Answer / shailesh

7850 kg/m3 * pi/4*(d/1000)^2 = W = weight/meter
W = d^2 *{7850*pi/(4*1000^2)}
W = d^2 *(1/162.19)

Answer / champak

Unit wt of steel=7850 kg/cum
if to be converted to kg/m,
wt=7850*pi/4*(d in mm)^2/(1000^2)
= (d in mm)^2/162.2

Answer / harish chakravarthi

Unit wt of steel = 7850 kg/cum
W=(7850*pi/4*d^2/1000^2)
W=d^2*(7850*3.14/4*1000*1000)
W=d^2/162.27

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