Captain RustGuard

A Product of the Future
A Product of the Future
The Rustguard TMT bar is a product of tomorrow which has been introduced by Captain Steel, a leading TMT manufacturer who have been a trendsetter. It is a Fusion Bonded Epoxy Coated Reinforcement Bar (FBE) manufactured for the first time in Eastern India by Captain Steel India Ltd, with a production capacity of 50,000 MTPA.
Captain RustGuard Reinforcement Bar in India
Technological Marvel
Technological Marvel
Rust Guard TMT Bar is the latest breakthrough in steel with patented rib pattern, ensuring strong grip of concrete in RCC under fusion bonding conditions. A specially researched product from one of the finest producers of steel in India, RustGuard TMT bar is a technological marvel, specially created to provide complete protection against corrosion. It extends life of the construction manifold while providing the best possible strength.
Captain RustGuard

Captain RustGuard

Please Login to check prices and availability


The TMT bar Rust Guard is product of tomorrow which has been introduced by Captain
Steel, the leading TMT manufacturer who has been trendsetter. It is a Fusion Bonded Epoxy Coated Reinforcement Bar (FBE) manufactured for the first time in eastern India by Captain Steel India Ltd, with a production capacity of 50,000 MTPA.

Price mentioned is per piece.

CSIL will ensure that the products are delivered within 10-12 days by CSIL authorized trade partner, only at the available pin codes. 

Free home delivery on a minimum purchase of Rs. 30,000 and above of any CSIL product and within 4 km from the assigned dealer outlet. Delivery charges are to be borne by the customer if the delivery location falls outside the limit mentioned.

Click here for Cancellation Policy & Return Policy

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Top Notch Manufacturing Process
Top Notch Manufacturing Process
Rust Guard TMT bar is manufactured by Fusion Bonded technology USA, wherein a metaloplast membrane gets infused with the top molecular layer of the steel body making it chemically neutral to all normal acidic and basic conditions. It acts as an inhibitor to actions of hard water, seals reaction sites and shuts out microporosity. Captain RustGuard TMT bars extend life of the construction manifold, by providing excellent strength to the infrastructure.
Long Life of Structures
Long Life of Structures
Captain RustGuard TMT bars extend life of the construction manifold, by providing excellent strength to the infrastructure. Captain RustGuard TMT bar extends the longevity of structures in harsh, corrosive environments, as it is chemically neutral to all normal acidic and basic conditions, thereby rendering it ideal for large construction projects such as buildings, bridges, flyovers, dams and highways as well as Individual House Builders (IHBs). Latest in the block, it has equal appeal among private and government sectors for constructions.

Fusion Bonded Epoxy TMT Bars have been the skeleton of strength for buildings and bridges around the world. Internationally it has been recognized as a symbol of longevity.

Why Choose RustGuard
Why Choose RustGuard
  • Protects the TMT against corrosion and rust.
  • Complete protection of TMT bars and the concerete against corrosion.
  • No bursting or damage to the building which is very common in ordinary TMT bars.
  • Zero maintenance over years.
  • Uncomparable product for foundation and roof.
  • Made with latest technology.

Captain RustGuard

Handling Technique and Advantage

Extended Life of construction
Extended Life of construction
As Captain RustGuard TMT bar completely cuts off oxygen and water in concrete, corrosion becomes impossible, as a result of which the life of constructions increase manifold. It extends the longevity of structures in harsh corrosive environments.
Better Weldability and Stretchability
Better Weldability and Stretchability
High strength and ductility come from the fine grain multiphase composite structure. The metaloplast membrane leads to better stretchability and toughness. Since mechanical properties of the rebar remain unchanged, the inherent strength of the TMT bar is not compromised. Neither the outer surface nor the inner surface is ruptured during bending operations and high thermal stability is maintained. This makes it easy to weld.

