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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.

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13y ago
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11y ago

2.98kg/m

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Q: What is the unit weight of 20 mm dia tmt bar?
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Related questions

What is the unit weight of 10 mm dia tmt bar?

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


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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.


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