Author: siva karthikeyan

Tamil Nadu has become a leading hub for TMT steel bar manufacturing due to its strategic location and availability of raw materials. Tamil Nadu’s strategic location has helped it become a leading hub for TMT steel bar manufacturing in India. The state is located on the east coast of India and has access to major ports such as Chennai and Ennore. This has made it easier for companies to import raw materials and export finished products. In addition to this, Tamil Nadu has a well-developed road and rail network that connects it to other parts of the country. This has made it convenient for companies to transport raw materials and finished products to other parts of the country.

ARS Steel located in Gummidipoondi is one of the leading TMT bar manufacturers in Tamil Nadu and South India. They have provided high-quality TMT bars for over three decades, forming the cornerstone of iconic establishments across Tamil Nadu. ARS Steel sources the best raw material in South India to support the dream of millions. They manufacture TMT bars using a highly efficient technique throughout the supply chain process that significantly reduces the overall cost. In addition to this, ARS 550D TMT bars promise savings of 4% to 6% in TMT consumption. ARS steels produce good quality TMT bars in TaMmil Nadu that range up to 32 mm in diameter.

Fe 550D is another name for this unique ARS 550D TMT bars feature. In this case, “Fe” stands for ferrous, which represents iron, “550” stands for the minimum yield strength, and “D” stands for ductility. The ductility of steel also ensures that the component won’t undergo brittle fracture during work hardening, as the energy of that process is absorbed. The high ductility increases the ARS 550D’s ability to be resistant to earthquakes and fires up to 500 degrees Celsius. ARS 550D makes sure to exceed the quality control requirements outlined by BIS since it is driven by values, dedication, and a strong desire to provide the finest product possible for its clients. The extra D (Ductility) in fe550D makes it one of the no.1 TMT bars in Tamil Nadu.

ARS is certified with ISO 9001, 14001 and 18001 for its state-of-the-art production facility and the products are certified by SGS, a Swiss-based multinational company that provides inspection, verification, testing, and certification services for every batch and consignment on-site. Additionally, they just received the Asia One Best Business Leader Award, and this makes them the best TMT bar company in Tamil Nadu.

Fe 500 and Fe 550 TMT Grade Bars are both used for making steel. Both are high-strength steels that can be used for a variety of industrial projects. However, the processes used to produce them, and their chemistry are completely different.

The main difference between Fe 500 TMT Grade Bar and Fe 550D TMT Grade Bar is the strength of the material. The Fe 500 TMT Grade Bar is designed to withstand a minimum strength of 500 MPa. While the Fe 550D TMT Grade Bar is designed to withstand a minimum strength of 550 MPa.

What is Fe 500 TMT Grade Bar

Fe 500 TMT Grade Bar is a grade of steel that is used in the construction industry. It has high yield strength. And it is extremely good in toughness and ductility.

Specifications That Make All the Difference

The tensile strength of Fe 500 TMT Grade Bar is 8% more than 0.2% PS, but not less than 545.0 N/mm2.

What does Fe 500 mean? The Fe denotes that it is made of iron. The numerical figure 500 stands for their minimum yield strength in N/mm2.

Chemical composition of Fe 500 TMT Grade Bar: It is Iron mixed with some amount of carbon (0.3%), sulphur (0.055%), phosphorus (0.055%) materials by mass and S+P is about 0.105%.

Mechanical Properties of Fe 500 TMT Grade Bar

1) Their yield strength (fy) is 500N/mm2,
2) Ultimate tensile strength (fu) is 545N/mm2
3) Elongation is 12
4) TS/YS ratio is 1.09.

This grade of TMT bar is suitable for construction of multiple storey and commercial buildings. And it is resistant to corrosion.

What is Fe 550D TMT Grade Bar

Fe 550D TMT Grade Bar: Fe 550D TMT Grade Bar is a high-grade alloy steel that is used to make bars, rods and structural shapes. It is high in strength and hardness. And thus, makes them the ideal choice for industry constructions purposes.

The tensile strength of Fe 550D TMT Grade Bar is 6% more than 0.2% PS, but not less than 585.0 N/mm2.

What does Fe 550D mean? Fe denotes that it is made of iron. The numerical figure 550D stands for their minimum yield strength in N/mm2.

