FE 500D vs FE 550D TMT Bar: Which Is Better for Construction?

FE 500D vs FE 550D TMT Bar: Which Is Better for Construction?
TMT Bars
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29 Jan 2026
Every decision is important when one works on a structure that is supposed to last for decades, and within that endurance lies the steel forming its core. Do you strive for the highest safety and durability, or are standard levels enough?
Enter the two titans of construction reinforcement, FE 500D and FE 550D TMT bars. The question is, which one among these deserves the spotlight? As one of the leading TMT manufacturers in India, SRMB Steel brings confidence to every project.
Let's look at which bar is really revolutionary for your next build.
Understanding FE 500D and FE 550D TMT Bars
For the majority of residential and commercial projects, FE 500D TMT bars are a dependable option because of their consistent strength and ductility. That is the reason fe 500D considered one of the best TMT bars in Kolkata.
Meanwhile, 550D TMT bar manufacturers take reinforcement to the next level. SRMB Steel's 55D bars are designed to offer outstanding concrete bonding, tensile strength, and earthquake resistance. These are produced using the state-of-the-art TEMPCORE process and patented WinGrip technology.
| Feature | FE 500D | FE 550D |
|---|---|---|
| Yield Strength | 500 N/mm² | 550 N/mm² |
| Ductility | Moderate | High |
| Concrete Bonding | Standard | Excellent (WinGrip Technology) |
| Earthquake Resistance | Good | Superior |
| Applications | Low to medium-rise buildings | High-rise, commercial, and critical infrastructure |
| Availability | Offered by most TMT manufacturers in India | SRMB Steel, leading 550D TMT bar manufacturer |
| Price | Moderate | Competitive 550D TMT price without compromising quality (₹76.50 – ₹75.60) |
Why Builders Prefer SRMB FE 550D TMT Bars for Safer Construction
Patented WinGrip Technology
As a reliable 550D TMT bar manufacturer, we don't just provide any TMT Bars; we offer bars that are engineered with WinGrip technology. That means, in practical applications, the structure can bear loads that are heavier, thereby reducing bending and maintaining stability over several years. This is of paramount importance to critical infrastructure and high-rise buildings where every structural joint counts.
TEMPCORE Production Process
Our bars are manufactured through TEMPCORE technology, a thermal hardening process that is licensed to us from Belgium. This helps them have a tough and ductile inner structure and a hard outer covering. This enables the TMT bars to show a little bending before they fracture when subjected to tension. This aspect helps these bars withstand earthquakes.
Earthquake-Resistant Performance
The FE 550D TMT bars are designed to bend rather than break. The result of their high tensile strength and ductility makes it possible for buildings to better absorb shocks inherent in earthquakes. TMT bars are thus beneficial for making safer living areas, working areas, as well as better infrastructure in seismically prone areas. Therefore, if you are building a home in an earthquake-prone area like Kolkata, selecting the best TMT bars could literally save your life.
Trusted by Builders Across India
As one of the leading TMT manufacturers in India, SRMB Steel has earned the trust of builders nationwide. From residential apartments in Kolkata to commercial high-rises in other metros, our 550D bars have been used in projects requiring reliability, uniform quality, and structural strength. Longevity and brand credibility make a big difference in construction planning.
Competitive 550D TMT Price
As a trusted 550D TMT bar manufacturer, we provide bars that are competitively priced despite their superior quality. It is a wise long-term investment because builders can obtain high-performance steel without going over budget. Real value is the result of lower maintenance, lower repair costs, and improved safety.
Which One Should You Choose?
FE 500D: These TMT bars can be used in small residential structures, as they impart adequate strength, ductility, and value for money.
FE 550D: For major projects, for instance high-rise buildings, core infrastructural work, and projects in seismic areas, these are a better choice. As the best TMT bars in Kolkata, these offer better bonding properties, higher tensile strengths, and superior ductility to make a stronger and safer structure.
As the top 550D TMT bars manufacturer, we offer TMT Bars that are more than just rods. It is more akin to an investment in long-term peace of mind, strength, and safety supported by 70+ years of experience. These provide an extra degree of future-proof security.
When Strength Matters, Choose SRMB FE 550D
In the discussion of FE 500D vs. FE 550D TMT bar, FE 550D stands out with strength, reliability, and long-lasting performance. Made to precision with WinGrip technology and through the TEMPCORE process, these bars are built to ensure your projects stand the test of timeWhether you are searching for a reliable 550D TMT bar manufacturer or looking for 550D TMT price, SRMB Steel is your partner in constructing stronger and safer structures.
Whether you are searching for a reliable 550D TMT bar manufacturer or looking for 550D TMT price, SRMB Steel is your partner in constructing stronger and safer structures.
Don’t just construct, build with confidence.
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FAQs
SRMB's Fe 550D TMT bars are thought to be the best for home-related construction due to their high ductility, tensile strength, durability, and resistance to corrosion and earthquakes. Its unique wingrip tech and tempcore manufacturing process make your home a safe abode for years to come.
550D TMT bars are a high-strength steel option with a base strength of 550 MPa. Thus, "D" stands for ductility-a quality that gives the bar its ability to bend and absorb energy before it fails, combining strength with flexibility and durability.
The general trend is that the FE 500D is cheaper than the 550D. In the case of 550D TMT bars, the price is supposed to vary from 75.60 to 76.50 per piece, depending on the size from 8 mm to 20 mm.





















