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Why Are TMT Steel Bars Highly Flexible Compared To Other Steel Bars?

 

Regarding steel bars, flexibility is one of the most critical components that steel rolling mills focus on. With high levels of flexibility, the steel bars can bend effortlessly without breaking. This allows the construction to withstand extra load impact during events such as natural calamities without compromising the structure.

Amongst all the steel bars that are currently in production, TMT bars are one of the flexible steel bars with the best tensile strength. The added benefit of TMT bars being fire and corrosion-resistant makes these bars a preferred choice over any other steel bar. These types of TMT bars are prevalent in countries that experience frequent calamities such as earthquakes, heavy floods and. Some of these countries include Japan, China, Indonesia and more. 

What Is The Significance Of TMT Bars 

Thermo Mechanically Treated(TMT) Bars are commonly known as Reinforcing bars or Rebar. These high-strength reinforcement bars have a tough exterior and soft interior core. Since the creation of TMT bars, they have become highly favoured in construction projects. It has been proven that they are a highly viable option for strengthening concrete structures. It is primarily because of their ability to withstand compressive forces. 

The creation of TMT bars is a process where steel bars go through constant heating and cooling to achieve high yield strength. TMT bars have become a staple in all construction projects. Mostly due to their robust build, appearance and strength with which they provide reinforcements to every concrete structure. 

TMT bars also positively impacted the construction industry due to their resistance to seismic forces. During calamities like earthquakes, due to their inherent flexibility, they minimise the damage done by seismic activities and prevent property damage and loss of life. TMT bars have also achieved thermal resistance, making them the safest choice. The other properties of TMT steel bars, such as high yield strength, tensile strength, and ductility, are just some of the reasons why they stand apart from regular steel bars. 

When the question arises of why TMT bars are significant, it is simply because they transformed the construction industry with their properties. They also facilitated the creation of much more complex yet safer construction projects. 

How are TMT Bars Flexible?

TMT bars have to go through thermal processing in a steel plant. These steps include rolling through heat treatment and water quenching in the steel rolling mills.

When the quenching takes place, the hot rolled bar is cooled in a quenching box within a controlled environment. The water only cools the bar’s surface to ensure that the hot rolled bars’ core retains heat. Then the process of self-tempering begins by adding heat to the surface. The outer layer then hardens and transforms into martensite, resistant to stress and pressure, while the inner core remains soft and austenitic. This process improves tensile strength and ductility and allows elongation to withstand high stress in structures such as flyovers, dams and more.

When the bar passes the final stage, it goes through cooling beds, where the inner layer of the bar converts into a ferrite-pearlite-crystal structure. This microstructure arrangement in the TMT bar ensures that all the properties are incorporated. 

Assessing The Flexibility of TMT bars

Commonly known as the Bending and re-bending Test, this test determines the flexibility of steel bars. In this test, TMT bars are bent to 135 degrees and immersed in boiling water for approximately 30 minutes. After the time elapsed, the bar re-bent to around 158 degrees. The test ensures that the TMT bars can bend to such degrees without any surface cracks along the bends. 

Find the best TMT Bar Rolling Mill

We at the Steefo group understand the importance of TMT bars and their role in the steel and construction industry; therefore, we are the number one producer of TMT bar rolling mills. These TMT bar rolling mills are a part of Steefo’s DNA. We are the creators of ultra-modern, integrated automation solutions developed to increase productivity and decrease workforce requirements, guaranteeing a faster return on investment. 

For queries related to TMT bar rolling mills, you can reach out to us by calling us at +919824076873 or drop us a mail at marketing@thesteefogroup.com

You can also check with our consultants to understand TMT rolling mill project costs! We would be happy to help!

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The Steefo Group: Innovating Rolling Mill Solutions Around the World

 

When we talk about reliable experts in steel forming, the only name that comes to the forefront is The Steefo Group. Our reputation stems from the word steel forming. Our origins are rooted in excellence and superior production, both in national and international export markets. 

The Origins of The Steefo Group 

The Steefo Group has humble beginnings; we started our journey four decades ago in 1976.  With Mr K.K Agarwal laying the foundation of the  Steefo Industries in 1976, starting our first order in 1979 to achieving our first export order in 1991, we have always had an upwards trajectory. The only goal that we had in mind was to provide precision in design and manufacturing and produce superior quality products and turnkey solutions that fit our clients’ expectations and standards. 

We aimed to become the one-stop shop for all steel rolling and melting industries. We have expanded our services and products since 1976, and now we have a group of expert engineers catering to numerous sections of this ever-demanding industry.

The Steefo Group Quality

One thing that we have pledged to maintain and have never compromised on is quality. The name of The Steefo Group is recognised worldwide today because we are consistent in provisioning high-quality products. We hold ourselves to the strictest standard and norms possible to ensure that only products of the highest grade products to our clients. 