Chemical composition of Fe 550D TMT Grade Bar: Iron mixed with some amount of carbon (0.25%), sulphur (0.04%), phosphorus (0.04%) materials by mass and S+P is about 0.07%.

Mechanical Properties of Fe 550D TMT Grade Bar

1) Their yield strength (fy) is 550N/mm2
2) Ultimate tensile strength (fu) is 585N/mm2
3) Elongation is 16
4) TS/YS ratio is 1.08

This grade of TMT bar is suitable for large-scale projects like bridge and construction of heavy underground structure.

What Kind of Projects Are They Suited for?

FE 500 Grade

•  It is regarded as a standard in the market across many types of construction projects.
• Fe 500 Grade has good stability, and security in terms of earthquake resistance but less in ductility.
• They are also used for the construction of multi-storeyed buildings, business complexes and private ventures.

FE 550D Grade

• The tensile strength of these bars is much more, which makes them ideal for construction projects that have more arenas.
• Fe 550D grade TMT can be used for mechanical undertakings, scaffolds and other structures that need to endure a lot of weight.
• They are ideal for underground construction projects, marine projects, beachfront properties and more.
• Fe 550D grade has ductility and flexibility and has an elongation as per IS 1786

Earlier construction structures were predominantly built with concrete and iron rods. In the long run the iron rods began to rust at a rapid pace. Hence, the construction structures started losing their durability and they were unable to withstand the wrath of natural disasters.

Construction structures require quality materials to sustain themselves. Steel bars form the strength framework of construction structures.

Construction structures gets its support and strength from two materials – concrete and steel. Concrete as a material is extremely strong in compression. To compensate for this imbalance, concrete needs to be reinforced with steel bars to help hold it in a compressed state. TMT bar is the best steel bar that helps construction structures withstand and resist induced forces. .

The Significance of TMT Bars?

TMT stands for Thermo-Mechanically Treated Bar. It is described as a high-strength reinforcement bar with a tough outer core and soft inner core. Since its introduction, TMT bars have proven to be extremely viable for reinforcing concrete structures. Today, TMT bars are commonly used as tensioning device to reinforce concrete, helping it resist compressive forces.

Known for its high-strength, sturdy built and robust appearance, it has the capability to provide better reinforcement to any concrete structure. TMT (Thermo-Mechanically Treated) Steel Bars are ideal for building earthquake-resistant structures. They not only help to minimize the effects of damages during any seismic activities, but they also offer the perfect optimum balance between toughness and ductility (Elongation). Further, they also possess high yield strength and greater tensile strength, flexibility, and ductility than mild steel.

Importance Of TMT Bars

The construction industry is largely dependent on the best-quality TMT bars. That is because the TMT bars are strong in tension and at the same time, ductile enough to be shaped or bent. This allows them to bond well with concrete. Apart from that, TMT bars also offers the following benefits:

Suited For All Structures.

The thermo-mechanical treatment exerted in TMT effectively creates temperature gradient between hot inner core and cooler surface. This in-turn generates a hard outer surface through the steel crystalline structure that is superior and ideal for construction. The high temperatures and subsequent shaping by twisting and rolling also makes the TMT bars highly effective for the construction of any kind of reinforced concrete structures like buildings and reservoirs.

Amalgamation Of Properties

TMT bars are loaded with several amazing properties. Their constituent content has low carbon. This allows them to be used for welding joints. Among the steel bars, TMT bars offer the best design flexibility in colour, texture, and shape. It has a unique combination of strength, durability, precision, and malleability that gives the builders a wide array of options to innovate and come up with newer ways of construction.

Easy To Assemble

TMT bars can be swiftly and efficiently assembled in all conditions and seasons. The initial cooling period that TMT bars undergo makes their outer layer extremely hard tempered. And the soft inner-core makes them extremely ductile with the ability to significantly upgrade on strength. Further, they are lighter in weight when compared to other framing materials like concrete, so they not only assures a smaller, simpler construction foundation but also considerable resource efficiencies and economic benefits.

Less Time Consuming

Construction process is time consuming. But with TMT bars, construction works can be rapidly completed. Alterations can be done easily based on the needs and space usage. For instance, TMT bars allows easy alterations to existing electrical wiring, computer networking cables, and communication systems. Overall, construction structures with TMT bars offer greater potential for alterations over time, extending the lifetime of the structures.

