Selecting the best quality TMT bars from all the available brands is essential. The TMT bars are a key component in construction projects which can create a construction to be robust and sturdy. That is why engineers cannot afford to compromise on the quality of TMT bars while procuring them for construction. But what are the key processes to be followed to choose the best quality TMT bars from all the available brands and alternatives? Which key aspects should be valued more over other characteristics of TMT bars? This article delves into finding answers to these questions to support engineers in making the right decision. Continue reading to know how to judge a leading TMT bar producer.
What are TMT Bars?
TMT bars are thermo-mechanically treated bars. It is processed through three key stages. These stages are discussed below.
Converting Iron Ore into Molten Iron
The core iron, coal, and fluxes in stage one are collected from their respective locations and stacked. These materials are blended and reclaimed in the required proportion. The mixture is beneficiated to increase its iron content while the iron ore fines are agglomerated to form pellets and sinter. This conglomerated material is heated in the blast furnace to find the molten iron and stack it for the next process.
Conventing Molten Iron into Steel
In this stage, the molten iron is heated in a basic oxygen furnace, where oxygen is injected into the heated system. The process transforms molten iron into steel. The high heat under the influence of oxygen reduces the carbon content present in the material. The steel is then subjected to a ladle furnace to degasify the material from various inert gasses, sulfur, and phosphorous. The resultant material is then put into a casting machine to form billets.
Hot Rolling and Thermo Mechanical Treatment
In stage three, the billets are processed in three sub-stages: quenching, self-tempering, and atmospheric cooling. When the hot rolled rebars enter in quenching process, the system quenches the rebars in different types of heat treatments and cooling processes. The drastic changes in temperature in the heating and cooling process enhance the heat absorption strength of the TMT bars. After this stage, the bars undergo a self-tempering process where the hot inner core disperses heat to the outer layer, which develops a martensite outer layer and austenitic inner core. Post the self-tempering process, the bars are put in a special cooling bed where the austenitic inner core transforms into a ductile ferrite-pearlite structure.
This way leading TMT bars producers in Assam develop high-quality TMT bars. Across the different stages of development, the leading TMT bars producers such as Maan Shakti try to maintain the benchmarks of the IS:1786 standard to ensure superior quality of bars.
The Key Qualities You Need to Consider to Choose TMT Bars
Many TMT bar manufacturers produce TMT bars. How do they differ from others? The difference between different TMT bars lies in the manufacturing process. Some TMT bars manufacturers closely adhere to the ISO standard, and some do not. The amplitude of tensile stress, yield stress, and elongation ratio make the difference among different types of TMT bars. When buying the best quality TMT bars, you must consider the aspects mentioned below to ensure that you invest in the right quality for construction purposes.
The Process of Manufacturing TMT Bars
As discussed above, the leading TMT bar producers follow three key stages of the manufacturing process. These are transforming core iron into molten iron, transforming motel iron into steel, and transforming steel into ductile TMT bars. However, during this process, the challenge lies in adhering to the schedule, temperature limit, time limit, chemical manipulation, and many other factors that change TMT bars’ resultant quality.
Many TMT bars produced can often become of poor quality if the manufacturing process is not administered accordingly. That is why you must be assured that the TMT bars you would procure are produced using the right manufacturing process. You can be assured of this aspect by checking the certification documents of TMT bars. The leading TMT bar producer in Assam, Maan Shakti, manufactures TMT bars based on the IS:1786 standard. It follows all the minimum and maximum criteria specified in the process while producing different grades of TMT bars.
How Much Ductile is the TMT Bar
The ductility of the TMT bar refers to its ability to sustain deformation under tensile stress. The TMT bars are both ductile and flexible. It helps to withstand high pressure. Today, the developing multi-storeyed buildings, elongated bridges, strong dams, and many other constructions require developing a structure that can sustain seismic pressure, deformation, and other influences that make it challenging to hold the structure. Therefore, you must check the degree of ductility in superior-quality steel TMT bars. If you are satisfied with the quality, then only you must buy the product.
Does The TMT Bar have Rib Structure?
The TMT bars you want to buy must have repetitive rib formation in the outer layer. The rib structure helps to form solid bonding with the concrete. It is important to offer sturdiness to the structure. The leading TMT bars producer in Assam, Maan Shakti, produces TMT bars with repetitive rib stricture in the outer layer of TMT bars. The angular rib equally spread across the surface is important to ensure better anchorage between concrete and steel. This rib structure is the key differentiator between ordinary steel bars and TMT steel bars. If you want to procure the best quality TMT bars, the bars must have rib formation in the outer layer.
Is the TMT bar Flexible
Before buying the TMT bars, you must check if they are flexible enough. Flexibility is a key quality of the TMT bars, which enhances the bar’s usability. Owing to its flexibility, the bar can expand and contract within the required limit under the influence of seismic pressure. The flexibility of the bar helps it withstand high pressure. The advanced quenching method hardens the outer layer while keeping the inner core softer. This makes the bars flexible. This high flexibility of the bars is a true indicator of the good quality of TMT bars.
Do the TMT Bars have a High Degree of Weldability
Heating the TMT bars in high temperatures in an oxygen blast furnace reduces the carbon content in the bar. It also reduces the presence of various impurities to offer the bars a high degree of weldability. Excellent weldability omits the need for pre and post-welding treatment. This process helps engineers create the skeleton of modern infrastructures without hassle.
