550D or Fe 550D TMT is a grade of thermo mechanically treated steel bars as defined by IS: 1786. ‘Fe’ is the symbol of iron, and D stands for ductility. 550 N/mm^2 is the minimum yield stress in MPA required to bring about an elongation, i.e., the maximum strength of the steel bars. This means that Fe 550D TMT steel bars from top rated TMT steel bar manufacturers have a high tensile strength. The bendability or flexibility of the TMT steel bars prevents cracks or fractures and improves workmanship (ease of construction in sites.)
Structures that need Fe 550D TMT are those bearing heavy loads. Dams, railway bridges, stadiums, flyovers, skyscrapers, airports, hospitals, and tunnels are a few constructions that can benefit from using 55D TMT bars due to their high strength and flexibility.
Why 550D TMT Steel Bars?
Fe 550D TMT steel bars are characterized by high strength and ductility. Thus, the use of these bars is more prevalent in areas with high seismic activities. In the event of a quake, these bars bend a little and come back to their original configuration when the force is removed. Apart from that, the lower Carbon, Sulphur, and Phosphorus percentages in Fe 550D TMT by the leading manufacturers of TMT bars help preserve the steel and resist seismic shocks.
Apart from the composition, the manufacturing process also imparts the characteristics that these steel bars are famous for. The thermomechanical process creates bars that have a hard outer shield that imparts strength, whereas the soft inner core provides the necessary flexibility to the bars to make them efficient in withstanding the effects of a quake.
Difference Between Fe 550 and Fe 550D TMT
Constructions are important, and they must be built to be strong, resilient, and withstand the effects of seismic activities and other environmental threats, such as temperature variations and natural disasters. What good is a construction if it falls down in a season?
To build constructions in a way that survives the test of time, the use of Fe 550 and Fe 550D TMT steel bars is becoming more popular nowadays. Between the two grades, the iron consumption in the 550D steel variant is less than 550 due to the mean minimum weight of the bars. The savings are about 4% -5% as per the Indian standards.
The letter D in 550D stands for ductility. To make bars that are ductile, some elements like carbon, phosphorus, and others are added as per the standards. Apart from making the TMT bars more ductile, these elements also make the bars less prone to corrosion. The Fe 55D TMT bars thus remain corrosion-free for years and withstand seismic tremors to a moderate degree. Thus, you can imagine how useful the 55D bars are for constructing high rises. Since they can withstand loads significantly better, they are the best choice in any location that has the possibility of unforeseen loads or frequent seismic activities.
The Best TMT Manufacturer in India
Maan Steel and Power Ltd (MSPL) manufactures the best Fe 550D TMT. All the TMT bars made by Maan Shakti go through stringent quality control measures to make sure they meet the industry standards rigorously. The raw materials are of high quality, and only the finest equipment is used to build the final product. Maan Shakti TMT has been in the manufacturing business for years now and is dedicated to producing the finest quality TMT bars. The motto of Maan Shakti is to strengthen the country, and for that, we believe that more sturdy and robust constructions need to be erected.
Keeping this motto in mind, the state-of-the-art manufacturing facilities of Maan Steel and Power Ltd. are dedicated to producing TMT bars that stand strong in the face of diversities, and Fe 550D TMT by Maan Shakti is the epitome of strength and reliability, which are the qualities needed in TMT bars to make constructions stand the test of time.
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