We have a dedicated quality assurance team that performs quality checks and rigorous testing from raw materials to the finished products. This is done to ensure that we stay true to the promise of being your reliable steel forming partners. We take a quality-based approach to quality commitment.  

Our Commitment To Innovation 

From its very inception, Steefo has been dedicated to growth and innovation.  We believe that innovation can transform change into new beginnings and fruitful opportunities. Innovation is more than just developing new products but rather producing cohesive design and technology that comply with the constant evolution. Our team of dedicated and experienced design engineers have the vision and talent to delve into undiscovered and uncertain aspects of the world of steel forming to discover and develop new processes, systems, and management methods to positively impact the growth, productivity, and profitability of our clients. 

When you partner with us, you invest in premium grade products and are consistently provided with a workforce that offers the skill to produce the best output in the competitive steel forming market. 

Research and Development

The Steefo Group is known worldwide because of our drive toward developing and improving our R&D and design capabilities. We invest our resources in technical improvements because we know that only development in the field of technology guarantees consistent improvement in our manufacturing speed and product quality. Only the most advanced technology can cater to and match the demands of our varied clients. We utilise software such as CAD and Kissoft and more to procure future-ready equipment that complies with industry 4.0. 

How Has The Steefo Group Solutions Transformed the Steel Rolling Industry?

The Steefo Industry has become synonymous with innovative and unique turnkey solutions that transform rolling mill solutions worldwide. From concept to commissioning of rolling mills and integrated steel plant, we have complete expertise in all aspects of the field. Multiple turnkey projects are supplied with plant equipment and execution, including erection and commissioning to obtain the maximum desired production value. 

1. TMT Bar Rolling Mill 

Steefo Group - TMT bar rolling mill

For The Steefo Group, TMT bar rolling mills have been ingrained in our DNA. Being your one-stop-shop for all your rolling mill solutions, we ensure that we provide our clients with innovative and modern designs in our turnkey solutions. Our expert engineers can handle these projects from concept to commissioning. We constantly customize our products according to the demands and needs of our clients and have production capabilities ranging from 80 TPH to 100 TPH. We ensure that productivity is boosted and ensure faster ROI.

2. Structural Rolling Mill 

The production process in the rolling mill

The Steefo Group is a front runner amongst companies known to produce end-to-end solutions for structural rolling mills. We guarantee that our structural rolling mills have the most incredible performance capacity and shortest downtimes.

3. Wire Rod Mill

Wire rod mill solutions

We have mastered wire rod mills over four decades and have become a trusted name in this industry when it comes to the production of wire rod mills. From cost-effectiveness to flexibility, the growing demand for wire rods is being matched by our support in creating impeccable wire rod mills to allow large production capacities. The Steefo Group creates wire rod mills that are not only high speed but are also capable of rolling themselves into the smaller dimension to increase production rates. 

The Services of The Steefo Group That Sets Them Apart

For anything related to steel, you can trust The Steefo Group. From process analysis to optimization and up-gradation, our skilled engineers are here to help you from start to finish. Our end goal is to drive our clients towards success and profitability. 

1. Product Design and Engineering

As your reliable steel-forming partner, you can trust us as we are equipped with worldwide experience in implementing turnkey solutions. Our technical departments come together to customise the project to your exact requirements. From individual to products to complete solutions, we provide it with all to ensure that our clients do not face any disadvantage in any step of the process. 

2. Spares and Consumables 

We have provided superior customer support and client satisfaction throughout the project lifecycle. We understand how demanding the process is, and that is why we are there every step of the way. We are not only involved in turnkey projects; we also offer spare parts and consumable products to our customers to ensure prolonged service and consistent performance and endurance. 

3. Technical Support and Repairs

The Steefo Group always ensures that the steel plants are always equipped with advanced technology to maintain and raise the bar in terms of quality and production. Our team of engineers works closely to keep an eye on the project until the output production stage to prevent downtime and cost overruns. 

4. Service Agreement Program

Surviving the rapidly evolving steel market is not an easy task. We meet the demands of the evolving market and rapidly proceed to optimise and improve the efficiency and quality of the plant. It includes adopting the best practices and maintaining equipment and machinery pristine and well maintained. Our company provides a complete service program to ensure that your products reach peak performance levels. The entire process involves evaluating equipment and improving them whenever deemed necessary. 

Why Work With The Steefo Group?

Today, The Steefo Group has reached this level of success due to its relentless drive toward excellence and an uncompromising attitude towards quality. We are constantly evolving and trying to improve our current products and solutions, and therefore, we have transformed into the leading innovation in the world of rolling mills. 