Extremely Strong

TMT bars are extremely strong with higher load-bearing capabilities, free of surface irregularities and deformities. They are designed to offer durability, structural stability, and enhanced reinforcement to construction structures. Furthermore, the ribs on their surface ensure superior bonding with cement. This increases the structural stability of the constructed structures.

Economical

Lesser amount of TMT bars can be used when compared to other steel bars categories for construction purposes. TMT bars also offer superior load-bearing capabilities which allow them to be used economically.

Can Be Recycled

Steel can be 99% recycled without the effects of down-cycling. When a steel-framed construction made with TMT bars is demolished, the components can be reused. The material can be circulated into the steel industry’s closed-loop recycling system for melt-down and repurposing. TMT bars can also be endlessly recycled without the loss of properties. This way, TMT bars greatly reduces the exploitation of resources.

Highly Corrosion Resistant

With natural disasters on the rise, modern construction structures need to be highly-corrosion resistant to not only sustain themselves but also to ensure longevity and durability. Thanks to the manufacturing process that often uses quenching. Due to this there is limited or virtually no coarse carbide presence (responsible for rapid corrosion) in TMT bars. This further makes them highly resistant to rust and dirt. And it also ensures that it does not undergo continual decay which is a nagging problem that afflicts construction structures across India.

Good For All Climate Conditions

TMT bars are also highly energy-efficient, and it ensures that the heat is radiated quickly from steel roofing. It creates a cooler structure environment in hot climate areas. Likewise, in cold climates, double TMT steel bars panel walls can be well-insulated to effectively contain the heat.

Trusted Construction Material

Today, TMT bars have become the most sought-after steel bars for construction structures across the world. They are used widely in construction projects ranging from residential / commercial, to high-rises, dams, industrial, underground / underwater / marine structures, long-span bridges, flyovers, malls, airports, and hospitals and so on.
When manufactured to the most accurate specifications under highly controlled conditions, TMT steel bars eliminate the risk of on-site variability. Furthermore, they also make the construction process faster and greatly reduce the cost of construction.

Buy The Best TMT Bars

If you’re looking to purchase TMT bars , you need to ensure that it strikes the right balance between toughness and ductility, with excellent weldability and yield-strength. This way, project managers can focus on the project’s scope and implementation.
Currently, there are several grades of TMT bars in the marketplace such as ARS TMT bars. The higher the grade, the better the TMT bars are. Herein, Fe 550D Grade TMT Bars offers the perfect balance of strength and ductility according to IS Standards. It has exceptional spanning and acoustic noise-dampening capabilities, and dimensional stability. Further, it offers the speed and precision essential for assembling onsite with minimal onsite labour. Hence, it is recommended for all types of construction purposes.
TMT steel bars manufacturer, ARS STEELS offers the best-of-its-kind and long-life TMT steel bar that conforms to BIS standards. And they are extremely robust and guarantees assurance in equilibrium, safety and stability. It can also resist dynamic loading with varied yield and tensile strength. In every sense, it remains an ideal construction material for all types of construction structures.
ARS STEELS has comprehensive stock of raw material and finished products. It is ideally positioned to provide the best quality TMT bars for all types of construction needs.

High Ductility Steel for Strong and Aesthetic Homes.

You don’t have to compromise on your dream home’s design anymore. ARS TMT bars gives you the flexibility to build arches, curves and shapes without compromising on strength. Our certifications are a testament to it. You can also test the steel. And don’t buy till you are satisfied.

550D or Fe 550D is a grade of Thermo-Mechanically Treated (TMT) steel bars, as defined by IS:1786, with Fe – Ferrous being the symbol for the Iron.

The main metal Fe used to make up the bars is iron. The unit Fe 550D – 550 N/mm2 stands for the minimum yield stress in MPA ( The minimum strength of the TMT), while the letter “D” stands for ductility. TMT has bendability and elongation features that help to avoid cracks in it and improve workability [ease of workmanship in the site] This indicates, in plain language, that TMT steel bars of grade 550D have a higher proportion of tensile strength.

Constructions or buildings that need 550D TMT steel bars are those that support big loads. This category includes buildings such as dams, railway bridges, flyovers, stadiums, skyscrapers, airports, industrial structures, windmills, ports, hospitals, tunnels, concrete roadways, malls, and multiplexes.

