Why are TMT bars necessary for construction?

by ARS Steel
POSTED ON
Aug 01, 2023
high strength and ductility tmt bars

When it comes to which steel is best for construction, the criteria to consider among steel rods for construction are strength, durability, and safety of structures.

It is important to not compromise the significance of high-quality materials. Steel, an iron alloy primarily made up of iron and 0.2 to 2 percent of carbon, is the most widely used construction material. The steel bars used for construction strengthen the foundation and increase the overall life of the structure based on the quality of steel bars used. In terms of construction, one material type essential to keep the building held high is Thermo-Mechanically treated bars.

Various reasons make TMT steel bars exceptional from the rest. These bars undergo the selected production process to meet the requirements for the best quality such as:

Billet Preparation: Using CRC and unique metal proposition into square or round shapes, ensuring the composition and quality.

Heating: The billets are heated to a temperature of approximately 1,200 to 1,250 degrees Celsius. This high temperature is necessary for the subsequent rolling process.

Hot Rolling: The heated billets are passed through a series of rolling mills. These mills gradually shape the billets into the desired size and shape, reducing their cross-section and increasing their length.

Quenching: After the hot rolling process, the TMT bars are rapidly cooled with a German Technology. This rapid cooling, known as quenching, causes the outer layer of the bars to cool rapidly, forming a hardened structure known as the martensitic layer.

Self-Tempering: The TMT bars are left to cool naturally in ambient air. During this self-tempering process, the heat from the hot core of the bars is transferred to the cooler outer layer. This transformation imparts excellent ductility and toughness to the TMT bars.

Cooling and Atmospheric Cooling: Once self-tempering is complete, the TMT bars are allowed to cool further in the air, ensuring uniform cooling and preventing the formation of undesirable microstructures. This moulds their excellent bendability without compromising strength.

Quality Control: Throughout the production process, Regular sampling, and testing of the bars for properties, such as strength, ductility, and elongation, are conducted to ensure they meet the specified standards is also necessary.

Superior Strength and Structural Integrity: 


TMT, Thermo-mechanically treated steel bars have exceptional strength and structural integrity due to the unique composition gained from heat treatment and controlled cooling. It results in a microstructure with tempered outer layer and a soft core ensures TMT rods are of unprecedented strength, which makes them a perfect fit for withstanding high stresses, seismic forces, and severe weather conditions.

Enhanced Safety: 


The safety aspects of construction are essential. TMT steel bars are capable of absorbing and distributing the energy that has been produced by earthquakes, which reduces the risk of structural collapse; this attribute is particularly important.

Corrosion Resistance: 


The outer tampered layer formed during the manufacturing process acts as a protective barrier in these steel rods for construction against corrosion and rust. This resistance to corrosion significantly enhances the lifespan of the bars, making them ideal for construction in coastal areas or regions with high humidity.

Weldability and Bendability: 


Another advantage of TMT bars is their excellent weldability and bendability. TMT bars often need to be welded or bent to meet specific design requirements. With their unique manufacturing process, TMT bars offer superior weldability without compromising strength. They can be easily bent and shaped without the risk of cracks or breakage, allowing for versatile construction options.

Cost-effectiveness: 


While ensuring structural integrity and safety, TMT steel bars also provide cost-effectiveness in the long run. Their durability and resistance to corrosion eliminate the need for frequent maintenance or replacement. The use of TMT steel bars reduces the overall construction costs by providing a reliable and long-lasting foundation for structures.

Steel works with higher quality raw materials. Excellent quenching and tempering equipment are needed in every production of steel. All manufacturing companies should undergo rigorous steps to get the best quality and pass the quality checks. There are various units for steel manufacturing and one of the best-known trusted brands in this steel industry is ARS Steel, it is a reliable partner in construction. Offering a diverse selection of high-quality TMT steel bars which follows the exact temperature and production process needed with their commitment to provide top-grade TMT steel bars ensures that one can rely on their products to create structures that stand the test of time.