Steel
TMT bars or Thermo-Mechanically Treated bars are high-strength reinforcement bars having a tough outer core and a soft inner core. TMT steel can be described as a new-generation-high-strength steel having superior properties such as weldability, strength, ductility and bendability meeting highest quality standards at international level.


TMT Bars


Structural Steel

Features of TMT

  • Enhanced strength combined with high ductility
  • Excellent weldability without loss of strength at welded joints
  • Better ductility and malleability
  • Earthquake resistant
  • High thermal resistance
  • Significant savings in cost of steel

Types of TMT Bars

  • Fe -500 :

  • Fe 500 one of the TMT steel bars available today. “Fe” stands for Iron out of which the TMT bars are made. The figure “500” implies the minimum yield stress in N/mm^2.


  • Fe- 500D:

  • Fe 500D are one of the TMT steel bars available today. “Fe” stands for Iron out of which the TMT bars are made. The figure “500” implies the minimum yield stress in N/mm^2. The letter “D” in Fe 500D implies ductility which means that the steel bars have a higher percentage of elongation.


  • Fe-550:

  • Fe 550 are one of the best TMT steel bars available today. “Fe” stands for Iron out of which the TMT bars are made. The figure “550” implies the minimum yield stress in N/mm^2.


  • Fe-600:

  • Fe 600 are one of the best TMT steel bars available today. “Fe” stands for Iron out of which the TMT bars are made. The figure “600” implies the minimum yield stress in N/mm^2.


TMT Steel Sizes

TMT Steel Size ranges from 8mm, 10mm, 12mm, 16mm, 20mm, 25mm diametrically and spans 12 meters in length.

Specifications of TMT Bars

Difference Between TMT Bars
Mechanical Properties Fe 500 Fe 500 D Fe 550 Fe 600
Ultimate tensile Stress (N/mm^2) - UTS 545 565 585 660
UTS/YS Ratio 1.08 1.11 1.06 1.06
% Elongation 12 16 10 10
Chemical Properties
Carbon 0.3 0.25 0.3 0.3
Sulphur 0.55 0.4 0.055 0.055
Phosphorus 0.55 0.4 0.05 0.04
Sulphur & Phosphorus 0.105 0.075 0.1 0.075