When you work with us, you get high-quality products and receive constant support from our team of professionals. Join the world of success. To learn more, call us at +91 98240 76873 or drop us a mail at marketing@thesteefogroup.com

 

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The Dramatic Rise in demand for TMT Steel Bars in India

 

The introduction of Thermo Mechanically Treated (TMT) steel bars began a new era in the Indian construction industry. Round plain steel reigned supreme until the sixties but was then ousted by TOR steel in the seventies and maintained dominance until the nineties came into the picture. In the late nineties, TMT steel and corrosion resistance steel made their grand debut, transforming the face of RCC structure by making them more resilient and long-lasting. 

What Makes TMT Bars Stand Apart?

The term TMT bars has become the industry staple for constructing any structure, starting from bridges, flyovers, dams, hydel power plants, industrial structures, high-rise buildings, rapid transport systems, and more. TMT or Thermo Mechanically Treated bars uses Quenching and Tempering technology during production, obtaining their unique strength from that process. There is no chemical treatment involved in the manufacturing of TMT bars. 

But what gives TMT bar the unique edge that allows them to conquer the construction industry? 

Here are some of the attributes:

  • TMT bars’ carbon content is limited to 0.2% to achieve weldability and suffers no strength loss. 
  • Ordinary electrodes have the ability to weld joints without any extra precaution.
  • Due to their tough exterior and soft interiors, they have incredible ductility.

TMT bars tick all the three crucial boxes, strength, weldability and ductility, making them economical and safe for usage. A bonus is the corrosion resistance that TMT bars obtain since the cooling process avoids the formation of coarse carbide. The soft ferrite pearlite increases seismic loading. TMT bars are usually produced in Fe- 415, Fe – 500,  Fe – 550, Fe 500D, Fe 550D grades with diameter starting from 8,10,12,16,20,25, 28, 32, 36, 40 MM, with a standard length anywhere from 5.5 -13 metres.

TMT Bars and the Indian Market 

India’s iron and steel industry has come to occupy a dominant place in the country’s socio-economic development. India also ranks seventh as the largest crude steel-producing nation in the world. The Indian steel industry has gone through tumultuous business cycles, with several ups and downs. Today the industry is on the cusp of a significant change as it gears toward an expansion of ambitious standards. 

The secondary producers of the Indian steel industry are joining forces with the main producers. The emergence of the secondary producers has initially been modest in the post-liberalized decade in the steel scene. Still, it steadily contributes to the development of the domestic steel and iron industry in aspects of capacity, production, spread,  necessitation and commodity basket. 

Steel production in India received a massive boost with the introduction of the Industrial Policy Resolution of 1956. This is where the public sector saw three SAIL plants being set up in the late 1950s and the fourth one in the early !970s. These plants, along with VISL, TISCO and IISCO(now a part of SAIL), were the sole producers of integrated steel till the eighties (RINL came into production in the early nineties)  

There was a rising demand for the secondary sector for smaller-scale steel producers in the seventies. Specifically for those who had opted for induction furnace routes or the scrap-DRI based electric arc furnace, particularly for meeting local demands. 

Semi-finished billets and ingots manufactured by this part led to the commissioning of considerable re-rolling units to transform semi-finished steel into rods and bars that can be utilised mainly in the construction industry. 

The re-rolling part faced several market challenges, especially in high energy consumption and prices. However, there is a bright prospect of future growth, given the pace of construction and infrastructure activities. Experts estimate that the secondary producers in total crude steel production will increase from the current under -50% mark to at least 53%. 

We are also seeing an increase of foreign steel plants setting up steel plants in India, gearing up to venture into their dream project as the steel industry of India prepares for a new era. An era that will include the dominance of the Indian iron and steel industry. The steady growth of the Indian economy because of the steel industry has also increased infrastructure from township complexes to roads, bridges, and civil construction projects, which guarantees the continuous demand for TMT bars. 

Find the best TMT Bar Rolling Mill

We at the Steefo group understand the importance of TMT bars; therefore, we are the number one producer of TMT bar rolling mills. These TMT bar rolling mills are a part of Steefo’s DNA. We are the creators of ultra-modern, integrated automation solutions, developed to increase productivity and decrease manpower, guaranteeing a faster return on investment. 

For queries related to TMT bar rolling mills, you can reach out to us by calling us at +919824076873 or write to us at marketing@thesteefogroup.com.

You can also check with our experts to understand TMT rolling mill project costs! We would be happy to help!

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5 Best Reasons Why TMT Bar is the Future of the Steel and Construction Industry

 

The Indian construction industry has gone through a transformative phase since the late 1990s, both in technology and research. The proof of this rapid developmental stride is in the steel industry’s products- most of today’s products did not exist a decade ago. The industry has also made its presence in India’s numerous developmental plans in rural, urban and metropolitan areas. With the introduction of robust technological advancements, the popularity of steel products has also increased in the nation. 

