415 Min | 440 Min | 500 Min | 520 Min |
| N/MM2 | 10 % more than Ys but not less than 485 | 12 % more than YS but not less than 520 | 8 % more than Ys But not less than 545 | 8 % more than Ys But not less than 545 | 8 % more than Ys But not less than 600 |
| Elongation | % | 14.5 Min | 20 Min | 12 Min | 18 Min |
| Nominal Size | ISI Standards Nominal Weight Kg./mtr | Tolerance Limit as per ISI Kg./mtr | Tmt Nominal WEight in (Kg./mtr) | Tolerance Limit as per TMT (in Kg./mtr) | No. of piece bundle (Length 12 mtr.) | Weigth of per bundle (in kgs.) |
|---|---|---|---|---|---|---|
| 8mm | 0.395 | 0.367-0.422 | 0.375 | 0.367-0.380 | 20 | 90 |
| 10mm | 0.617 | 0.575-0.660 | 0.580 | 0.574-0.585 | 15 | 105 |
| 12mm | 0.888 | 0.844-0.932 | 0.855 | 0.844-0.860 | 10 | 103 |
| 16mm | 1.580 | 1.500-1.659 | 1.520 | 1.501-1.540 | 5 | 91 |
| 20mm | 2.470 | 2.393-2.541 | 2.415 | 2.395-2.430 | 3 | 87 |
| 25mm | 3.856 | 3.740-3.965 | 3.780 | 3.740-3.800 | 1 | 45 |
| 28mm | 4.835 | 4.670-4.980 | 4.750 | 4.695-4.800 | 1 | 57 |
| 32mm | 6.315 | 6.125-6.504 | 6.240 | 6.180-6.280 | 1 | 75 |
| CTD BAR / TOR | TMT | |
|---|---|---|
| Elogation | Approx 14.5% | High: 18-25% in all grades |
| Strength | Fe 415 Grade | High grade FE 415 to 600 i easily available |
| Weld Ability | % | Better & More Strength |
| Technology | Indian | QST International |
| Corrosion Resistance | High Corrosion | Resistant |
| Formability | Average | Excellent |
| Durability & Fatigue | Average | Most Appropriate For earthqauke prone areas |
| Strength Savings | Nil | Saving due to Superior strength & reasonable pricing |