Interesting Facts about TOP TMT Bars

There is no denying the way that building a house is one of the most significant choices in a man’s life as it will have lifelong ramifications. As you all know that TMT or Thermo Mechanically Treated bars are manufactured in a unique process. Highly advanced manufacturing process offers extra strength to outer regions of the steel bars while making the inner core soft.

The cities have become full of concrete structures. Dams, bridges, skyscrapers, multi-storied buildings, homes are built almost every day. Now, it is necessary to make these structures strong so that it can withstand all kinds of natural calamities. Only one solution that can make a concrete structure powerful is the use of TMT steel bars. These bars allow a structure to stand erect for years and survive natural disasters and extreme conditions.

The global high strength steel market size was USD 31.03 billion in 2019 and is projected to reach USD 54.07 billion by 2027, exhibiting a CAGR of 7.4% during the forecast period.

Have you ever noticed the rings on steel reinforcement bars? If you closely examine the bars, then you will see rings on the bars’ body, which are known as ribs. They provide strength, bendable and rust proof.

As customers, all of us need to look carefully at the concrete structures built around us, we see that these structures aren’t 100% perfect and might crack overtime. So, let’s go directly into the reasons for such cracks and there are multiple literatures in the web.

Top tmt bar  has a crucial role in building a strong world. It is this metal that makes much of our life moving forward. From its invention, to the most current technologies and uses, it won’t be fallacious saying that the world won’t have been the same without this revolutionary material. Best TMT Bars not just hasn’t changed millions of lives; it has been contributing immensely to the cause of the world. Steel propels the world’s economy and nations’ growth relies heavily on it.

This circular economy concept fundamentally is the bottom line concept of sustainability, which focuses on the interplay between environmental, social and economic factors. They are based on a life cycle approach. In a well-structured circular economy, tmt steel bar has noteworthy benefits over competing materials. That said, continuing to fulfill a positive role in our sustainable future comes with some major challenges.

Best tmt bars is a major constituent material that goes into making of a wide range of market applications and products that we see in the market, such as in the automotive, construction and packaging sectors. Thanks to Innovative technology developments and synergies with other industries, steel is being continually recycled without loss of properties or performance is itself a great advantage. Steel scrap is 100% recyclable, and it can be reused any number of times without damage or harm in quality. It has brought the steel industry ever closer to its goal of zero waste to landfill. 40% of the world’s steel is made from scrap steel, and on average new steel products contain 37% recycled steel. Any grade of steel can be recycled to top quality new metal, without affecting the quality of materials as steel is recycled repeatedly.

Over the past many years, use of the steel industry’s co-products has increased considerably. Steel industry co-products like blast furnace slag, steelmaking slag, process gases, dust and sludge are being readily used as substitute for clinker in cement-making, aggregates in road construction, soil improvement, heat and electricity production, or it could be also used as tar, ammonia, phenol, sulphuric acid and naphthalene for the chemical industry. Not only do they contribute to the conservation of resources, it saves natural resources and reduces environmental impact.

Steel industry’s improved energy efficiency has reduced the cost of production, thanks to the technological prowess that has gone into production in the last 20 years. The energy generated from waste is also captured and used effectively.

The global steel industry is working together on a number of path-breaking initiatives in technology development and sharing programmes where all necessary data are shared on subjects impacting the steel industry. This directly contributes to improving the environmental performance of steel plants around the globe especially in air quality, by-products, energy use, maintenance and reliability, raw materials, and water management. The World Auto Steel is steadily working on a program for optimizing steel use in future vehicles, including electric and hybrid. Striking the right balance between the rising demand for steel and efforts of meeting the global need for sustainability is indeed a tough ask. But with all these efforts we can rest assured that the world is safe and the efforts are definitely in sync with the changing needs of the Industry and the people at large.

With rising demand for tmt steel bars with larger diameters with bendability, weld-ability, elongation and strength like small diameter bars. Two new technologies came to the rescue:

1. Micro-alloying

   : This is a process of adding alloying elements like niobium, molybdenum, vanadium, boron, titanium, zirconium, and rare-earth metals individually or in combination with steel. Though the process helps produce rebars with high yield strength (500 and 550 MPa). But the exorbitant costs make it unviable plus these rebars have low ductility.

2. Thermo Mechanical Treatment (TMT): Best TMT or Thermo Mechanically Treated steel is the latest in the evolutionary cycle of steel bars. It is a much more cost-effective method that meets all the demands of the construction industry – superior weld-ability, strength, ductility and bend-ability.

The role of a contractor is extremely important in the execution of a project. A contractor is like an army captain executing orders and ensuring the success of an operation. This job comes with a lot of challenges. Manpower issues, logistics, supply of raw materials among others can hamper a project.

Thermo mechanical processing is a metallurgical process that combines mechanical deformation process like compression or forging, rolling etc. with thermal processes like heat-treatment, water quenching, heating and cooling at various rates into a single process.

TMT bars or Thermo-Mechanically Treated bars are generated through this thermo mechanical process. It is this process which makes the bar having a tough outer core and a soft inner core. First step of the manufacturing process involves passing billets into a furnace through a rolling mill stand. Steel billets are heated to approximately 1200°C to 1250°C in a reheat furnace. Then, they are progressively rolled to reduce the billets to the final size and shape of reinforcing bar.

