Uniquely built with a ribbed design, Kay2 XENOX TMT Bars assist in making powerful bonds with the concrete. The Hexagonal pattern lays a firm foundation to the building and adds resilience to the structure. Used across all earthquake-prone areas in the country, Kay2 Steel’s TMT Bars are made to ensure seismic resistance. In addition to this, they are built keeping in mind all kinds of hazards including fire and corrosion of metal through time. This is why the bars are made with innovative technology for anti-corrosion and fire resistance. The thermo-mechanical-treatment along with the sum of internal angles (720 degrees) ensures the high tolerance and anti-fatigue nature of the bars. Also, this allows the bars to have a rigid cover having a softcore increasing the ductility, bendability, weldability, formability, and compressive and tensile strength. This makes the TMT Bars crack resistance and an apt product for construction purposes.

S.No Constituents Maximum
IS:1786 Kay2 XENOX IS:1786 Kay2 XENOX IS:1786 Kay2 XENOX
Fe-500 Fe-500 Fe-500D Fe-500D Fe-550 Fe-550
1 Carbon% 0.30 0.25 0.25 0.23 0.30 0.25
2 Sulphur% 0.055 0.050 0.040 0.035 0.055 0.050
3 Phosphorus% 0.055 0.050 0.040 0.035 0.055 0.050
4 S+P% 0.105 0.100 0.075 0.070 0.100 0.095
5 Carbon Equivalent% - - 0.50 0.40 - -
6 Nitrogen% 0.012 0.010 0.012 0.010 0.012 0.010

*As contained in 90% of heat

S.No Properties Unit IS: 1786 (Fe-500) Kay2 XENOX (Fe-500) IS: 1786 (Fe-500D) Kay2 XENOX (Fe-500D) IS: 1786 (Fe-550) Kay2 XENOX (Fe-550)
1 Yield Stress (Min.) N/mm2 500 530.0 500.0 530.0 550.0 565.0
2 Tensile Strength (Min.) N/mm2 545 600.0 565.0 610.0 585.0 610.0
3 TS/YS Ratio Ratio >= 1.08 >= 1.10 >= 1.10 >= 1.12 >= 1.06 >= 1.08
4 Elongation (Min.) % 12.0 16.0 16.0 18.0 10.0 14.0
5 Uniform Elongation (Min.) % - - 5.0 6.0 - -
6 Bend Test
a) Upto & Including 20 mm
Mandrel dia (in mm) ø-dia of bar
b) Over 20 mm Mandrel dia (in mm) ø-dia of bar
7 Re-Bend Test
a) Upto & Including 10 mm
Mandrel dia (in mm) ø-dia of bar
b) Over 10 mm Mandrel dia (in mm) ø-dia of bar

*As contained in 90% of heat

Characteristics Ordinary TMT Kay2 XENOX TMT
Fe-415 Fe-415 Fe-500 Fe-550
Design/Grade/Y.S 415 N/mm2 450 N/mm2 530 N/mm2 565 N/mm2
Quantity 1.0 MT 0.92 MT 0.78 MT 0.73 MT
Percentage of saving weight over Fe-415 - 8% 22% 27%
Saving in cost relative to Fe-415/MT. If rates are 40,000/-PMT 3200/- 8800/- 10,800/-


  • Made from billets
  • Excellent surface finish and Quality
  • Premium quality raw materials used
  • Latest rolling techniques
  • Strict metallurgical control


You must check out the following essential qualities while purchasing TMT Bars:

  • It must bend easily.
  • Its ribs must be sharp for the strongest bonding with cement.
  • It must have good combination of strength & ductility.
  • The weight standards of TMT Bars per meter must be as per ISI standard.
  • TMT Bars must have been manufactured by an ISI & ISO certified company.
  • Every meter length of TMT Bar must bear its company stamp.

Bond Strength

The Splicing Rib Design pattern of Kay2 XENOX TMT Bars offers an average of 2.7 times higher bond strength compared to ordinary bars bond strength and are specially designed to ensure excellent bondage between the bar and the surrounding concrete. The strong compression and tension in reinforced concrete produces an everlasting bond and adds longevity to the structure.

