Thermo Mechanically Treated (TMT) bars have revolutionised the industry with its superior quality as against the cold twisting process to manufacture the traditional reinforcement bars. The special heat treatment process ensures greater strength, excellent ductility, enhanced bendability and much superior weldability. The following properties of Vaishnav® Tempcore TMT are as follows:

CHEMICAL PROPERTIES
Grade
C%Max*
S%Max
P%Max
Mn%Min
Si%Max
Fe-415
0.30
.055
.055
.55
.35
Fe-500
0.30
.050
.050
.60
.30
Fe-550
0.25
.045
.045
.90
.30

MECHANICAL PROPERTIES
Properties
IS:1786/85
Gr Fe-415 (Min)
VAISHNAV ®Tempcore
Gr Fe-415 (RANGE)
IS:1786/85
Gr Fe-500(Min)
VAISHNAV ®Tempcore
Gr Fe-500 (RANGE)
0.2% Proof Stress
415 N/mm2
430 to 460 N/mm2
500 N/mm2
525 to 590 N/mm2
Ultimate Tensile Strength (U.T.S.)
485 N/mm2
490 to 570 N/mm2
545 N/mm2
580 to 650 N/mm2
Elongation %
14.5
16.0 to 24.0
12.0
16.0 to 20.0
Stress Ratio
1.10
1.15 to 1.25
1.09
1.10 to 1.22

BEND & REBEND PROPERTIES
Parameters
Size
IS:1786/85
Gr Fe-415
Vaishnav ®Tempcore
Gr Fc-415
IS:1786/85
Gr Fe-500
Vaishnav ®Tempcore
Gr Fc-500
Bend Test
Upto & Including 22 mm
3 d
2 d
4 d
2 d
Over 22mm Dia
4 d
3 d
5 d
3 d
ReBend Test
Upto & Including 10 mm Dia
5 d
4 d
5 d
4 d
Over 10mm Dia
7 d
4 d
7 d
4 d

Vaishnav® Tempcore Distinct Advantages:

  • Superior quality product and consistency
  • Superior Corrosion Resistant than other conventional Reinforcement Bars
  • Higher Reinforcement Bond strength due to distinct Bar Geometry
  • High ductility/ Bend ability with High yield strength
  • Resistant to thermal Ageing at high Temperature during fire etc
  • Guaranteed wield ability due to controlled carbon percentage