TMT TECHNOLOGY
The TMT (Thermo Mechanical Treatment) process is a sophisticated and precise technology that has been developed after years of continuous research. each TMT Steel bar is made from the PLC controlled Continuous Linear Rolling Mill in adherence with the BIS quality standards and norms to ensure quality consistency. It is a special heat treatment process where the bar is subjected to three successive stages:
WhenQuenching - The hot rolled bar leaving the final mill stand is rapidly quenched by a special water spray system.
Self-Tempering – The hot core causes tempering of the outer martensitic layer into a structure called 'Tempered Martensite'. The core still remains austenitic at this stage.
Atmospheric Cooling - This takes place on the cooling bed where the austenitic core is transformed into a ductile ferrite-pearlite structure.
Corrosion-Resistant - Superior technology imparts higher corrosion resistance quality than other TMT steel bars in India.
Earthquake-Resistant -The inherent tensile strength and reinforcement delivers a much higher level of resistance to buildings to withstand seismic disruptions and aftershocks
Fire-Resistant -Manufactured with core qualities of thermal stability, the TMT bar offers maximum fire resistance
BIS SPECIFICATIONS FOR CHEMICAL PROPERTIES
| Chemical Properties | FE 600 BIS | CITKON TMT FE 600 {Typical Max Value} |
|---|---|---|
| Carbon % | 0.30 | 0.20 to 0.23 |
| Carbon Equivalent (CE%) | 0.40 | 0.306 |
| Sulphur 5.0% | 0.40 | 0.035 to 0.040 |
| Phosphorus (P) % | 0.40 | 0.070 to 0.100 |
| Sulphur & Phosphorus (S&P)% | 0.075 | 0.110 to 0.140 |
| Nitrogen (PPM) % | 0.012 | 0.0042 to 0.0050 |
| Manganese (MN0 % | 0.60 to 1.00 | 0.64 to 0.67 |
BIS SPECIFICATIONS FOR MECHANICAL PROPERTIES
| Mechanical Properties (Minimum) |
FE 600 BIS Standard | CITKON TMT FE 600 {Typical Max Value} |
|---|---|---|
| Yield Stress (-YS) (N/MM2) | 600 N/MM2 | 640 N/MM2 |
| Ultimate Tensile Stress (UTS) (N/MM2) | 660 N/MM2 | 720 N/MM2 |
| UTS/YS Ratio | 1.06 | 1.12 |
| Total Elongation | 10.00 | 16.00 |
BIS SPECIFICATIONS OF WEIGHT & SAVINGS WEIGHT OF CITKON TMT (WT. PER KG / MTR)
| Size | BIS Standard | CITKON TMT FE 600 |
|---|---|---|
| 8 MM | 0.367 to 0.422 | 0.367 to 0.380 |
| 10 MM | 0.574 to 0.660 | 0.574 to 0.590 |
| 12 MM | 0.844 to 0.932 | 0.844 to 0.866 |
| 16 MM | 1.500 to 1.658 | 1.500 to 1.570 |
| 20 MM | 2.396 to 2.544 | 2.396 to 2.440 |
| 25 MM | 3.734 to 3.965 | 3.734 to 3.846 |