By Shree Ji Steel Corporation

01/30/2020 The iron rods are used for constructing buildings and other concrete structures like bridges, flyovers. These have become a fundamental requirement for construction. These improve the safety and durability of the structure and give some extra strength. By preventing damages these ensure longevity too. Concrete has high compressive strength but doesn't have much tensile strength; to overcome these drawbacks tmt steel bars are provided in the concrete to increase its tensile strength. These steel bars create a strong bond with concrete and protect from any kind of damages. In Thermo-mechanical treatment iron rods are rolled in the rolling stand mill and passed through the water cooling system, which makes them harder from the outer layer and the inner layer is kept soft. So, with the tensile strength, these tmt steel bars also have great toughness and this treatment also improves the properties such as yield strength and corrosion resistivity. Due to tensile strength, the steel bars can perform great in the time of the earthquake. These bars have great elongation value that also improves the safety of the structure by improving ductility and bendability. So, it is very important to choose good quality iron rods for construction to make sure the safety and longevity of the structure.
Then what one should look at while purchasing any TMT bar?
1) Check the diameter of rods properly.
2) These tmt steel bars come in different grades such as Fe415, Fe415D, Fe500, Fe500D, Fe550, Fe550D and Fe600. So, first, you have to decide which grade is suitable for your construction and check properly the seller is giving you the same or not. It is very important because it ensures the strength of the structure.
3) Then it is very important to check the iron rods are corrosion resistant or not. Corrosion can create a serious issue and decrease the overall quality of the structure.
4) After that check the elongation of rods. These should have a superior elongation ratio. This property of tmt steel bars prevent damages and makes the structure safe from earthquakes.
5) Rods should have high bending property. It helps fulfill different design requirements of the construction.
6) The iron rods should have high strength. Mainly the manufacturing process decides the strength of the rods. In the process that is called Thermo-mechanical treatment, that makes the rods harder from the outside and ensures great strength.
7) Ask for "Test Certificate" from the seller, where you can get the whole chemical analysis of materials and all the mechanical properties too.
8) Always you should go for popular brands and check the branding of the iron rods properly. There are so many big brands in the market like SAIL, TATA, RINL, etc.
9) Another important thing is weight, take 12 pieces full-length tmt steel bars, check the weight of those bars and calculate with the total weight.
If we keep in mind these above-mentioned points, we can ensure the best possible rods for our construction.