Superior Bendability

Kay2 XENOX TMT Bars have outstanding bending and re-bending properties without any occurrence of cracks. The tough outer surface and a ductile core ensures that the composite works efficiently and cracks are under control. This results in rebars with extremely high bendability offering shape to the perfect construction. These bars can be bent around mandrels much smaller than those specified in IS: 1786.

Better Weldability

Kay2 XENOX TMT Bars offer superior weldability than conventional bars due to its low carbon equivalent. Its excellent formability and weldability absorbs seismic waves and increases safety. It can easily be butt-welded, or lap welded using ordinarily coated electrodes of similar strength. No pre-warming or post-heat treatment is necessary for manual arc welding either.

Corrosion Resistance

Corrosion of reinforcing bars depletes the service life of the concrete structure. Kay2 XENOX TMT Bars are designed and produced with the latest technology to protect reinforcing steel bars against corrosion from the high-alkalinity of pore water. The compact rib pattern (Hexagonal Molecular Bonding) provides better physical protection so that the corrosion rate decreases and increases the life of the structure.

High Temperature Resistance

At Kay2 Steel, we use standard materials while treating the steel with a high melting point to make it stable, durable, and reliable in the face of extreme temperatures. This allows Kay2 XENOX TMT Bars to retain more than 80% of its ambient temperature yield strength at 300 degrees Celsius and 40% at 500 degrees Celsius.

Dimensional Tolerance

Our Quality Control measures include measurement of chemical and mechanical properties and close dimensional tolerances for a superior quality product. Kay2 XENOX TMT Bars are supplied with section weight lower than the nominal, within the BIS specification. They are guaranteed to be lesser than the nominal mass & less than 1% heavy to provide various design advantages and application benefits.

Seismic Resistance

Kay2 XENOX TMT Bars reveal superior seismic resistance properties during simulated earthquake conditions induced on reinforced concrete, beam, column and joints to evaluate performance under repeated reverse-loading with inelastic strains. The advanced processed steel has a mesh grip for a stronger steel cement bond. Its superior physical and chemical properties soften the earthquake generated forces acting upon it and escape the deformation and damage.

Economics of Savings

Kay2 XENOX TMT Bars are new generation rebars with Hexagonal Molecular Bonding and usable yield stress which is above that of Fe-500 grade of IS:1786. Hence, their use based on the working stress or limit state method as per IS:456, would result in substantial savings in steel costs as compared to a typical T-Beam floor built with Mild Steel Bars.

The Intelligent Steel

Innovation at its peak! (Accelerating Innovation. Adding Strength.)

Conforming to the BIS Standard, we, at Kay2 Steel, manufacture outstanding quality steel products. We use Hexagonal Molecular Bonding at internal angles of 720-degree. Not only does it add longevity and strength to your home, but also reduces the rate of corrosion. The novel rib pattern offers the best combination of formability, weldability, and ductility, suitable for all kinds of construction projects.

Avant-garde Technology

Using avant-garde technology allows us to face innumerable challenges during or after construction. Our advanced laboratories of modern equipment are managed by trained technicians with constant checks by the Quality Assurance Department. This has enabled us to produce the best quality products in the market. Kay2 Steel ensures continuity in the research and development of the products with respect to international standards so that the customers never go discontent/unsatisfied. The primary way to do so is to maintain the quality of products, for which we choose to do strict metallurgical control during the entire process from production until delivery. The consistent up-gradation of the Quality Assurance System ensures the best quality of the products.

What do we manage to do?

  • Enhance bond strength with cement
  • Strengthen the foundation
  • Resist corrosion
  • Resist seismic waves
  • Resist fire damage

Top-notch Quality

Kay2 Steel has managed to make a mark in the industry with its excellent quality steel bars and wirebonds, used for construction. The two primary products under the brand of Kay2 Steel are Kay2 XENOX TMT Bars and Kay2 Wirebond. The exceptional quality of the products ensures resistance to corrosion, resistance to fire hazards, excellent ductility along with better bond strength with cement and concrete.

We, at Kay2 Steel, maintain the international standards of quality, yet reduce the construction costs.