HOW TO CALCULATE WEIGHT OF STEEL BARS -lceted LCETED INSTITUTE FOR CIVIL ENGINEERS

HOW TO CALCULATE WEIGHT OF STEEL BARS

(D)2/162.5

Is the formula to calculate the weight of steel bars in KG/ Meter

So weight of 8 mm bar will be,

(8 x 8) / 162.5 = 0.39 kg/ meter

similarly, the weight of bars will be as follows,

Unit weight of steel is d square/162. How is it derived?

To be accurate W= D2/162.2 it is

Its is derived from the very basic concept

I.E., weight = density x volume

it is also can be written as weight = density x (area x length)

since,
1] density of steel= 7850 kg/m3 > (7850/(1000X1000X1000) kg/mm

2] Length= 1 m

3] Area = π(pi) x d2/ 4

Unit Weight of Steel Bar (in Kgs) = (3.14 X D^2)/4 X 1000 X 7850 / (1000 X 1000 X 1000)

Therefore, weight = (7850 x (3.14/4) d2 x 1000) / (109)

= d2 x 0.00616225 which is also can be written as,

=(d2/1) x (0.00616225/1)

= d2 / (1/162.2)

=d2/162.2

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