How Come 550D TMT Steel Bars?

Because D-grade steel is so resistant to seismic activity, it is more commonly used in earthquake-prone areas. As per IS 1786, Fe 550D satisfies the chemical properties approx. with low Carbon, Sulphur, and Phosphorus that help TMT to get more elongation and ductility that aid in the steel’s preservation and resistance to earthquake shocks.

This is true because the TMT manufacturing process produces a steel product with a strong outer shield that gives the TMT steel bar the necessary strength and a soft inner core that gives it the necessary flexibility to survive the devastation of an earthquake’s earth-shaking action.

What Differentiates 550 And 550D Steel?

To create building structures that endure the impacts of time, seismic activity, temperature fluctuations, natural disasters, and more, it is crucial to utilize extremely strong and sturdy steel bars. Today, a wide range of items are being produced using grades Fe 550 and Fe550D more and more frequently. Comparatively, Fe550D grade steel consumption is lower than Fe550 due to minimum to mean weight ranges. As per IS standard, Savings is 4%-5% compared to Fe 550.

D stands for Ductility as well as purity of steel based on the chemical properties. So, it is rust-free than FE 550. Due to its high ductility, it has strong earthquake resistance where TMT can be bent easily and withstand seismic forces more than FE550. Fe 550D is suitable for a variety of residential constructions. They are specially designed to provide stability to high-rise structures and have a high degree of flexibility and strength. They are beneficial in all locations with unexpected loads or severe seismic activity since they can sustain loads much better.

India’s Top TMT Bars

The best 550D TMT steel bars in India are created at Integrated Steel Facilities where everything from sourcing to the finished product is regulated under one roof.

One of the top TMT steel producers in South India, ARS TMT has been in operation since 1990. With our cutting-edge TMT manufacturing facilities strategically placed in Chennai, India’s fastest-growing smart city, ARS TMT meets the region’s rising need for high-quality steel Induction furnaces specifically designed for steel melting, a high-speed rolling mill, and top-notch testing facilities are all part of our infrastructure in Chennai that is bolstered by Indian and International SGS accreditation assurance: A third-party organization to guarantee and verify TMT quality at ARS Factory.

There are two types of steel rods for construction. HYSD and TMT bars. Thermo mechanically treated steels (TMT) are commonly used for constructing houses. The enhanced strength, ductility, and corrosion resistance offered by TMT bars give structures the ability to stand the test of time. And these features make TMT bars ideal for constructing houses.

There are several types of TMT Bars. Even though all TMT steel bars are ideal for construction, there are some critical points to keep in mind when you are planning to buy TMT steel bars for constructing your house.

There Are Different Variety of Grades of Steel Bar, A Few of Which are Listed Below.

Fe 500 –

The market standard for construction bars is Fe 500 bars. The maximum tensile strength and ductility are the reasons why it has been the prime choice for constructing houses. The 500 bars are also used in some high-rise buildings.

Fe 550D TMT Bars –

Fe 550D TMT bars are ideal for coastal regions. The Fe 550D TMT bars can be used for industrial constructions like heavy bridges and underwater structures.

Fe 600–

The strongest bars available in the market. They carry the maximum yield strength of all TMT bars. And it can be used for heavy-duty constructions like towers, industrial plants, and metro structures.

Tips To Buy TMT Steel Bars for House Construction

Examine Needs –

It is important that the construction projects involve a process of reinforcing concrete with TMT steel bars to improve the overall tensile strength of steel bars. Therefore, it is essential for contractors to understand the requirements of their projects. Choosing the right grade of steel bars can avoid any imbalances in concrete reinforcement.

Quality –

Before purchasing, checking the quality of the TMT bars is important. Contractors must also look out for BIS and ISO certifications. Also, check whether the prescribed grade on the steel bar and identification mark are identical. There should be no rust present on the TMT steel bars. ARS steel 550 D is thermo-mechanically treated to produce primary quality with superior ductility that is seismic resistant and stands sturdy during earthquakes. Moreover, the SGS-certification on bars is a mark of good quality.

Budget –

Check if the TMT bar you are choosing suits the budget of your project. Never compromise on the quality by investing in cheap TMT bars. TMT Steel bars define the stability and safety of your house. Talk to the dealer to check if the price tag of the TMT bars matches the quality.

