One of the most crucial building materials for any construction is the Thermo mechanically treated steel bars. But what makes them so popular than other building materials? Even though in any major construction the quality of the cement is preferably more important, if you don’t invest in the BIS-certified TMT steel bars you are doing everything wrong.
Also, if you are using poor quality TMT bars that lack high strength, sturdiness and robust appearance, they won’t offer better reinforcement to concrete structures. So, obviously, there’s a huge difference between a BIS-certified rebar and a regular one.
Why Choose BIS-Certified TMT Bars?
TMT bars are nothing but the load bearers of the entire building such as columns, beams, slabs, and the entire paraphernalia that comes under this - the people and their possessions who will live or work in the building after the completion of the construction.
Therefore, these TMT bars not only provide strength to the structures but also reduce damage from seismic activities and water, making them perfect for building earthquake-resistant and corrosion-free structures. As the TMT Steel Bars play such a vital role in the foundation of constructing new structures it’s important to be careful while choosing the right TMT steel Bars for your construction needs. So, how do you understand a BIS-certified TMT steel bar?
1. Different Quality Standards
As a thumb rule, don’t look here and there and choose TMT Steel bars as per the BIS 1786-2008 standard. These are the same as International Standards, for example, BST 500 of DIN 488 (Germany), ASTM A615 Grade 60 (the USA), and BS 444 Grade 460 (Britain).
There are strict guidelines maintained by the BIS 1786-2008 that vary on the mechanical and chemical properties of the TMT bar. For instance, in the current products, the base level should be 530 N/mm2, making the consumer confident about the quality. The product should also have the 18-24% elongation capability as a stabilising factor against a sudden shock.
2. Grade of TMT bars
The most popular grades of TMT bars available in India are Fe-415, Fe-500, Fe-550, Fe-550D, and Fe-650. However, only a trusted TMT bar supplier will deliver certified products as they know steel bars are the core of the construction structure like beams and columns. For the customers, we would recommend choosing higher-grade TMT steel bars for better mechanical and chemical properties.
The mechanical properties mean yield strength, tensile strength, flexibility, and elongation. Whereas, the chemical properties represent carbon content, corrosion resistance, alloying elements, and so on.
3. Manufacturer and Certification Guarantee
Sometimes people often make mistakes because they don’t check the background or the reputation of the supplier. And, if you are a supplier of the TMT bars make sure to check the certificates of the manufacturer. The manufacturer must satisfy the ISO and BIS Certifications as a whole. Only these manufacturers offer steel bars that are limited to ISO 9001:2015 certifications for their Quality Management Systems.
Experienced market professionals believe that buyers can also trust the NAKED TEST philosophy, as it meets the following essentials:
It should have the manufacturer's logo/seal on it.
If the TMT bars are rusty and worn out, never collect those!
The ends of each bundle of TMT rods should be of equal length.
4. Thermal-Resistance
It’s impossible to predict a fire hazard for any human consciousness. That’s why the robust TMT bars are chosen for their excellent thermal-resistance capabilities. Any secondary TMT bar will have this superficial power to withstand fire hazards or heat. Not only this, they are also more resistant during the event of the fire/heat spreading. It means that the building owner can resist the loss of structural strength at higher temperatures.
Bottom Line
So, these are the major differences between BIS-certified TMT steel bars and any ordinary TMT bar. Be aware of the hoaxes and cheaters, and perform all the necessary research before investing in them.
Comments