Home -> Forums -> Construction -> Steel -> Fe 500 for Steel for residential construction ?

Fe 500 for Steel for residential construction ?

Tue Jun 05, 2012Total posts : 19
George Kattapuram
George Kattapuram
Join date: Apr 2011
Topic: Fe 500 for Steel for residential construction ?

I am planning to construct a 12000 Sq. ft residential project.
The architect has desinged for Fe 415, however while trying to purchase people are not offering Fe 415 and instead they are proposing Fe 500 at the same rate of 415. Can you advise what i need to do. 
Do i need to revise the structurals due to this problem and save some cost on the steel. The design stage is actually over and I am just about to buy the structural steel for the foundations to start this week >

Pls advise 
George 
9677039957
Wed Jun 06, 2012Post  #1
l.gopal
l.gopal

Join date: Jan 2012
building construction fe 415 sufficent
 
Thu Jun 07, 2012Post  #2
S L Gupta (Civil Engg)
S L Gupta (Civil Engg)

Join date: Mar 2008
Dear george
Use Fe 500, factor of safty will be more and it is good as  safety against earthquake will increase and some bottleneck at site during construction also covered.
Both are High yield strength steel cold twisted deformed bar as per IS 1786 but the main difference is that Yield Stress or 0.2% proof stress of fe 415 is 415 N/Sqmm and that of fe 500 is 500 N/sqmm. Fe415 is better for housing construction.

Rest of difference is given below:

1. Chemical composition:

Constituent/ Fe415 / Fe500

Carbon / 0.30 / 0.30
Sulphur / 0.06 / 0.055
Phosphorus/ 0.06 / 0.055
Sulphur & Phosphorus / 0.11 / 0.105

2. Elongation per cent,Min,on gauge length 5.65 sqrt( A) where A is the cross sectional area of the test piece:

Fe415 :14.5
Fe500 :12.0

3.Tensile Strength,Min:

Fe415 :
10% more than the actual 0.2% proof stress but not less than 485N/mm .sq
Fe500 :
8% more than the actual 0.2% proof stress but not less than 545N/mm.sq
.
 
Thu Jun 07, 2012Post  #3
Ar. Manoj Ralen
Ar. Manoj Ralen

Join date: Feb 2008
Dear George, 
As Gupta ji has recommended.  FE 500 has better specifications compared to FE 415. As your engineer has designed the building for FE 415, If you put FE 500, you would be putting be putting better specification in your building.  As I understand that FE 415 is not easily available there and I know FE 500 is slightly expensive compared to FE415, so if cost is a concern then you can ask your structure engineer to redesign the building for FE 500 and if the design permits then he would reduce the quantity of steel required  which would offset the additional cost for FE 500.  So discuss this with your structure engineer or just go ahead with FE 500. 

Thanks
 
Thu Jun 07, 2012Post  #4
George Kattapuram
George Kattapuram

Join date: Apr 2011
Thanks all for the timely advise. This was really useful.

regards
George
 
Fri Aug 03, 2012Post  #5
Kinley Tshering
Kinley Tshering

Join date: Aug 2012
Post subject: Using of higher grade steel over already designe...

Dear all,

I would like to have a solution for the following:

I am constructing a residential house of five storey designed for fe 415 and reached second floor using fe 415 steel. Now in the market we are not able to find the above steel grade. The manufacturer has upgraded to fe500. I am wondering, whether it is ok to use fe 500 steel without checking the steel requirement. The steel dealers are offering the same rate for the higher grade. I am confused, as every body says fe 500 has a an added advantage, but I am worried of mixing of two grade steel. Wondering of over reinforced, if same steel requirement is used using higher specification.Therefore, please advice

 

Kinley

 
Fri Aug 03, 2012Post  #6
P. Panchal
P. Panchal

Join date: Apr 2011
Hi Kinley,
I think there is nothing to worry if u use fe 500.
 
Mon Aug 06, 2012Post  #7
verne smooth
verne smooth

Join date: Jul 2012
no worry.





 
 
Fri Sep 12, 2014Post  #8
G.PITCHAIAH
G.PITCHAIAH

Join date: Sep 2014
Post subject: merits of fe 415 steel

DEAR GEORGE,                                                                                                                     1. Use only fe 415 steel as per design.If in market fe415 is not available you must test the FE 500 STEEL in lab that % of elongation required is 14.5.                     2.NOT getting in the market is  rerolling fe500 is simpler to 415.i.e duplicating branded is fashion today
 
Sat Aug 22, 2015Post  #9
bala
bala

Join date: Jul 2014
Dear All,

We bought the steel Fe 500 and kept in open place.  
And because of some reason, we hold the work around 2-3 months.

Now the steel is looking in brown color because of exposes to air and rain.

Now construction work started again . Shall we use the same steel for the construction work ?

please advice

thanks 



 
Sat Aug 22, 2015Post  #10
JAI PRAKASH
JAI PRAKASH

Join date: May 2014
Yes you can.

 
Mon Aug 24, 2015Post  #11
S L Gupta (Civil Engg)
S L Gupta (Civil Engg)

Join date: Mar 2008
Dear Bala
         Yes you can use the above said steel.
For brown color you may not worry as it is not rust.For satisfaction employ one mazdoor  with gunny bags and kerosine oil and rub the steel bars before use in advance. Some of the brown color will be automatically rub  with hands by blacksmith while working on steel bar.
USE CEMENT MIXED WITH WATER SPRINKLED ON STEEL BARS BEFORE STARTING THE LAYING OF CEMENT CONCRETE.
READ AT GHAREXPERT construction section of sub section of concrete which will help you  in laying concrete.
 
Sat Aug 29, 2015Post  #12
bala
bala

Join date: Jul 2014
Dear sir,

Thanks for your response 


 
Tue Sep 01, 2015Post  #13
JAI PRAKASH
JAI PRAKASH

Join date: May 2014
:)

 
Sat Oct 31, 2015Post  #14
moeen akhter
moeen akhter

Join date: Jun 2015
Dear all,

please tell me what is the difference between deformed and mild steel bars 
 
Sun Nov 01, 2015Post  #15
JAI PRAKASH
JAI PRAKASH

Join date: May 2014
One is pure from the furnace and other is made of scrap iron.

S.R. Buildtech - Complete Building Solution

CONSTRUCTION, INTERIOR & EXTERIOR

Services providing in Delhi/NCR

Call Whatsapp SMS: 8802836186

 
Mon Apr 23, 2018Post  #16
dravin sahay
dravin sahay

Join date: Mar 2018
Post subject: Fe 500D TMT Bars

Fe 500D TMT bars are the best to protect your building during earthquake.

Cost Advantage
Steel requirement by using Fe 4151.00 MT
Steel requirement by using Fe500 - 0.83 MT

Saving in Steel by using Fe 500 is = 1.70 Kg

For detailed property information for Fe 500D tmt bars, Corrosion Resistance Index and more you can visit the page.

 
Mon Apr 23, 2018Post  #17
S L Gupta (Civil Engg)
S L Gupta (Civil Engg)

Join date: Mar 2008
Thanks
 
Mon May 21, 2018Post  #18
VivekC
VivekC

Join date: May 2018

Follow the plans to the letter, if the plans are made with FE415 as the bars, then proceed with Fe415. While FE500 is bit much for residential structures, you can still use it. Expect extra efforts if the bars need to be bent.   


 
Mon May 21, 2018Post  #19
S L Gupta (Civil Engg)
S L Gupta (Civil Engg)

Join date: Mar 2008
Dear Sir,
                       Thank you
 

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