Resistance –

The TMT bar should withstand earthquakes and fire exposure.

Choose ARS Steels for constructing your house.

It will be a good choice to buy ARS TMT Steel bars for constructing your house. Make sure that ARS Steels is purchased from an authorised dealer or supplier. The quality, type, grade, payment options, and delivery time of ARS TMT steel bars is well known.

ARS STEELS- TESTED multiple times for strength.

Don’t just buy any steel. Ask for ARS STEELS, which are tested multiple times for strength and this makes it suitable for easy secure construction.

Strengths of ARS 550D TMT Bars

• Swiss SGS Certified D quality
• Strong and secure construction
• SERC certified savings
• On-site testing
• Corrosion-free with a long-lasting structure

For decades, steel has been an integral part for all types of constructions. It reinforces the concrete and protects the construction structure from getting worn-out from rust or any natural calamity.

There are different types of steel bars. Generally, the type of steel bars varies depending upon factors like geography and environment. Till the 1990s, TOR steel was used vastly. Later, TMT bars superior ductility and other qualities gradually wiped-out TOR steel from the market.

Tor Steel & TMT Bar

TOR is the brand name for ‘Toristeg Steel Corporation’ of Luxembourg. For a brief period, TOR steel, was one of the best grades of steel used in concrete reinforcements. Produced from mild steel billets with limited carbon content, TOR steel is more tensile stress, and its high elasticity value comes from the surface deformation created by twisting of the steel after elongation. As a result, this created residual stress, making TOR steel corrosion prone.

TMT (stands for Thermo-Mechanically Treated) Bar. It is described as a high-strength reinforcement bar with a tough outer core and soft inner core. Since its inception, TMT bars have proven to be extremely viable for reinforcing concrete structures. And it is known for its high-strength, sturdy build and robust appearance. Also, they are corrosion resistance due to its chemical properties, as per ISO Code. Today, TMT bars are commonly used as tensioning device to reinforce concrete and helping it resist compressive forces.

TMT (Thermo-Mechanically Treated) Steel Bars are ideal for building earthquake-resistant structures. They not only help to minimize the effects of damages during any seismic activities, but they also offer the perfect optimum balance between toughness and flexibility (Elongation).

Differences Between TMT Bar & Tor Steel

The processes through which both TMT bars and TOR steel are manufactured are different. And both have unique features. However, the TMT bars have clear advantage over TOR steel. According to IS 1786, TMT is better than TOR steel. And the below mentioned features are reasons as to why TOR steel is less preferred. And not considered as best steel bars.

Tensile Strength:

TMT bars have higher value of yield-strength when compared to TOR steel as it has 2 layers of soft inner core and hard outer core that can withstand the external force and stress. Usage of best TMT bars will result in lower steel quantity. But the use of TOR steel results in 20% more steel quantity.

Ductility:

Ductility refers to the ability of any material to deform, without collapsing even after reaching the failure load. TMT bars possess superior ductility when compared to TOR steel. And possess extraordinary strength which allows them to help a building structure acquire 20% extra strength.

Elongation:

Elongation refers to the ability of any material to elongate before failure. The higher the elongation, the higher will be the ductility. When compared to TOR Steel, TMT bars have hard outer layer and soft inner-core. And this makes construction structures strong and flexible. It will be well-insured from the dangers of natural calamities.

Bendability:

Though both TMT bars and TOR steel possess a good track-record of bendability, TMT steel’s unique soft inner and hard outer core structure effectively eliminates the possibility of breakage during the re-bend process allowing greater elasticity which allows them to bend more to achieve various shapes. Although TOR steel exhibits good bendability, it is susceptible to re-bend breakage.

Weldability:

TMT bars with low carbon content are highly weldable when compared to TOR steel. The low-carbon ingredient in TMT bars makes them a viable choice for hassle-free welding works. Thus, construction designers and architects can create innovative structures without compromising.

Durability:

The residual strain in TOR steel initiates faster corrosion process than in TMT bars. Thanks to their manufacturing process and processing of raw materials. TMT bars stay highly resistant to corrosion. During any construction works, the TMT bars can stay exposed to water for a longer period without getting affected.

