A+ All The Way
TRIAM A+ is no ordinary TMT bar. With the finest manufacturing process, quality inspections at every stage, and a scientifically time-tested rib pattern for better bonding and tolerance distribution, TRIAM A+ is the ultimate star among bars.
  Product Specifications
Every time you hold an ISI certified TRIAM A+ new-age construction rebar in your hand, you feel the presence of the unmatched A+ quality in every square inch of metal.
  • TMT BARS / De-Formed Bars (Grade 550D ): 8, 10, 12, 16, 20, 25 MM Dia.
  • Close Spiral Ribs.
  • CRS Grade TMT Bar.
View Application

  Product Properties

A+ Physical Properties

TRIAM A+ FE 550, the new-age construction rebars, achieve a unique combination of strength and ductility through the superlative manufacturing process. Due to its low carbon content, TRIAM A+ FE 550D has increased ductility at butt and weld joints with maintained strength. The higher ductility facilitates the distribution of loads in well-designed statically indeterminate structures and structures that are prone to earthquakes.

TRIAM A+ FE 550D far exceeds the minimum limit speci­fied in the standard IS:1786 and further conforms to ISO:9001, 14001 & OHSAS 45001 quality standards. In the case of the yield strength for TRIAM A+ FE 550D, the standard speci­fication stipulates a minimum of 550 N/mm². For the same product, the typical value of ductility as measured by elongation is 17% minimum as against the standard value of 14.5% minimum. Undoubtedly, the superior indices of strength and ductility are a guarantee of higher levels of safety for ages. UTS/YS ratio and percentage elongation are important properties in rebars that reflect the ability to handle the pressure of earthquakes.

A+ Chemical Properties

TRIAM A+ new-age rebars conform to Fe 550D, IS:1786 speci­fication. Their carbon levels are lower than the specifi­cations, which result in its excellent ductility, high bending capability, better corrosion resistance and a superior welding strength.

Application
TRIAM A+ FE 550D new-age rebars are available for both, residential and project applications. The residential segment is catered through the company's extensive dealer/distributor network and you may contact any of our sales offices or distributors for details of the authorised dealer closest to you. For project applications, you are requested to get in touch with any of our sales offices.

TRIAM A+ can be widely used in:

  • Office Buildings
  • Residential Complexes
  • Warehouse
  • Schools
  • Dams
  • Power Plants
  • Iconic Super-Structures
USP BENEFIT
100% Tested Billets Results in controlled chemical composition of the TMT
Control on Sulphur & Phosphorus Leads to a better corrosion control
Conversion agent of SAIL Ensures premium quality of products
Flexibility is higher than the normal elongation percentage prescribed in BIS 1786:2008 Safeguards from earthquake and other such natural calamities
Greater AR (Area of Rib) value Assures a good bonding between steel and concrete
Easy bending and rebending Results in enhanced productivity of the masons

  Dimensional Tolerance

TRIAM A+ FE 550D is gifted with sectional weight lower than the normal value. Yet it is guaranteed not to be more than 2-4% of IS:1786. This ensures higher meterage per unit weight for TRIAM A+ FE 550D compared to ordinary rebars.

  Seismic Resistance

Several studies were conducted on concrete beam column joints reinforced with TRIAM A+ FE 550D to evaluate its performance under repeated reversed loading with large deformations as would be encountered during an earthquake. The energy dissipation was found to be almost the same for each cycle, indicating uniformly maintained ductility and superior seismic resistance properties.

  Corrosion Resistance

TRIAM A+ FE 550D is produced using Thermax Technology from HSE, Germany. Therefore, there are no torsional residual stresses in the rebar, which results in superior corrosion resistance characteristics compared to traditional cold twisted bars. On account of its composite and uniform microstructure, these new-age TMT rebars have comparatively better corrosion resistant properties compared to other TMT bars, while being embedded in concrete.

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Application
Size (MM) Specified wt. (kg/m) Allowable Tolerance %
8 0.395 ± 7
10 0.617 ± 7
12 0.888 ± 5
16 1.578 ± 5
20 2.470 ± 3
25 3.850 ± 3

Physical Properties
Physical Properties IS 1786 Fe 550D TRIAM A+ Fe 550D
0.2% Proof Stress : N/mm2 (Min) 550 550
Tensile Strength : N/mm2 (Min) 600 600+
Elongation of Max. Force (%) 14.4 17
Bend 4D-5D 3D-4D
Rebend 6D-7D 5D-6D

Chemical Properties
Chemical Properties IS 1786 Fe 550D TRIAM A+ Fe 550D
Carbon (%) Max 0.25 0.20
Sulphur (%) Max 0.04 0.045
Phosphorous (%) Max 0.04 0.045
Sulphur & Phosphorus (%) Max 0.075 0.075
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