Benefits of Radha 550 TMT
Benefits of Radha TMT Steel bars


Saving in weight and cost of construction by RADHA STEEL Fe-550 TMT Bars

GRADE TMT FE-415 TMT FE-500 RADHA TMT FE-550
Design Strength 415 N/mm² 500 N/mm² 550 N/mm²
Quantity Required 1.000 mt 0.854 mt 0.754 mt
% of saving in weight upto 14.60% upto 24.60%

Mechanical Properties of TMT Bar as per IS:1786-2008

GRADE FE-415 FE-500 FE-550 RADHA FE-550
Yield Stress (N/mm²) >415 >500 >500 >570
Tensile Strenght (N/mm²) >485 >545 >585 >640
Elongation % >12 % >10 % >16 %

Weight Tolerance in nominal Size

SIZE STANDERD WT. KG./MTR AS PER IS:1786-2008 WT. TOLERANCE KG/MTR. AS PER IS:1786-2008 WT TOLERANCE KG./MTR. AS PER RADHA FE-550
8MM 0.395 0.367-0.423 ± 7% 0.383-0.407 ± 3%
10MM 0.617 0.574-0.660 ± 7% 0.598-0.636 ± 3%
12MM 0.888 0.844-0.932 ± 5% 0.861-0.915 ± 3%
16MM 1.58 1.501-1.659 ± 5% 1.533-1.627 ± 3%
20MM 2.468 2.394-2.542 ± 3% 2.443-2.493 ± 1%
25MM 3.856 3.740-3.972 ± 3% 3.817-3.895 ± 1%
32MM 6.318 6.128-6.507 ± 3% 6.254-6.381 ± 1%

Chemical Properties of TMT bar as per IS:1786-2008

GRADE FE-415 FE-500 FE-550 RADHA FE-550
Carbon % <0.30% <0.30% <0.30% <0.25%
Sulphur % <0.060% <0.055% <0.055% <0.050%
Phosphorus % <0.060% <0.055% <0.050% <0.050%
Sulphur + Phosphorus % <0.110% <0.105% <0.100% <0.100%
Carbon Equivalent % <0.42% <0.42% <0.42% <0.40%

Mandrel Diameter for Bend Test

GRADE FE-415 FE-500 FE-550 RADHA FE-550
Up to and including 20mm 3D 4D 5D 5D
Over 20mm 4D 5D 6D 6D

Mandrel Diameter for Re-Bend Test

GRADE FE-415 FE-500 FE-550 RADHA FE-550
Up to and including 20mm 5D 5D 7D 7D
Over 20mm 7D 7D 8D 8D

Note: where "D" is the nominal size of the test piece in MM

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