Seismic-Resistant:

TMT bars are intrinsically hard and strong than TOR steel. TOR steel softens in the long run and makes them vulnerable. On the other hand, TMT bars with their excellent concrete bond of soft ferrite-pearlite core and reinforcement strength, allows them to absorb a greater amount of energy released during a natural calamity and ensure the longevity of building structures.

Rust Resistant:

TOR steel corrodes due to its high concentration of chloride ions. On the other hand, TMT bars due to absence of Chloride ions and are very highly rust and corrosion-resistant which makes them ideally suitable for construction structures in humid and coastal areas.

Fire-Resistant:

TOR steel contains low thermal stability. On the other hand, TMT bars with their higher thermal stability can retain more than 80% of the ambient temperature yield strength at 300°. This helps the construction structures to stay safe and secure during fire disasters.

Flexibility:

When compared to TOR steel, TMT bars are extremely flexible which allows them to endure high temperature and humidity levels. In addition, they do not crack or break even after turning and bending 180 degrees.

Bonding:

TMT bars bond better than TOR steel with cement. This is possible due to the superior bonding strength of the ribs on the surface of the TMT bars that run across the entire length. Combined with superior strength, TMT bars’ strong bonding capabilities allow them to form a strong structure with concrete or cement. And this provides superior strength to the construction structures and increasing their longevity.

TMT Bars Are Easy On The Pocket

TMT bars are also more affordable when compared to TOR steel. That is because they do not go through additional hardening processes like TOR steel. Constructions consume fewer TMT steels than TOR steels, as it contains 15% less carbon, sulphur, and phosphorus. This reduces energy as well as money spent on deformation processes. Moreover, TMT bars also use 8-11% steel compared to TOR steel and gives longer life to construction structures.

TMT Bars Are Ideal for Indian Climate

India with its hot and humid weather for most part of the year, TMT bars remain the best bet. TMT bars thermos-mechanical treatment technology prevents rust and corrosion. Whereas TOR steel bars contain chloride irons which makes them highly vulnerable in humid conditions.

Though both TOR and TMT bars exhibit high strength, TMT bars are significantly more superior and better suited for large concrete construction structures due to its strength and capacity to survive any weather condition and durability especially in coastal areas where humidity remains a major issue. Their superior ductile feature also helps to protect construction structures during an earthquake.

If you’re looking to purchase TMT bars, it’s important to understand that the true sense of TMT bars lies in the proper balance between toughness and flexibility. So, choosing the right TMT bar will help to begin a new construction on the right note.

Grades Of TMT Bar

There are several grades of TMT bars in the marketplace. The higher the grade, the better the TMT bars are. Herein, Fe 550D Grade TMT Bars offer the perfect balance of strength and flexibility according to IS Standards. Hence, it is recommended for all types of construction purposes.

Steel, an iron alloy primarily made up of iron and 0.2 to 2 percentage of carbon is the most widely used construction material. It is used in the construction of skyscrapers, residential complexes, bridges, reservoirs, commercial buildings and more. The steel rods used for construction strengthen the foundation and increase the overall life of the structure based on the quality of steel bar used.

To begin with it is important to understand the various types of steel bars available in the market and their respective uses, advantages and disadvantages. In India TMT bars come in various sizes ranging from 8mm, 10mm, 12mm and 16mm. However, TMT bars can be custom made to meet a thickness as specified by the structural engineer and designers.

Let’s look at the various grades of steel bars, types and uses in detail.

Grades of TMT Bars

Steel rods used in construction come in various grades ranging from mild steel to High yield strength deformed bars of grade Fe500, Fe550, Fe550D and Fe600. HYSD bars provide greater ductility, flexibility and strength.

Types of Steel Bars

Hot rolled deformed bars, cold rolled deformed bars, mild steel bar, twisted steel bars and welded steel bars are the five different types of steel bars available in the market.

TMT bars, also known as thermo-mechanically treated bars are widely accepted in the construction world owing to their immense strength and ductility. In addition to the above, they are earthquake resistant and provide maximum protection during earthquakes or floods.

Uses of TMT Bars

• TMT steel bars are used in the construction of one way, two way and flat slabs. The size generally varies from 8mm steel rods to 10mm rods and 12mm rods.

