NEW GENERATION STEEL REINFORCEMENT FROM TORSTEEL GROUP.

THE SPINE IN CONCRETE MEMBERS.

TORKARI  IS A HIGH STRENGTH AND HIGH BOND REINFORCING STEEL CONFORMING TO Fe550 Grade   ( Tor-55) of IS 1786-2008.

TORKARI WAS INTRODUCED IN INDIA BY TRFI IN 1987.

TORKARI ALSO CONFORMS TO INTERNATIONAL STANDARDS LIKE: DIN – 488 ( GERMANY), BS – 4483, 4449( UK), ASTM – A 497 ( AMERICAN)

TORKARI – SPECIFICATIONS – Fe-550 grade

( As per IS 1786-2008 )

Data of Available DIA:

Nominal Dia

mm

Nominal Weight

Kg/m

Permitted range of weight

kg/m

Range of length

Mts/MT

Ast

Sq.mm

5.0 0.154 0.142 to 0.166 6024 to 7042 19.63
6.0 0.222 0.207 to 0.238 4303 to 4831 28.26
7.0 0.302 0.278 to 0.326 3065 to 3598 38.48
9.0 0.500 0.459 to 0.539 1854 to 2177 63.62

Mechanical Properties: 

Parameters IS Requirements Torkari specs
  0.2% Proof Stress (P.S) 550 N/sq.mm (Min.) Passes

Ultimate Tensile Strength

585 N/sq.mm (Min.) Or 1.06 X Act P.S whichever is higher Passes
Elongation 10% Min. Above 13%
Bond Strength ( Extra Over Plain Round) 60% Min. over Mild Steel Above 100%
Weight Tolerance + or – 8% 4%

 

Chemical Properties:

Parameters IS Requirements Torkari specs
Carbon 0.30% Max 0.20%  Max
Sulphur 0.055% Max. 0.045% Max
Phosphorus 0.050% Max. 0.045% Max>
Sul+Phos 0.10% Max. 0.090% Max.

 

TORKARI – SPECIFICATIONS – Fe-500 grade

( As per IS 1786-2008 )

Nominal Dia

mm

Nominal Weight

Kg/m

Permitted range of weight kg/m Range of length

Mts/MT

Ast

Sq.mm

5.0 0.154 0.142 to 0.166 6024 to 7042 19.63
6.0 0.222 0.207 to 0.238 4303 to 4831 28.26
7.0 0.302 0.278 to 0.326 3065 to 3598 38.48
9.0 0.500 0.459 to 0.539 1854 to 2177 63.62

 

Mechanical Properties:

 

Parameters IS Requirements Torkari specs
0.2% Proof Stress (P.S)

500 N/sq.mm (Min.)

Passes
Ultimate Tensile Strength 545 N/sq.mm (Min.) Or 1.08 X Act P.S whichever is higher Passes
Elongation 12% Min. Above 14.5%
Bond Strength ( Extra Over Plain Round) 60% Min. over Mild Steel Above 100%
Weight Tolerance + or – 8% 4%

 

Chemical Properties:

Parameters IS Requirements Torkari specs
Carbon 0.30% Max 0.20%  Max
Sulphur 0.055% Max. 0.045% Max
Phosphorus 0.050% Max. 0.045% Max
Sul+Phos 0.105% Max. 0.090% Max.