Home -> Forums -> Construction -> Pillar Work -> Steel Rod TMT FE 500 & FE 500D

Steel Rod TMT FE 500 & FE 500D

Mon Jun 05, 2017Total posts : 5
Shekar Nair
Shekar Nair
Join date: May 2017
Topic: Steel Rod TMT FE 500 & FE 500D

I am building a 2 storied house. My architect said he will used Steel Rod - FE 500D for foundation and pillar work.

But I found that the rods are only FE500. (It is embossed on the steel rods).

Is it safe to build an extra storey in future with FE 500 ?
Or should I ask him to change to FE 500D?

Please answer.


Mon Jun 05, 2017Post  #1
S L Gupta (Civil Engg)
S L Gupta (Civil Engg)

Join date: Mar 2008
Dear Sir,
         Both are good.See below

These steel 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 good for different types of 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. By doing so it will also absorb energy, represented by the area under the curve AB’ in the picture below.

The opposite of ductility is brittleness. A brittle material absorbs, during stress, very little energy (the area under the curve AB) and is, usually, not even plastic (in the example below it has a very limited plasticity).

 
Mon Jul 16, 2018Post  #2
Annesh Surjith
Annesh Surjith

Join date: Jun 2018
Post subject: Fe500 is an overkill

Hi shekhar,

As sir Gupta has said the Fe500D is more ductile in nature but when buying TMT bars it is always better to buy them after understsanding a bit more about them. If you were to consult a few opinions you could have known that Fe415 was better for home construction purposes. 
There are a lot of blogs out there that can bring you basic idea about TMT bars.
 
Thu Jul 19, 2018Post  #3
S L Gupta (Civil Engg)
S L Gupta (Civil Engg)

Join date: Mar 2008
Dear sir,
       Thank you.
 
Thu Mar 28, 2019Post  #4
Dave Travis
Dave Travis

Join date: Mar 2019
Impossible game contains lots of interesting games. Let's come and play with us.
 
Fri Mar 29, 2019Post  #5
S L Gupta (Civil Engg)
S L Gupta (Civil Engg)

Join date: Mar 2008
Dear Sir,
         Thanks for visiting the site.
 

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