• TMT bars used in the formations of stirrups are of minimal thickness where TMT bars of 8mm and 10mm are generally used. Stirrups are provided to hold the primary reinforcement in the right place and prevent the structure from buckling and cracking.

• TMT steel bars of sizes ranging from 32mm to 50mm are used in the formation of Hydraulic structure such as Bridges, Dams, Reservoirs etc. However, TMT bars of higher diameter can be made based on the design requirement.

Last but not the least, it is important to note that the rib pattern present on steel bars provides superior bonding with cement.

Be it a dream home or a super mall, using only the best TMT steel bars for its safety and longevity goes without saying. For which you need TMT steel bars that will hold the concrete blocks together and maintain the structure of your building for years to come. Precisely why, the first step for ensuring your doing so is choosing the right steel distributor.

Choosing substandard bars from the market can be a cheaper option but it comes with costly after-effects. Always choose TMT steel bars from trusted steel distributors so that quality of the steel bars is never compromised.

A Few Reminders When Buying TMT Steel Bars:

TMT Grade

Higher the grade of the TMT bar, better the quality. There are different grades of TMT bars available in India – TMT Fe 500, Fe-550D, Fe-550, and Fe-600. The TMT steel bars can be used according to the space / area of construction. When compared to lower-grade TMT bars like 500D, high-grade TMT bars like 550D have greater yield strength, tensile strength, and elongation. As a result, high-grade TMT bars are better suited for usage in massive and tall constructions since they are more resilient and able to handle greater stress and pressure. Smaller residential buildings and other structures with fewer load-bearing needs can use low-grade TMT bars like 500D.

Tensile Strength & Ductility

The TMT steel bars need to be ductile enough so that it could be bent to suit your requirements as well as strong enough to withstand the weight and pressure that it would be subjected to after construction. Top quality TMT steel bars such as ARS TMT steel bars are strong enough to avoid cracks, even when they are bent at an angle of 90 degrees or more.

Bar Elongation & Ductility

Steel ductility and elongation capability are closely related properties that describe a material’s ability to deform under stress without breaking. Ductility is the extent to which a material can be deformed without fracturing, while elongation is the amount of deformation a material undergoes before it breaks.

The elongation capability of steel is influenced by various factors, including its chemical composition, microstructure, and processing conditions. In general, steels with higher levels of carbon and other alloying elements tend to have lower ductility and elongation due to their greater strength and hardness. Conversely, steels with lower carbon and alloying element contents are more ductile and have higher elongation.

Corrosion Resistance

TMT steel bars are bound to encounter moisture during construction. Substandard bars can easily rust and corrode which would weaken the structure. So ensure to use only top quality TMT steel bars that are corrosion-resistant and moisture-resistant from trusted steel distributors.

Branding And Manufacturers Reputation

Always ensure the manufacturer’s seal is present on every metre of the TMT steel bar. The brand’s logo should also be engraved on every bar. Ensure that all TMT steel bars in the bundle are of equal length and thickness.

Check For Three Distinct Rings When The Cut Ends Of TMT Steel Bars Are Etched:

1) A tempered outer ring of martensite

2) A semi-tempered middle ring of martensite and bainite

3) A mild circular core of bainite, ferrite, and pearlite

Your structure is only as good as the TMT steel bars you use for its construction. Always choose strong and long-lasting TMT steel bars from trusted steel distributors such as ARS TMT steel bars. Which would help you build a dream structure with zero compromise and a lot of pride.

TMT bars also known as “Thermo Mechanically Treated bars” are predominantly used in the construction industry since 1979. A unique technique used in the manufacturing process of these steel rods for construction results in TMT bars with a tough outer core and a soft inner core which ultimately leads to superior strength, high yield stress & elongation, corrosion resistance, earthquake resistance and more. TMT steel bars come in various grades based on the quality of raw materials, grade of steel used and the composition of elements such as Carbon, Sulphur, Phosphorous & Slag.

Grade are assigned to steel rods used in construction based on 3 important factors, namely –

• Chemical composition
• Mechanical properties
• Manufacturing process

Now, let’s look at the different grades of TMT bars available across India are:

• Fe 500:

TMT steel rods for construction of this grade possess higher yield strength, corrosion resistance in comparison with Fe 415 and are extremely bendable. Therefore Fe 500 grade steel rods are used in RCC constructions such as bridges, underground structures, multi – storey commercial building & more.

