Hi
I am Rahul Welcome to my youtube channel Civil Notebook.
About this video-
Dosto is video me app logo ko batayunga fe500 vs fe500d which is better ke bare me.
Ummeed Hai Aapko Ye Video Bahut Pasand Aayegi.
TMT Rebar is the backbone for all type of construction.
TMT stands for ‘Thermo Mechanical Treatment’ that is also known as metallurgical process. These TMT Bars are manufactured under the IS (Indian Standards) Standards.
TMT bars are backbone of every civil construction deep rooted into foundation they bear the load of building, slabs, beams, columns and of course the live load of the people and their belongings. And as the strength of every structure,the TMT bars have to be ready to withstand the loads including windstorms and earthquake.
CHEMICAL STRUCTURE OF TMT BARS
In the Fe 500 & Fe 500D the term “Fe” denotes Iron,”500” stands for the minimum yield stress in N/mm2 and the letter “D” denotes that such bars have higher values of ductility . These bars have lower percentages of sulphur and phosphorus which are harmful for steels used in construction. Higher sulphur leads to “Hot Shortness” wherein the melting point of steel is lowered, leading to failure under extreme high temperature conditions. Higher phosphorus leads to “Cold Shortness” wherein the steel becomes brittle under extremely cold conditions and leads to cracking. Also, the value of Carbon percentage in these bars is low to improve the ductility and weldability of steel.
These FE 500 D and FE 500 steel specification bars are crafted under strictly regulated manufacturing process which makes them easily bendable. There is an important connection between concrete and steel. Concrete has great compressive power but relatively low tensile strength and ductility, therefore when it fuses with TMT steel bars; it gives rise to a highly ductile and tensile combination.
While both Fe500 and Fe500D TMT bars are the best TMT bars for construction projects, the Fe500D TMT bars certainly comes with a greater ductile strength than the Fe500 TMT bars. The Tensile strength of steel remains the same for both these products. However, it is the overall ductility that makes all the difference. Ductility is the ability of the material, to plastically deform and adapt while being stressed with a tensile load.When a piece of ductile material is pulled, before rupture (breaking apart), is will deform, change its shape to adapt to the stress.
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15 окт 2024