BIS Specification Vs RustGuard

ParameterBIS 13620:1993RustGuard
Bare Bar PropertiesAs per IS 1786:2008Conforming to IS 1786:2008
Coating Thickness100 to 300 microns175 to 300 microns
Coating Holiday6 Holiday /m (max)5 Holiday /m (max)
Coating Fliexibility120 Degrees Bend using 10D120 Degrees Bend using 8D & 10D complying with BIS Specifications

Comparison between Normal Rebars Vs FBE (Epoxy) Bars

Standard TestingUncoated RebarsFusion Bonded Epoxy Coated Bars
Bureau of Indian StandardsIS 1786:2008IS 13620:1993
Rusting and CorrosionYesNo
Bond with ConcreteExcellentExcellent forever
FlexibilityExcellentExcellent forever
Coating ThicknessN.A.Excellent
Continuity of CoatingN.A.Uniform
Salt Spray TestAfter 45 days material found rusted and reduced in thickness100% rust-free and same thickness after 45 days of processing
Resistance to alkaline environmentSafe for some timeVery safe for a long time
Resistance to acidic environmentSafe for some timeVery safe for a long time
Impact TestN.A.Conforming IS 13620:1993

Don't take our word for it


I have been associated with Captain TMT for 6 years now. The quality of Captain 600EQR and Captain RustGuard is really excellent. Also, the Captain Support staff is really helpful and good. I am thankful to Captain TMT for being with us in our professional sphere.

Ashesh Maity,

Civil Engineer, Digha Area


The quality of CAPTAIN TMT Bars is excellent and these rebars fit all types of reinforcements and designs. I am very much satisfied with the product since 2012 and always refer CAPTAIN TMT to my clients. To say that CAPTAIN offers the best bendability and strength is no exaggeration. As an Architect I personally like CAPTAIN RustGuard very much

Sujan Kumar Mondal

Architect, Howrah


I chose Captain TMT because of easy availability; the product has a wide size range and is readily available at the dealer counter. The price of the product and quality is impressive and I am very happy with the choice of buying Captain TMT.

Anil Tiwary,



I am a first time user of coated TMT bar for construction and honestly I am thoroughly satisfied with Captain RustGuard. It is easily available in my locality and the product gives complete peace of mind.

Anuj Kumar,

Customer, Daltonganj


Captain RustGuard is really a unique and useful product. It is also easily available. We have approximately lifted 35 MT of RustGuard in the last 6 months.

Amrit Kumar Gupta



It has been 6 years now that I have been associated with Captain Steel. Must say they come with very good schemes and definitely look at improving our business with their strategies. I am loyal to the brand and always recommend 600 EQR to all my customers.

Mohammad Mohiddin

PLY CENTRE, Jagarnathpur, Jharkhand


It has been a wonderful association with Captain TMT for the last 7 years. Their support system is really impressive and I have never got stuck without any solution from team Captain. I have been able to grow my business along with Captain TMT.

Sunil Kumar

Prasad Agency, Gumla, Jharkhand


My business association with Captain Steel is nearly for 4 years. All this while, I have benefited from their schemes, offers and their excellent sales and marketing support. The company has helped me in growing my business for the past few years and I recommend the brand to all my customers.

Manoj Kumar Rakshit

Manoj Enterprises, Godda, Jharkhand

Frequently Asked Questions

Grade 600 EQR

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

- Superior Chemical Properties as compared to the relevant required maximum values of Carbon & Sulphur
- Superior Physical Properties
- Superior UTS (Ultimate Tensile Stress) /YS (Yield Stress) Ratio
- Superior % Elongation
- Better Nitrogen Values

5.5mm to 32mm

Captain 600 EQR can resist upto 600 degree Celsius

Yes, we provide the test report with the consignment


600 EQR is made from C-20 billets, which enhances the intrinsic quality of the bar to withstand load under adverse conditions.

The scientific rib design of Captain 600 EQR provides better gripping for better bonding with concrete.

Captain 600 EQR can resist upto 600 degree Celsius.

Due to low carbon content, bars can be butt or lap welded using ordinary rutile
coated electrodes without pre or post heat treatment.

Rust Guard TMT bar is called a green revolution in steel and Captain Steel India Ltd
manufactured it first in Eastern India.

It is called Rust Guard as this TMT bar provides complete protection from Rust and corrosion due to
the epoxy coating on the bar.

Epoxy coatings cure, whereas paint dries. In addition, when 100 percent solid epoxy
coatings are 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 from attack of oxygen and water molecules and provides
protection from rust and corrosion.

The rib design of Rust Guard TMT bar ensure strong grip with concrete in RCC under fusion bonding
conditions. So Rust guard doesn’t slip with concrete, rather has a very strong grip with concrete.

Yes Rust Guard TMT bars can be welded. After welding, patch up coating must be applied on the cut
area. Patch up coating is provided complimentary by Captain Steel on every purchase.

Yes Rust Guard TMT bars are flexible and can be bent.

