Bends without cracking
The soft ferrite-pearlite core takes the bend while the hard rim carries the load, so 8-32mm bars pass the IS 1786 bend and rebend test at site radii.
Our ProductsTwo products.
Two products.
One standard.
IS 1786:2008 TMT rebars in four grades from 8 to 32mm, and hot-rolled MS billets from our own continuous caster. Every tonne leaves the plant with the test values that back it.
StandardIS 1786:2008
GradesFe 500 – 550D
Diameters8 – 32 mm
EcolabelGreenPro · Active
Product 01
TMT Rebars
Thermo-mechanically treated reinforcement bar, rolled on German TEMPCORE lines. A water ring quenches the surface into hard martensite; the heat still in the middle then tempers that rim from the inside while the core stays ductile. One bar, two behaviours: strength on the outside, give in the middle.
- Grades
- Fe 500 · Fe 500D · Fe 550 · Fe 550D
- Diameters
- 8 · 10 · 12 · 16 · 20 · 25 · 32 mm
- Standard length
- 12 m (custom cuts to order)
- Every dispatch
- Batch test certificate, traceable to heat no.
Rolled in, not printed on
Every bar carries the name and the grade.
The roll itself cuts RD TMT and the grade into the steel between the ribs, so a site engineer can identify the bar in the cage months after the tag came off the bundle. It is the cheapest quality control there is: nothing about the bar can be swapped without the marking going with it.
RD TMTFe 500DHeat no. on the tag
Why TEMPCORE
What the process buys you on site.
Six things a structural consultant checks before signing off a rebar supplier — and what RD TMT’s process does about each.
Ductile under seismic load
D-grade elongation of 16% (Fe 500D) gives a frame somewhere to go before it fails, which is exactly what ductile detailing in a seismic zone is asking for.
Corrosion resistant
Low sulphur and phosphorus plus a dense tempered-martensite rim slow the pitting that starts rebar corrosion inside concrete.
Weldable, no pre-heating
Carbon equivalent is held low enough that lap and butt welds can be made on site without pre-heating the bar first.
Holds strength in a fire
TEMPCORE bars retain a far greater share of their yield strength at 300-600°C than cold-twisted deformed bar, which buys evacuation time.
Grips the concrete
The rib pattern is rolled to a uniform pitch and height, so bond strength is the same on the first bar of a heat and the last.
The four grades
Pick the grade, not the risk.
“D” grades carry tighter chemistry limits and higher minimum elongation. Specify them wherever ductile detailing or seismic performance matters.
Fe 500D
Higher elongation and tighter chemistry for ductile detailing. It is the grade structural consultants ask for in seismic zones.
500 N/mm²Yield strength min
16%Elongation min
≥ 1.10UTS / YS ratio
Chemistry & scope
StandardIS 1786:2008
Diameters8-32 mm
Carbon max0.25%
Sulphur max0.040%
Phosphorus max0.040%
S + P max0.075%
Ductile detailingRecommended
| Grade | Yield min | Elongation min | UTS/YS | Typical use |
|---|---|---|---|---|
| Fe 500 | 500 N/mm² | 12% | ≥ 1.08 | General RCC structures |
| Fe 500D | 500 N/mm² | 16% | ≥ 1.10 | Seismic zones, ductile detailing |
| Fe 550 | 550 N/mm² | 10% | ≥ 1.06 | High-rise, heavy load |
| Fe 550D | 550 N/mm² | 14.5% | ≥ 1.08 | High-rise + seismic ductility |
Rebar range, shown to scale
8 to 32 millimetres.
Sections drawn to relative scale, with the nominal mass per metre from IS 1786 Table 1 — the number a bar-bending schedule is priced on.
8 mm0.395 kg/mTies & stirrups
10 mm0.617 kg/mSlabs
12 mm0.888 kg/mBeams & slabs
16 mm1.580 kg/mBeams & columns
20 mm2.470 kg/mColumns
25 mm3.850 kg/mFootings
32 mm6.310 kg/mHeavy structure
Product 02
MS Billets
100% hot-rolled mild-steel billets, continuously cast from DRI-based induction melting: purer input iron, cleaner chemistry, and dimensionally precise sections that behave predictably on someone else’s re-rolling mill.
100 × 100mm
110 × 110mm
125 × 125mm
150 × 150mm
- Raw material
- DRI & selected scrap
- Lengths
- 6 m & 12 m
- QA
- Spectrometric, every heat
Where it goes
From a stirrup to a taxiway deck.
Send us your bar bending schedule. We'll price it within a business day.
Grade, diameter mix, tonnage and delivery window are all the sales desk needs to quote.