India’s production of crude steel was at 28.3 million tons (MT) in 2017, behind China and the United States which produced 770 MT and 88 MT respectively. India’s production made up 9% of global production and it is expected to reach 12% by 2027.

The history of TMT bars takes us back to the 1800s when it all started in America and Great Britain. The production of steel bars was a stepping stone for economic and cultural growth, taking the world to the next level of advancement in technology. Steel bars became the backbone of many industrial revolutions.

According to historians, India had started manufacturing its steel in 400 BCE, where it was used in arrows. However, it was recognized with Bengal Iron Works (BIW) which was set up in West Bengal in 1874. 

Though steel bar manufacturing came to India in 1874, we were globally known only when TATA Iron and Steel companies were established by the great Jamshedji Tata in 1907. Jamshedji Tata is also known as the father of the steel industry.

In the olden days, the manufacturing of steel was at its initial stages and the structures built were using mild steel bars which were not adequate and needed advancement. As the practice continued to install steel bars with concrete for better strength, TMT bars came into existence. These TMT bars flourished in steel industries with huge opportunities and took them to new heights.

TMT bars manufacturing has always been in an upward growth and with every manufacturing and testing, a new and better form of TMT bars was introduced. Let us see some of them.

First, the TMT bar was introduced in 1979 with a Grade called Fe415 which was used widely for construction purposes. The Fe 415 is very flexible and can be bent to any shape without any special tools. There is a subtypes –  Fe 415S and Fe 415D, one can choose any of them based on their requirement.

Then, came the Fe 500D, which was and also has been present in the market for a very long time and was very well known for its strength when compared to the Fe 415. In Fe 500 one can opt for Fe 500D or Fe 500S for better stability or ductility. It was majorly used for multi-story buildings

Fe 550 grade was one of the best TMT bars which were used as a common steel bar for all types of works as it has great tensile strength compared to all other TMT steel bars. It is mainly used for large industrial construction which requires a great amount of strength.

One of the strongest and most well-known TMT bars and is recommended by every constructor is Fe 600 grade TMT bars. This is a superior TMT bar in comparison and is used to build Bridges, Tunnels, Towers, and so on. 

Although India’s IS:1786 building codes specify only Fe-415 for reinforced cement concrete, its usage is declining as the market is shifting to higher grades. The construction industry has started adopting newer grades like Fe500, Fe550, and Fe500-D.

Higher value-added products like corrosion-resistant steel bars, epoxy-coated, earthquake-resistant and galvanized rebars are making their mark in India’s fast-growing TMT bar market. TMT bars with 8mm and 25mm are being used in infrastructure projects, buildings, bridges and highways. With an estimated demand of around 40 million tons, manufacturers are envisaging excellent growth in the coming decade.

The Indian market has several regional players serving local customers and their acceptance among consumers is good, resulting in high business volumes in the regional markets. Global consultancy Frost & Sullivan forecasts India’s demand for rebars to hit 41.82 MnT by 2020-21.

Producers like Tata Steel, SAIL, Vizag Steel, Jindal Steel and Power Limited and JSW Steel account for a sizeable chunk of the rebars market, although a major share has been grabbed by regional manufacturers including Shyam TMT – a reliable brand based in Eastern India.

Thermo Mechanical Treatment is a simultaneous application to steel that involves heating and cooling. The processes develop better properties in steel by refining its micro structure and ensure durability, ductility and strength. The process developed has many advantages.

• TMT bars have a special rib design that enhances their quality and bonding with cement.
• Having a high elongation point, the bars are earthquake-resistant and can easily elongate without compromising their actual measurement or quality. Elongation is a TMT bar’s ability to elongate or deform before it is damaged. Greater the elongation, stronger the building.
• They are highly flexible or ductile – the soft ferrite-pearlite core of the bars gives superior bend-ability ensuring that they can be easily bent and moulded.
• TMT bars are highly ductile and have a super-strong surface layer which help TMT bars withstand fatigue for long.
• TMT bars are much stronger than conventional steel bars and can give up to 20% stronger concrete structure with the same amount of steel.
• TMT bars are corrosion resistant. In sites where the TMT bars are exposed to water and moisture for long, the anti-corrosive properties of TMT bars extend their lifespan and ensures safety of the structures.
• The superior weld-ability of TMT bars encourages architects and designers to build innovative, aesthetic structures without compromising on quality.

In terms of geography, the global thermo-mechanically treated (TMT) steel bars market can be segregated into North America, Asia Pacific, Europe, Latin America, and Middle East & Africa. Demand for TMT steel bar is high in North America. The U.S. is a leading consumer of thermo-mechanically treated (TMT) steel bars due to high demand from construction and re-construction industries. Based on demand, Europe accounts for a large share of the global market due to increase in demand for global thermo-mechanically treated (TMT) steel bars market from the construction industry. The global thermo-mechanically treated (TMT) steel bars market in Asia Pacific is expanding at a considerable pace. Demand for thermo-mechanically treated (TMT) steel bars is high in countries such as Japan, China, and India. The global thermo-mechanically treated (TMT) steel bars market in India is anticipated to expand at considerable pace during the forecast period due to the rapid growth in the construction industry.