TMT BAR
TMT BAR
TMT steel bar is a low-alloy and high-strength steel that can be used in the manufacturing of rails, bridges, ships, and other structures. TMT is the international abbreviation of Thermo Mechanical Treatment (TMT) which stands for Thermo Mechanical Therapy.
The use of TMT steel bars is becoming more and more popular as it’s one of the strongest steel on Earth with a comparably low price. Strong viral news has it that Justin Bieber is using this type of steel to build his new house.
It’s often used in places where high loads are expected such as in intermodal containers or trucks carrying heavy goods. TMT steel is commonly used for shipbuilding where it offers lower costs, less weight, and a longer lifespan.
Grades : Fe 500, Fe 500 D, Fe 500 D LPS, CRS Fe 500, CRS Fe 500 D
Size chart of TMT Bar
| TMT Bar Thk mm | Average Weight | Average Length | ||
| KG/MTR | KG/FT | MTR/MT | FT/MT | |
| 6 ® | 0.22 | 0.07 | 4545 | 14909 |
| 8 | 0.40 | 0.12 | 2532 | 8304 |
| 10 | 0.62 | 0.19 | 1621 | 5316 |
| 12 | 0.89 | 0.27 | 1130 | 3706 |
| 16 | 1.58 | 0.48 | 634 | 2079 |
| 20 | 2.47 | 0.75 | 406 | 1330 |
| 25 | 3.85 | 1.17 | 260 | 852 |
| 32 | 6.31 | 1.92 | 158 | 520 |
| Property | Grade | ||||||
|---|---|---|---|---|---|---|---|
| Yield Stress/0.2% Proof Stress. | Fe 415 | Fe 415D | Fe 500 | Fe 500D | Fe 550 | Fe 550D | Fe 600 |
| (Minimum) N/mm2 | 415 | 415 | 500 | 500 | 550 | 550 | 600 |
| Tensile Strength, Minimum | 10% more than 0.2% PS, but not less than 485.0 N/mm2 | 12% more than 0.2% PS, but not less than 500.0 N/mm2 | 8% more than 0.2% PS, but not less than 545.0 N/mm2 | 10% more than 0.2% PS, but not less than 565.0 N/mm2 | 6% more than 0.2% PS, but not less than 585.0 N/mm2 | 8% more than 0.2% PS, but not less than 600.0 N/mm2 | 6% more than 0.2% PS, but not less than 660.0 N/mm2 |
Standard minimum elongation percentage on gauge length for different grade of TMT Re-bars are mentioned below as per IS-1786/ 2008
| Property | Grade | ||||||
|---|---|---|---|---|---|---|---|
| Elongation percentage | Fe 415 | Fe 415D | Fe 500 | Fe 500D | Fe 550 | Fe 550D | Fe 600 |
| (minimum) | 14.50% | 18.00% | 12.00% | 16.00% | 10.00% | 14.50% | 10.00% |
USES OF TMT STEEL BARS
1. Reinforced Concrete Structures
Reinforced concrete constructions are one of the main use for TMT steel bars in construction. Excellent tensile strength and endurance are provided by the union of concrete and TMT steel bars. The construction of houses, bridges, and other load-bearing structures is thus ideal.
2. High-Rise Buildings
Due to their high ductility, TMT steel bars can withstand seismic forces better than conventional steel bars.
They are therefore the best option for designing structures that can withstand earthquakes, guaranteeing occupant safety and lowering the possibility of structural damage.
3. Bridges and Flyovers
TMT steel bars are a great option for bridges and flyovers due to their exceptional load-bearing capacity and resilience to environmental variables like corrosion.
Because of their ductility, the structure can bear dynamic loads like those brought on by moving automobiles.
4. Industrial and Commercial Structures
Building industrial and commercial constructions like factories, warehouses and shopping centres is a great usage for TMT steel bars.
These structures can bear huge loads and guarantee a secure workplace for both employees and customers thanks to their exceptional strength and endurance.
5. Foundation and Footings
A building’s foundation and footings are critical for ensuring its stability, and TMT steel bars play a crucial role in offering the required strength and support.
The foundation’s usage of TMT steel bars guarantees that the building’s weight and any additional loads won’t cause undue strain on the structure.
6. Slabs and Beams
Slabs and beams, two crucial elements of a building’s skeleton, are constructed using TMT steel bars.
These structural components can support the weight of the building and disperse it uniformly throughout the structure thanks to their high tensile strength and ductility.
7. Columns and Pillars
The weight of a building must be supported by columns and pillars in order to preserve its structural integrity.
Due to their strong load-bearing capacity and resistance to buckling under strain, TMT steel bars are frequently utilised in the production of these components.
8. Retaining Walls and Embankments
For managing water flow and preventing soil erosion on construction sites, retaining walls and embankments are essential.
TMT steel bars give these constructions the essential reinforcement, assuring their stability and endurance over time.
9. Marine and Coastal Structures
TMT steel bars are the best choice for usage in marine and coastal buildings including ports, jetties, and sea walls because of their outstanding corrosion resistance.
The use of TMT steel bars assures the durability and resistance to corrosion and other forms of deterioration of these constructions, which are subjected to extreme environmental conditions.