But to be the future of any industry, products must meet the growing consumer demands and address the environmental factors. Historically, the steel industry has always been associated with ecological deterioration and destruction. To improve upon that aspect, the steel and construction industry worldwide has advanced into more environmentally conscious modes of production. The goal is to become more sustainable and reduce the industry’s carbon footprint. 

Here is where products such as the TMT bars come into action. TMT bars have proven to be the solution as the bars have adapted to future demands. Let us find out how they have proven to be a massive asset to the construction industry. 

What are TMT Bars?

Before we delve into the benefits, let’s find out all about TMT bars? ‘Thermo Mechanical Treatment’ bars, better known as TMT bars, are among the most necessary construction materials worldwide. They are high-strength reinforcement bars manufactured using a distinctive technique that endows them with a rigid outer surface and a soft internal core, making them strong yet flexible.

TMT bars are steel bars of a new era, suited for concrete reinforcement. These bars are employed widely in modern-day construction work, emphasising quality, safety, and longevity. 

Before TMT Bars

Before TMT bars came into the industry, Cold Twisted Deformed Bars, also known as CTD bars and M.S or Mild Steel Bars, were used for Reinforced Cement Concrete work. These bars failed to deliver on ductility and corrosion resistance compromising structural integrity in the long run. Hence, TMT bars came into existence to combat the downsides of previous construction materials and have now evolved into the most commonly used material for long-lasting structure construction. 

Why is TMT Bar The Future of the Industry?

When we observe the construction industry’s economy, we can witness the advent of the TMT (Thermo mechanically treated) steel bars. These bars are paving a new epoch of advanced growth and demand graph in the steel market.

Here is the reason why we are seeing such growth: 

1. Recyclability and Waste Management

The steel industry is circular, meaning that the generated waste can be used as an input in further production without losing its core properties. Therefore a waste generated can easily be melted and reconstructed, raising the rates of recovery in comparison to other products. It is also relatively easy to recover steel from other waste materials. At present, recycled steel represents as much as thirty percent of the whole new production process of steel making.

2. Longevity 

A key reason why TMT bars are becoming the face of the future of construction is their longevity. TMT bars production takes place, keeping in mind durability. Before TMT bars, iron rods were used in construction, making them prone to corrosion. For example, during the CTD bar manufacturing process, the method of twisting the rods negatively affects the ductility of the bar. It also breaks the protective blue oxide, making the CTD bars susceptible to corrosion.

On the other hand, TMT bars obtain anti-rust properties during the manufacturing process. Due to the intense cooling, coarse carbide, which is the foremost cause of the corrosion, does not get a chance to build up, creating the most durable bars. 

3. Strength 

Compared to ordinary reinforcement bars, the strength of TMT bars sets them apart and makes them the most suitable choice for any construction. The reason behind their strength and ductility is the extreme cooling it receives. The manufacturing process passes through a water cooling system which causes the outer surface to toughen. The ribbed texture of the TMT bar also allows better adhesion with the concrete, offering it more strength, while the flexibility makes it easier to work with. 

4. Disaster Resistant 

All scenarios are considered during construction, even the possibility of man-made or natural disasters. TMT bars are known to be earthquake and fire-resistant, making them a safer choice than other bars. 

The advantage of using TMT bars is their high thermal stability. Because of this property, they can tolerate severe temperatures varying from 400 to 600 degrees Celsius and maintain more than 80% of their ambient temperature yield strength at 300°.

TMT bars are a staple in earthquake-prone zones due to their ability to withstand high levels of stress and pressure because of their fatigue-resistant properties. The soft inner core and the rigid exterior make the bars very ductile, which permits them to absorb shock causing minimal damage to the structure.

5. Weldability 

Architects and engineers are looking to create more unorthodox and unique designs in this modern era without compromising basic structural integrity. TMT bars have high weldability because of the low carbon content. Also, since there is no pre or post-welding treatment, the process is more efficient for the workers.

The Future of TMT Bars

The growth potential of TMT bars is very promising, mainly because of the speed and scale of the infrastructure and the construction activities. Since India is still a budding market, construction-related works have a tremendous scope, which can pump the demand potential in the steel and TMT industry markets. 

Reach out for High-Quality and High-Performance Products

The Steefo Group has been the most trusted name in precision designing, manufacturing, and providing top-notch products and solutions in the field of steel rolling for four decades. They are also pioneers in providing consultancy and manufacturing of rolling mill plants. 

For queries related to TMT bar rolling mills, you can reach out to us by calling us at +919824076873 or write to us at marketing@thesteefogroup.com. You can also check with our consultants to understand TMT rolling mill project costs! We would be happy to help!