• Fe 500D:

Fe 500D is the grade of TMT steel bars with iron and a “D,” which stands for ductility or elongation property of the TMT steel bars. using Fe 500D TMT rebar can save 1.70 kg. per metric ton when compared to 500 or lower grade TMT bars. Fe 500D has a higher percentage of elongation than any other grade of TMT bar

• Fe 550:

The chemical & mechanical properties of Fe 550 TMT steel bars are similar to that of Fe 500 however they are a class apart in terms of strength, yield strength, elongation and shock withstanding capacity. Therefore, they are an ideal choice for constructions that are slightly larger in scale and a bit difficult for Fe 500 grade TMT steel bars to handle.

• Fe 550D:

550D or Fe 550D is a grade of Thermo-Mechanically Treated (TMT) steel bars, as defined by IS:1786. Use of 550D TMT steel bars is more prevalent in earthquake prone areas because D grade steel is highly resistant to seismic activity. The lower carbon, Sulphur and phosphorus in Fe550D TMT steel bars helps in preserving the steel and resisting earthquake shocks.

• Fe 600:

Fe 600 grade TMT bars are exceptionally tough and possess strength like no other grade TMT steel bars. Therefore, they are generally used for heavy industrial construction projects as they require extraordinary strength and resistance.

The numbers here indicate the level of stress under which each of them would deform, i.e., TMT bars that can withstand the highest level of stress are superior in strength and rigid.

It’s an undeniable fact that each one of us have a dream about owning a home that matches our taste and fulfils our desires. A house that is spacious, lively and lasts generations. However, it’s also true that it is highly unlikely that we find one that matches our requirements with respect to design, location and features off the market.

Therefore, the ideal way of transforming your dream home into reality is building one. There are various aspects that needs to be thoroughly thought about before embarking on this “Home Building” journey.

Some of the factors are

• Location
• Design
• Quality of materials & construction techniques employed
• Amenities/Features
• Budget & more

Here, let’s understand the importance of a good quality TMT steel bars in construction and the various benefits that come along with it.

TMT Steel bars also known as “Thermo Mechanically Treated bars” increase the structural stability to the structure to a large extent. They do so by resisting bending, compression and transverse resist shearing forces while bearing the entire load of the structure on them.  There are various TMT bar manufacturers across the Nation, and it is extremely important to pick the one that adheres to standards and never compromises on quality.

ARS Steel & Alloys is one such brand that has been delivering top quality TMT for more than 32 years.

The benefits of using ARS TMT steel rods for construction are as follows

• Strength & Durability:

The technology used in manufacturing of ARS 550D TMT steel bars ensures that the bars are tough on the exterior and soft at the interior core. This process retains the strength of the TMT bar and eventually contributes to the long life of the structures built with ARS TMT steel bars

• Superior Bendability:

There are various that contribute to the bendability of TMT bars. It ranges from the quality of raw materials used in the manufacturing process to the chemical composition of the bars and the technology put in place while manufacturing.

ARS TMT bars are the best-in-class TMT bars available in Tamil Nadu. Owning to their superior strength and flexibility, they provide architects and designers the freedom the much-needed design freedom to come up with designs that match the clients’ requirements.

• Cost effectiveness:

The usage of ARS 550D TMT steel bars assures a savings of 4% to 6% on the overall TMT consumption owing to the efficient techniques employed through the entire manufacturing and delivery process. In addition to the above, the flexibility and high elongation property of ARS TMT bars plays a key role in reducing construction time considerably while erecting steel frames, building beams & columns.

• Corrosion resistance:

Owning to the flexibility and high elongation property of ARS TMT bars. The construction time is considerably reduced be it while erecting steel frames, building beams & columns.

• Fire & Earthquake resistance:

ARS 550D steel rods for construction come with exclusively designed vertical and horizontal lugs that provides exceptional concrete-steel power bond. Additionally, properties such as high yield stress, shock resistance and elongation properties provided maximum earthquake resistance.
High thermal stability of ARS TMT steel bars ensures higher structural integrity of the structure in case of a fire hazard.

There are several other benefits of using ARS TMT bars for construction.

For more details visit www.arsgroup.in or call 9710411111