TMT bars are extensively used in different kinds of civil construction projects, therefore they form the cornerstone of modern city life. They are used for making building, beams, slabs, columns and also other kind of structures that bear the live load of people as well as their belongings. Being the core strength of all kinds of structures, the TMT bars are needed to be capable of withstanding large loads.
What are TMT bars and what are the different types?
TMT bars are extensively used in different kinds of civil construction projects, therefore they form the
cornerstone of modern city life. They are used for making building, beams, slabs, columns and also other
kind of structures that bear the live load of people as well as their belongings. Being the core strength of
all kinds of structures, the TMT bars are needed to be capable of withstanding large loads. They should
also be able to offer protection to a structure against earthquake and windstorms. Poor quality
materials like cheap steel bars generally contain very high levels of different unknown elements that can
be quite harmful for construction. In other words, these steel bars lack the requisite physical and
chemical properties that would make them appropriate building materials.
In order to meet up to the advanced load handling requirements of modern steel bars, special methods
are used to create products that are referred to as TMT bars. TMT bars are prepared by using a unique
metallurgical process called “Thermo Mechanical Treatment”. The TMT bars are technically approved by
Bureau of Indian Standards which makes them suitable for construction and building projects. The Fe
500D and Fe 500 are certain better quality TMT steel bars which can be purchased from the market
today. Most of the current building projects in India are carried out by the Fe 500D and Fe 500 TMT Bars
as they can offer enhanced protection against earthquake and other types of natural disasters.
In the TMT bar types Fe 500 and Fe 500D, the 500 denotes minimum yield stress, the term Fe indicates
iron and D shows that the bars come with higher properties of ductility. The TMT steel bars have low
percentages of phosphorus and sulfur which are quite harmful for steel specimens meant to be used in
construction. Higher phosphorus can cause “Cold Shortness” that makes the steel brittle under very cold
conditions which can lead to cracking. Higher sulfur content can lead to “Hot Shortness” that lowers the
melting point of the steel, thus leading to eventual failure under very high temperature conditions. The
overall carbon percentage is also kept low in these bars for improving the weldability and ductility of
Steel manufacturing companies in India craft these bars under heavily regulated manufacturing process
that makes them quite easily bendable. The TMT Saria steel bars share a special connection with
concrete which is used for all building projects. Concrete is characterized by great compressive power
along with rather low ductility and tensile strength. Thus when it combines or fuses with the TMT steel
bars; concrete gives rise to highly tensile and ductile end results. Every Primary Producer of Steel in India
regularly manufactures Fe500D and Fe500 TMT bars, and while the tensile strength stays the same for
both these types of TMT bars, the Fe500D variant comes with higher ductility. Ductility describes the
ability of a material to easily deform and adapt as it is put under stress with tensile load within a