Rust Guard TMT bars conforms with BIS IS 13620 : 1993 specifications

No, please use cutting machine or hacksaw blade to cut Rust Guard TMT bars.

Please use mandrel for bending Rust Guard TMT bars.

Rust guard TMT bars are manufactured by the following steps:
a. Surface preparation by shot blasting process
b. Heating of rebars (upto 240 degree Celsius) by Induction heating
c. Epoxy coating on rebars
d. Quenching on rebars
e. Testing of the product

German based “Thermex” technology

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

General FAQ's

Thermo-Mechanically Treated bars, better known as TMT bars, are high-strength
reinforcement bars that have a tough outer surface and a soft inner core. The strength of
TMT bars is controlled by optimising the water pressure to render a soft core and tough
exterior surface, thereby providing optimum strength, ductility and toughness

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.

TMT bars are widely used in general purpose concrete reinforcement structures, bridges and
flyovers, dams, thermal and hydel power plants, industrial structures, high-rise buildings,
underground platforms in metro railway and rapid transport system.

The manufacturing process of TMT Bar involves the following steps
Step 1- Manufacturing of billets from raw materials:
Step 2 - Heating, Rolling and formation of reinforced bar:
Step 3 - Quenching:
Step 4 - Self-tempering:
Step 5 - Atmospheric Cooling:

Manufacture of Steel Billets

Billets are rectangular rods which are created by the Continuous Casting Process. In this process,
steel is molten and heated to a temperature of 1700°C. It is subsequently poured into casting
moulds to give the form of billets.

The hot billets are sent to a Rolling / Reduction Mill where the thickness is further reduced and
elongated across three stands – Roughing, Intermediate and the Finishing stands. 


Undesirable property changes might occur in case freshly cast rods are consistently kept at a
higher temperature.
However, this is prevented by passing the bars through a Quenching Chamber where they
undergo Rapid Cooling system and are sprayed with cold water.
This leads to a unique layer called Martensite being formed on the exterior surface of the bar.

Self Tempering

During the cooling down process of the steel bars, the outer core of the bar is at a lower
temperature and the inner core is at a much higher temperature.
The Martensite is further tempered on exposure to air and conduction, which leads to heat flix
being transferred to the outer core from the inner core.
Eventually, the process leads to the formation of Bainite and Martensite rings around the bars.
This helps the bar to achieve higher yield strength. The core remains hot and malleable,
otherwise called austenitic during this phase.

Atmospheric Cooling

The temperature of the inner core of the bars are gradually reduced to room temperature by
passing them through special cooling beds. At this point the differentiation of outer and inner
core becomes cognizable. The bar becomes more weldable and tensile since it has Ferrite- Pearlite structure in the center.
The bars are then tested, bundled, and made ready for despatch.

Earthquake resistant
Enhanced strength combined with high ductility
High thermal resistance
Better malleability
Can be easily welded without loss of strength at places of welding

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

- Better bending strength, better ductility, better malleability, better thermal resistance, and better
corrosion resistance.
- It saves time in the Reinforcement process
- Reduces the cost of the labour
- Lesser weight, hence, a reduction in transportation cost
- Easy processing since easily bendable without losing strength

- Ease of bending, rebending and reverse bending
- Can be Butt-welded/ Lap welded
- High corrosion resistance.
- No significant changes in strength due to aging.
- Weldability and excellent ductility
- Easy bendability factor
- Ideally suitable for a concrete structure.
- No huge change in quality at high temperatures. 
- The use of high tmt grade rebars ensures around 15-17% savings in steel.
- Low carbon content.
- Percentage of elongation and tensile strength is high, high yield stress, the rate of prolongation is high
- Greater ductility for usage in seismic zones
- Greater resistance to higher temperatures
- Better bendability and greater weldability
- Better corrosion resistance property

Fe-415, Fe-500, Fe-550, and Fe-600 are four different grades of TMT bars produced in
These grade numbers signify the stress level that must be applied to make any
deformation in the bar. More stronger and superior bars have higher grade. According to
their strength and rigidity, the respective grades are given.
Decorative structures like balcony railings etc are made with low graded bars, but for
core building structures like roofs and floors high graded bars are used.
Usually for residential constructions and homes, Fe – 415 is suitable whereas Fe – 600
bars are used for industrial use. For construction of bridges and underground structures,
versatile bars like Fe – 500 and Fe – 550 are preferred.

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 bar
manufacturers 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.

Please send you application to

Please send your application to