Grade 600 EQR

Our QC laboratory is equipped with Spectrometer, Universal Tensile Strength Machine and Microscope etc to ensure high grade of products.

The TMT bars are sized from 5.5mm to 32mm.

Yes, we provide the test report with the consignment.

Yes, we have our own steel melting shop.

The scientific rib design on the Captain 600 EQR TMT Bars creates a tight grip with the concrete, which is safe in RCC constructions.

Rust Guard TMT bar is called a green revolution in steel. Captain Steel was the first to manufacture the Rust Guard TMT bar in Eastern India.

Epoxy coatings cure, whereas paint dries. In addition, when 100 % solid epoxy coating for steel is used, the surface becomes hard and durable, making it highly resistant to things like chemicals, abrasions, impact, oil and grease, and stains.

No, the green colour is not hand-painted. It is a fusion bonded epoxy coating on the TMT bar, done by high-end machines. Fusion-bonded epoxy is  basically 100% solid ground fused powder particles which when heated melt to form a continuous film - the metaloplast membrane. This membrane, being non-penetrative, protects the steel bars from the attack of oxygen and water molecules and provides protection from rust and corrosion.

We use the German-based Thermex technology for manufacturing TMT bars.

Yes. Captain 600 EQR is manufactured at a fully automatic continuous rolling mill which results in excellent dimensional tolerance to set the perfect configuration in surface finishing.

Quality of material being used Equipment and machinery involved in the self-tempering and quenching process. Rolling mill which gives shape to the material.

In 1959, Round bars were used, which led to plain ribbed bars from 1960 onwards. In 1968 came CTD bars (Cold Twisted Deformed) and the next step was TMT bars, which happened in 1980.

Now, let’s learn a little detail about these different grades of these bars which the TMT barmanufacturers in India produce –
1. Fe-415 – This grade of TMT bar is perfect choice for homes and residential
construction. They feature higher elongation which makes them absolutely perfect for building structures in earthquake-prone areas. Due to their anti-corrosion resistant
coating, these grades of bars protect from rust and corrosion.
2. Fe-500 – This grade of TMT bar is popularly known for its uses during the
construction of bridges, underground structures and multi-story commercial buildings.
3. Widely used in coastal areas since they are resistant to corrosion
4. Fe-550 – They are slightly better than Fe-500 grade and they are used both for construction activities which Fe-500 is capable of and also for those projects for which Fe – 500 is a little unsuitable.
5. Fe-600 – This type of TMT grade is generally used for heavy industrial construction as they require extraordinary strength and hardiness. This grade feature higher tensile
strength than any of the other grades.

When iron is oxidised by open air, a layer of oxide is formed which is known as rusting.
Although rusting has no impact on the quality of product, it is quite common since reaction of air and moisture forming rust is a regular phenomenon. It spreads on the surface uniformly. Corrosion is a chemical or an electrochemical reaction between an engineered material and its environment which causes its disintegration. Other compounds are also formed along with oxides and this leads to the metal surface being unevenly eroded. This is
detrimental to the product quality.

TMT reinforcing bar has a soft ferrite-pearlite core and a hard martensitic rim. The outer layer of the steel bar becomes tough and durable due to the drastic difference in temperature brought about by the process of sudden quenching. TMT bars are then subjected to atmospheric cooling to equalise the temperature difference between the inner core and exterior. As it gradually goes through a cooling process, the TMT bar turns into a
ferrite-pearlite mass. The TMT bar has good tensile strength and ductility since the inner core remains soft.

Please send you application to reachus@captainsteel.com