Exploring Different Grades Of TMT Bars And Their Applications

TMT steel manufacturers in India have revolutionised the formation of RCC constructions. Since their inception in the late 90s, the majority of modern buildings get their strength from TMT steel bars. They have captured the industry with their unique features. The steel bars have a hard exterior and soft interior which makes it simple to weld. 

Besides, they are affordable and can bear massive loads and environmental issues like seismic activities, corrosion, hurricanes, etc. That's why the architect and designers use them for contemporary constructions like residential buildings, skyscrapers, dams, bridges, etc. 

So, are you looking for the best TMT bar in India? The first thing you must focus upon is to learn their different grades and applications. The following information provided in the blog will help you stay out of fraudulent practices.

Types Of TMT Bars And Their Uses 

TMT bars get their ratings depending on the yield stress of the material and its capability to withstand any force without showing any damage. Hence the type of TMT bars used in constructions relies on the toughness, load-bearing capacity, durability, and the manufacturing process.

Quenching, Self Tempering, and Atmospheric cooling are the steps involved in the Thermo Mechanical Treatment process that gives birth to four grades of TMT steel bars - Fe 415, Fe 500, Fe 550, and Fe 600. Here the ‘FE’ stands for the iron required to make these bars. 

Now, let’s study them in detail: 

1. Fe 415 grade TMT bars

These might be the least expensive TMT bars in the market, still they are useful. Their ductility allows the constructors to mould them easily into any shapes they prefer. Hence, they are typically used in modest civil and commercial construction projects, mainly small steel structures and residential buildings.

It requires very little power to deform the geometry of Fe 415 TMT bars because their yield strength is of 415 N/sq.mm. This allows them for elongation a minimum percentage of 14.5%. They can go through strong tremor which makes them an ultimate choice for locations prone to earthquakes and other seismic activity. 

2. Fe 500 grade TMT bars

Fe 500 are the most popular TMT bars available in the Indian market. Fe 500D and Fe 500S are the variants of Fe 500 TMT bars, where ‘D’ represents ductility and ‘S’ stands for saline tolerance. They are 20% stronger compared to Fe 415 grade. In addition to that, they are more economical compared to others and, therefore, useful for all types of building work. 

Being corrosion resistant and with a high weight carrying capacity, they are used for constructing buildings and homes like residential high-rise projects, industrial projects, bridges, etc.  

3. Fe 550 grade TMT bars:

The TMT manufacturers in India have smartly categorised the rebars as per their uses and strength. With higher tensile power, they are mostly used for industrial applications that require the support of enormous loads. 

Along with iron, other materials like carbon, sulphur, and phosphorus, produces a high-grade alloy steel. Due to its durability, the constructors use them for  building industrial projects or creating massive structures like bridges. 

4. Fe 600 grade TMT bars:

This is the strongest form of TMT bars used in infrastructure projects like maritime, skyscrapers, highways, metro tracks,  etc. They can carry enormous weight and are significantly used for long-term applications that call for corrosion-resistant elements. 

They might appear costly at the first glance, but it will save your pockets later. How? As you will require fewer Fe 600 steel bars for constructions. 

Last Read

The chemical properties of TMT bars may not differ much, but what makes them different is their production quality. Therefore, you must look for the best TMT steel manufacturers in India who put all their efforts in client satisfaction.