CRS

CRS TMT Bars

CRS [Corrosion Resistant Steel] TMT Bars are made from various corrosion resistance elements such as copper, chromium and phosphorus. The high corrosion-resistant feature in the CRS TMT Bars will be suitable for all the construction projects such as bridges, large dams and mainly they can be used for construction in the coastal areas. CRS Bars will allow the building to resist the corrosion and increases the longevity of the building structure and also it is a cost-effective solution for corrosion. An added advantage is that the CRS TMT Bar can be bent and re-bent around very small mandrels. It will reduce the rate of corrosion at the early stage of building construction, which makes the building stronger and resist it from earthquakes. AMMAN-TRY CRS TMT Bars reduces the cost of repairs that are caused due to corrosive damage.

Process

CRS (Corrosion Resistance Steel) bars manufactured by an addition of Copper and Chromium to prevent from the rust and corrosion. Copper will plug the pores in the rust. By adding Chromium (Cr) into steel, increase the passivity of anions. Another advantage is we are making the steel slightly ferrite thus pitting resistance is increased. Chromium also increases the passivity and will form an invisible layer.

Phosphorous acts as inhibitor. This will reduce the anodic reaction. These CRS bars are manufactured through the TMT procedure.

Advantages

Corrosion resistant

suited for salty & seashore area

Earthquake Resistance

Guarantee

Economical

Size Length Grade
06mm, 08mm, 10mm, 12mm, 16mm, 20mm & 25mm Normal Length: 40 feet, Specific Length: 2 feet – 80 feet. Fe500D
Chemical Composition
Elements Min % Max %
Carbon 0.15 0.18
Manganese 0.45 0.60
Sulphur 0.030 0.045
Phosphorus 0.030 0.055
Chromium 0.15 0.25
Copper 0.30 0.35
Silicon 0.15 0.25
Mechanical Properties
Property IS 1786 (2008) Fe500D
Yeild / 0.2% Proof Strenght (min) 500 N/mm2
Ultimate Tensile Strenght Minimum 8% above measured yield / proof strength, however not less than 545 N/mm
Elongation 12.0% min
Bend Test Satisfies bend test around a mandrel (thro 180o</sup) of 4d for dia upto and including 20mm and 5d for overr 20mm dia.
Re Bend Test Satisfies Rebend test around a mandrel of 5d for dia upto and including 10mm and 7d for over 10mm dia through 45o bend and 22.5o reverse bend.
Section Weight
ISI
Section Min Wt. (Kg / Mtr.) Normal Wt. (Kg / Mtr.) Max Wt. (Kg / Mtr.)
06 mm 0.206 0.222 0.238
08 mm 0.367 0.395 0.423
10 mm 0.574 0.617 0.660
12 mm 0.843 0.888 0.932
16 mm 1.500 1.579 1.658
20 mm 2.393 2.467 2.541
25 mm 3.793 3.855 3.971

FAQs

What exactly are corrosion-resistant steel TMT bars?

CRS TMT bars are corrosion resistant & perfect to use in projects that will be carried out in corrosive, chemical, or salty environments.

How do Corrosion Resistant TMT bars are different from Traditional TMT bars?

The additional protective layer or coating on Corrosion Resistant TMT Bars increases their resistance to corrosion. Compared to normal TMT Bars, this additional layer provides improved durability by preventing rusting even in severe environmental conditions.

Where are Corrosion Resistant TMT Bars used frequently?

CRS TMT bars are often found in construction projects close to the shore, in fields where chemicals are widely used, and in buildings like bridges, dams, ports, and other infrastructure exposed to harsh weather conditions.

What effect does a structure's durability have on the corrosion resistance of these bars?

Building's lifespans are greatly increased by the improved corrosion resistance. The risk of corrosion-related deterioration is significantly decreased by using CRS TMT Bars, ensuring the durability and safety of the structure.

How can I ensure the Corrosion Resistant TMT Bars quality for my project?

It's important to purchase these bars from reliable and licensed vendors or suppliers like AMMA-TRY. Also, look for accreditations from organizations like ISI, BIS & so.

Testimonials


We are served by AMMAN-TRY for more than 15+ years. They deliver products timely and with agreed quality.


M Karuppiah & Co, Pudukottai
Mr. K. Ravindran

Products were of exceling quality. Prices were affordable, thus making a beneficial business relationship with AMMAN-TRY. We look forward to get their continued services in the forthcoming years.


SAT Sanmuga Nadar Firm, Thiruthuraipoondi
Mr. J. Dhinakaran