Answer / m.ranjith kumar

It is the tensile strength of steel when it subjected to
elongation.

For Fe415,
The tensile Strength will be 415N/mm2.

For Fe500,
The tensile Strength will be 500N/mm2.

Answer / paresh

its the yield stress...

Answer / babu lal nayak

The abbreviation Fe stands for Ferrous material ie iron from which the reinforcement steel bars are manufactured.
The number 415 indicates that the Yield Strength (tensile strength when it is subjected to elongation) of steel is 415 N/mm2.

The reinforcement steel bars used in RCC (Reinforced Cement Concrete) are designated in grades of Fe250, Fe415 or Fe500 depending on their Yield Strength. (The numbers 250, 415 and 500 tell about this Yield Strength in N/mm2 the bars are designed and manufactured to have.)

Answer / sjtbehera

it is grade of bar ehich is standardise below

Description
Standard
IS:1786, Fe 415


0.2% proof stress, min, N/mm2
415.0

Ultimate tensile strength, min N/mm2
485.0
%Elongation, min
14.5 18.0 14.5
Bend
3D
Reben
5D to 7D




ASTM
A615M
Gr. 60(420)
ASTM
A615M
Gr. 75(520)
BS
4449
Gr. 460 IS:1786
Gr.Fe-500 Shyam 500
TMT Re-Bars
Tensile Strength,
N/mm2, min
620
690
506
545.0
640

Yield Strength,
N.mm2, min 500.0
% Elongation, min 7-9*


(
* The gauge length for ASTM Standards in 200mm where as for
BS and Indian Standards

Answer / shalender kumar

yield stress

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