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ARS 550D CRS

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Join the Corrosion Resistance movement. ARS 550D CRS is here!

It is here. A TMT Bar that retains its ductility while being corrosion and earthquake resistant. All thanks to the micro alloys, Copper, Chromium, Nickel and Molybdenum, added to the steel at optimal quantities.

  • ARS 550D CRS can increase the life of any structure. It is much more imperative under certain specific conditions.
  • 550D CRS is Highly recommended if the salt content in the ground water is >300 ppm.
  • Seaside structures – Reduces the diffusion of chloride ions in TMT Bars on TMT bars.
  • Super structures of all type of the buildings since it reduces corrosion related problems.

Features that make ARS 550D CRS unique

  • Highest Corrosion Resistance CRE -0.5% Min
  • High Earthquake Resistance – Ductility 16 to 18%
  • High Strength/Grade 560 N/mm2 to 600 N/mm2
  • Highest Bonding with concrete – innovative angular lugs
  • Increases the life/durability of building by 3 times
  • Higher fire resistance – FRE – 0.18

True benefits of ARS 550D CRS

  • Higher Corrosion Resistant Equivalent (CRE), average 0.5 % (20% higher than the IS 1786- 2008).
  • Highest resistance to FIRE as the micro alloys increase the Fire resistance equivalent.
  • Reduced rate of corrosion of steel during and after the construction increases the life of the structure.
  • Increases the life of the structure by 3 times (with optimal construction practices).

Specifications that ensure truly strong structures!

Physical Properties

Properties Unit IS 1786 - Fe 550D ARS 550D ARS 550D CRS
Yield Strength N/mm^2 550 Min. 550 Min. 560 Min.
Tensile Strength N/mm^2 600 Min. 600 Min. 620 Min.
TS/YS Ratio 1.08 Min. 1.1 Min. 1.08 Min.
Elongation % 14.5 Min. 16 Min. 16 Min.
Properties Unit IS:1786 Fe-550D ARS 550D CRS 550D
C % 0.25 Max. 0.25 Max. 0.25 Max.
S % 0.04 Max. 0.04 Max. 0.04 Max.
P % 0.04 Max. 0.04 Max. 0.04 Max.
S+P % 0.075 Max. 0.075 Max. 0.075 Max.
CE % 0.42 Max. 0.42 Max. -
CRE (Cr+Cu+P+Mo+Ni) % - - 0.45 Min.

Frequently Asked Questions

What is corrosion resistant steel?

Corrosion-resistant steel is a type of steel alloy that provides superior corrosion protection compared to regular carbon steel.

CRS Steel is steel designed with specific alloys for corrosion resistant properties.

Yes, ARS TMT bars are corrosion resistant, they provide a high corrosion resistance CRE of -0.5% Min increasing the life/durability of building.

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