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What is the main difference between Fe 415 and Fe 500 steel?

Choosing and selecting what is appropriate for various constructions is always the finest option for everyone. Grade Fe 500 is made using the same TMT method that produces Fe 415. So instead of following undoubtedly, find a workable pace better so one can select the right one for a development venture. Fe 415 and Fe 500 are the TMT bars made for the regular for a business structure. Fe 500 isn't anything but difficult to utilize when contrasted and Fe 415, Fe 500 is hard to weld and twist also. Fe 500 is having a protective layer might be harmed when twisted physically, this damaged protective coating can prompt costly fixes in the future as corrosion or rust can creep in. This additionally influences the operational lifetime of the TMT bar. At Steeloncall, everyone can get the best Fe 415 grade and Fe 500 TMT bars at affordable prices.

Fe 500 is superior to Fe 415 in terms of quality and strength. However, in terms of building constructions, Fe 500 has a high quality. Fe 415 is a superior decision as it is less expensive and can withstand tremors of impressive extents too. Fe 500 isn't fit for structures worked along with the seismic tremor inclined regions of India. Another issue that accompanies Fe 500 is weldability, it tends to be done however when contrasted with Fe 415. It is a costly procedure and the threat of rust and erosion likewise looms if the welding procedure isn't done appropriately. Welding can likewise decrease the general quality of TMT bars.

Yield Strength: Fe 415 has a yield strength of 415 N/sq.mm, while Fe 500 has a yield strength of 500 N/sq.mm.

Ultimate Tensile Strength: The minimum Ultimate Tensile Strength (UTS) is 485 N/mm2 for Fe 415 grade and that of Fe 500 is 545 N/mm2.

Elongation: The minimum Percentage Elongation for Fe 415 is 14.5% and that of Fe 500 is 12%.

The reinforcement steel bars utilized in Reinforced Cement Concrete (RCC) are assigned into grades as Fe 415 or Fe 500 relying upon their yield quality. Utilizing TMT bars of Fe 500 grade rather than Fe 415 grade prompts up to 20% investment funds on material along with these leading to a saving in the amount spent on purchasing TMT bars. The distinction in the quality between Fe 500 and Fe 415 steel grades is 20%, Fe 500 being 20% stronger than Fe 415. The explanation behind is Fe 415 signifies that power of 415 N/sq.mm is required to deform the TMT bar, whereas Fe-500 denotes that a force of 500 N/sq.mm is required to deform the TMT bar. The difference in the strength/quality between Fe 415 and Fe 500 grades, therefore, is 20%. This gives Fe 500 a superior structural strength than Fe 415 and consequently lesser number of Fe 500 TMT bars are required to hold the structure as compared to Fe 415.

The mechanical and chemical properties of grade Fe 415 and Fe 500 are as follows:

Mechanical Properties

Grade Fe-415

Grade Fe-500

Yield strength

415 Mpa (min)

500 Mpa (min)

Tensile strength

1.25 times the yield strength

545 Mpa




Chemical Properties

Grade Fe-415

Grade Fe-500


0.25 Max

0.30 Max


0.045 Max

0.055 Max


0.045 Max

0.055 Max


0.085 Max

0.105 Max

Because of its higher uniform elongation, it tends to be utilized in RCC constructions in corrosion as well as the earthquake-prone zone. The high corrosion resistance, brilliant bendability and extraordinary resistance on dynamic loading of Fe 500 are utilized in RCC developments in building structures, bridges and other structures. Most steel rebars available in India today and especially at Steeloncall with best prices are of Fe 415 and Fe 500 steel grades. The increase from Fe 415 to Fe 500 methods improvement in quality and the ensuing decrease in utilization of steel, by about 16%.

Fe 415 and higher quality grades like Fe 500. Both are suitable for use in seismic zones. In any case, for all intents and purposes, it is demonstrated that Fe 415 TMT bars have the correct blend of tensile strength and ductility that is proper for structures in areas under seismic zones. The building may need to confront dynamic and seismic burdens, during their lifetime.

The ductility of Fe 415 steel bars empowers them to beat such loads. But in the case of TMT grades like Fe 500, it is hard to accomplish and keep up the yield quality and ductility through the TMT process alone. Besides we need to have certain microalloying precipitation solidifying components. The equalization of both QST and small scale alloying process is critical. Any extreme imbalance in both can prompt sacrifices on the fundamental properties like yield strength and ductility.

05 Feb, 2020

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