- Mass per metre
- 0.395 kg
- Per 12 m bar
- 4.74 kg
- Bars per tonne
- ≈ 211
Stirrups, ties and slab distribution steel.
+91 73977 99154 · info@ferrosco.com

BIS certified · IS 1786:2008
WIN TMT 550 is a high-strength Fe 550 reinforcement bar, melted, cast, rolled and quenched at our integrated mill in Palavoor, Tirunelveli.
The product
WIN TMT 550 is made for homes, shops and everyday structures, where you need dependable strength at an honest price.
Every bar is made start to finish in our own integrated mill, from scrap melting to the quenched, tagged bar, so the quality is in our hands at every step.
Sizes available
Supplied in standard 12 m lengths. Weights shown are the nominal mass under IS 1786, so you can check billed weight against delivered weight.
Stirrups, ties and slab distribution steel.
Slab main bars, lintels and sunshades.
Columns, beams and footings in houses.
Heavier columns, beams and foundations.
Manufacturing
Because we make our own billets, every WIN bar traces back to a known heat with known chemistry.

Steel is melted in a 12 MT induction furnace and its chemistry is checked on a Bruker Q4 POLO spectrometer.

Approved heats are cast into billets in-house and sent hot to the rolling mill.

Billets are rolled to size, then pass through a German Thermex quenching system that forms a hard rim around a ductile core.

Lots are tested against IS 1786, then bundled and tagged with size and grade before dispatch.
Quality
The minimum values IS 1786:2008 sets for grade Fe 550. Every WIN lot is made and tested to meet them.
| Property | Requirement |
|---|---|
| 0.2% proof stress / yield strength | ≥ 550 N/mm² |
| Tensile strength | ≥ 585 N/mm², ≥ 1.06 × YS |
| Elongation | ≥ 10.0 % |
| Carbon | ≤ 0.30 % |
| Sulphur | ≤ 0.055 % |
| Phosphorus | ≤ 0.055 % |
| Sulphur + phosphorus | ≤ 0.105 % |
| Bend and rebend | As per IS 1786 |
Ask your dealer, or contact us, for the mill test certificate for your lot.
Where it's made
A green-belted integrated steel plant in Tirunelveli district, with hills and wind farms on the horizon. Over 40 years in steel, and a network of 300+ dealers and partners across Tamil Nadu and Kerala.
Rates & dealership
Ask for today's rate, find your nearest dealer, or enquire about becoming a WIN TMT dealer. We answer calls from 10 am to 6 pm.