Density = mass/volume
The unit weight of steel is 7850 kg/m3
volume of bar = (πd2/4)*L
hence mass = ((πd2/4)*L)*7850
= ((3.14 *d2/4)*1)*7850 for unit length
= 0.785*d2*7850
= 6162.25 d2 if d is in meters
or d2 /162 if d is in mm.
By putting the value of diameter of rod, you can calculate the unit weight of any size tmt bar.
TMT bar oval weight Stand oval size in mm like 12mm size bar oval size-12*.8=9.6kg/m
Formula for steel bar weight per meter = D2/162 where D is diameter of bar
Thermo mechanical tempered Reinforcing bar or Structural steel
10 mm steel tmt of 100m weighs 62 kg and 8 mm tmt steel of 100 m weighs 39 kg
In IS 1786-2008 Clause no.4.2 , Chemical Composition and Table 3, Mechanical Properties of High Strength Deformed Bars and Wires the difference between TMT 500 and 500 d is clearly mentioned.
0.62 kg/m is the unit weight of 10 mm dia, and you use the thumb rule for all other dia unit weight per metre = d*d/162 where- d is dia of bar/rod in mm
d*d^2/162 28*28/162 4.839
TMT bar oval weight Stand oval size in mm like 12mm size bar oval size-12*.8=9.6kg/m
Density = mass/volumeThe unit weight of steel is 7850 kg/m3volume of bar = (πd2/4)*Lhence mass = ((πd2/4)*L)*7850= ((3.14 *d2/4)*1)*7850 for unit length= 0.785*d2*7850= 6162.25 d2 if d is in metersor d2 /162 if d is in mm.By putting the value of diameter of rod, you can calculate the unit weight of any size tmt bar.
Formula for steel bar weight per meter = D2/162 where D is diameter of bar
meaning of 500 D in TMT bar
the weight should be change by the diameter of the rod.one rod length is thirteen meter and it should be measured in meter only. The formulae to find the weight of rod is d square /162 and you wil get unit weight then multiply it in length then u got a weight of the rod.
quenched and self temperedsame as TMT bars
diameter square of the bar. Divided by 162. gives W/1m length
The weight of a TMT (Thermo-Mechanically Treated) rod can be calculated using the formula: Weight (kg) = (Diameter² × Length × 0.00617). For a 20mm diameter rod that is 12 meters long, the weight would be approximately 15 kg per meter. Therefore, the total weight of a 12-meter length of 20mm TMT rod is about 180 kg.
Thermo mechanical tempered Reinforcing bar or Structural steel
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