Do the TMT Bars have Corrosion Resistance Properties
While procuring TMT bars from leading TMT bars producers, you should not overlook identifying if the TMT bars have corrosion-resistant properties. If the TMT bars are not corrosion-resistant like ordinary steel bars, they will develop rust and decay after a few years due to the impact of humidity, high heat, and other reasons. But you should not be worried. The corrosion-resistant property is a key aspect of TMT bars for which engineers prefer to choose the bars over any ordinary steel bars.
Is The TMT Bar Seismic Resistant
The leading TMT bar producers mark the grade of TMT bars with “S,” which has high seismic resistance. The high TS/YS ratio indicates TMT bars’ superior seismic resistance properties. You can identify if the TMT bars offered by the leading TMT bars producer in Assam, Maan Shakti, have high seismic resistance ability by checking their ISO certification. Otherwise, if the TMT bar is flexible and does not deform under high tensile stress, you should buy the TMT bars.
The ductile inner core of the TMT bars ensures that it will be able to withstand seismic pressure. The seismic wave is absorbed in the soft inner core and expands the bars along its length. This way, the seismic waves disperse across the length of TMT bars. The superior quality steel TMT bars must have the seismic resistance ability if it was made following all the parameters per ISO standard during the manufacturing process.
Is It Cost-Effective to Purchase the TMT Bar
Cost-effectiveness is another key criterion when choosing the best TMT bars from leading TMT bars producers. The engineers require to buy large-scale TMT bars to support the construction needs. Therefore, a minimum variation in the price of TMT bars can considerably impact the overall cost of the projects. That is why the leading TMT bars producer in Assam, Maan Shakti, offers different grades of TMT bars at affordable prices. You can make your project economically feasible by sourcing TMT bars from Maan Shakti.
Step-By-Step Guide to Choose the Best Quality TMT Bar
While choosing the best quality TMT bars, you must follow a step-by-step process. If you visit any supplier of leading TMT bars producers in Assam without the necessary information about your requirements, it will be difficult for you to get the right product. To ensure that the construction project becomes successful in terms of quality, economy, and operation, you must adhere to the following processes to make better decisions in choosing the best quality TMT bars.
Identify Your Key Requirements
What are the key requirements for the construction project? Will it be constructed in a humid area? Or will it be constructed in an earthquake-prone area? For each of these requirements, you must choose different TMT bars grades. If the TMT bars are required for constructing multi-storeyed buildings, the requirement will drastically differ from when it is required for constructing a bridge or dam. Therefore, you must identify the requirements of TMT bars in terms of yield strength, tensile strength, ductility, seismic resistance, and flexibility before purchasing the bars from leading TMT bars producers. It will help you get the right product at an affordable price.
Choose the Right Grade
Leading TMT bar producers offer four different grades of TMT bars. These are Fe-415, Fe-500, Fe-550 and Fe-600. The superior quality steel TMT bars are available in different other sub-grades. You must choose the right grade of TMT bars based on your requirements. The Fe-415 grade TMT bars are effective for small-scale residential projects. Fe-500 and Fe-550, grade TMT bars, are effective for construction in earthquake-prone or humid areas. Mostly these grades are required for large-scale residential projects, bridges, and other constructions. Fe-600 grade TMT bars are a perfect fit for industrial projects such as dams, bridges, railways, and other construction projects.
Explore Different Brands Available
In the process of choosing the best TMT bars, you must identify the prospective suppliers of the product. In the steel rebar industry, various leading TMT bar producers operate successfully. Different brands offer similar TMT bars at different prices and varieties. If you want to procure TMT bars from leading TMT bars producers in Assam, Maan Shakti is the best brand to choose from. The best way to choose the right brand is by collecting all the necessary information related to product details, such as price, grade, quantity, quality, and others. Then compare the information to choose the best brand that fulfills the construction project requirements.
Choose the Right Properties
While selecting the best TMT bars for your construction project, you must evaluate the chemical content, characteristics, benchmarks, and other aspects that depict their quality. The bendability and ductility can easily be checked after putting the TMT bars under tensile stress. The yield strength, tensile strength, and elongation ratio of the TMT bars offered by leading TMT bars producers can be verified by contacting the producers. If you procure TMT bars from a leading producer in Assam, you can visit the factory location to confirm their superior quality.
Identify if the Product is Certified
The proper certification of the superior quality steel TMT bars attests to its supremacy. That is why we suggest not choosing any TMT bar products which fail to show ISO certification. The leading TMT bars producer in Assam, Maan Shakti, follows the IS:1786 standard while producing different grades of TMT bars. The company minutely adheres to the minimum and maximum benchmark per the IS:1786 standard to ensure that the product contains all the key qualities.
Benefits You Can Get from Maan Shakti
If you buy TMT bars from Maan Shakti, you can avail following benefits for your construction project.
- The TMT bars offered by Maan Shakti are ISO certified.
- You can verify the product details by communicating with the administrative department of Maan Shakti.
- The different grades of TMT bars are offered at an affordable price.
- Maan Shakti offers four grades of TMT bars such as Fe-415, Fe-500, Fe-550, and Fe-600. These grades are available in different sub-variants.
- The products of Maan Shakti are offered after comprehensive tensile testing, yield strength testing, bendability testing, and chemical analysis.
Considering all these aspects are a prerequisite for choosing superior quality steel TMT bars. Therefore, collect all the necessary information from reputed sources, visit producer facilities, understand key construction requirements, and assess product quality to ensure that you buy the right product. Although finding low-priced TMT bars in the market is not difficult, you should not devalue the quality. The key aim should be to make the construction strong, sustainable, and effective so that it requires limited maintenance and no further investment.
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