DWARAKAIRON INDUSTRIESOur Range
Dwaraka TMT 550 — every size, precisely to spec
Fe 550 grade bar manufactured to IS 1786:2008 on the Evcon Turbo TMT System, 8mm–32mm diameter, with tight weight tolerance and a proprietary rib-bonding profile on every bar.
8mm10mm12mm16mm20mm25mm32mm
Fe 550
Grade, per IS 1786:2008
65° / 45°
Precision rib-bonding angles
19.15%
Less steel needed vs. Fe 415
>16%
Minimum elongation
>640 N/mm²
Tensile strength
Tested Against Every Grade
Ahead of Fe 550 on every measure, per IS 1786:2008
| Grade | Yield Stress | Tensile Strength | Elongation % |
|---|---|---|---|
| Fe 415 | >415 | >485 | >14.5% |
| Fe 500 | >500 | >545 | >12% |
| Fe 550 | >550 | >585 | >10% |
| Dwaraka TMT | >550 | >640 | >16% |
| Grade | Carbon | Sulphur | Phosphorus | S + P | Carbon Equivalent |
|---|---|---|---|---|---|
| Fe 415 | <0.30 | <0.060 | <0.060 | 0.5–1.0% | <0.42% |
| Fe 500 | <0.30 | <0.055 | <0.055 | 0.5–1.0% | <0.42% |
| Fe 550 | <0.30 | <0.050 | <0.050 | 0.5–1.0% | <0.40% |
| Dwaraka TMT | <0.25 | <0.050 | <0.050 | 0.5–1.0% | <0.40% |
Dimensional Accuracy
Weight per metre, held tighter than BIS requires
Every size is rolled inside a narrower tolerance band than the IS 1786:2008 minimum — less variance, more predictable steel consumption on site.
| Size | Weight (kg/mtr) | BIS Tolerance | Dwaraka Tolerance | Dwaraka % |
|---|---|---|---|---|
| 8mm | 0.395 | 0.367–0.423 | 0.370–0.407 | ±7% |
| 10mm | 0.617 | 0.574–0.659 | 0.580–0.625 | ±7% |
| 12mm | 0.888 | 0.844–0.932 | 0.845–0.920 | ±5% |
| 16mm | 1.579 | 1.500–1.658 | 1.516–1.625 | ±3% |
| 20mm | 2.467 | 2.396–2.541 | 2.408–2.540 | ±3% |
| 25mm | 3.856 | 3.735–3.996 | 3.752–3.924 | ±3% |
32mm also available — contact sales for full tolerance spec.
Key Facets of Dwaraka TMT
Unmatched StrengthHigher ElongationExcellent BendabilitySuperior WeldabilityUnparalleled StraightnessThermal StabilityHigh DurabilityFire ResistanceEarthquake ResistanceCorrosion ResistanceValue for Money
Weight Saving vs. Fe 415
Same 1,000 MT design strength, far less steel
1.000 MT
Fe 415 baseline
0.854 MT · 14.6%
Fe 500
0.809 MT · 19.15%
Dwaraka TMT Fe 550
Need a custom quantity or delivery schedule?
See indicative pricing or talk to our sales team directly.
Have Any Questions?
FAQs
8mm, 10mm, 12mm, 16mm, 20mm, 25mm and 32mm diameter, all Fe 550 grade.
IS 1786:2008, covering both mechanical and chemical property requirements.
Higher yield stress, tensile strength and elongation, with a tighter carbon and carbon-equivalent limit.
Every size is held inside a tolerance band tighter than the IS 1786:2008 minimum — see the Weight & Tolerance table above.
8mm–25mm ship from regular production runs; 32mm is available on confirmed order.
Standard fixed-length bars — contact sales for exact lengths available per size.
Yes — every batch ships with in-house test results for yield, tensile strength, elongation and chemical composition.
Use the Request a Quote form on our Contact page, or call 040 3581 0834 to speak with sales directly.
TMT Calculator
Estimate the Dwaraka TMT 550 quantity your build needs — enter your floor count and area per floor to get an instant tonnage estimate.