UNIT WEIGHT OF STEEL
Derivation Of (D^2/162.162)
weight of bar per meter = volume of steel × density of steel
w=area ×length × density of steel
=(Ï€d^2)/4 ×l ×7850 kg/m^3 (∴1m=1000 mm
∴area a=A=(Ï€d^2)/4 )
=(Ï€d^2)/4 ×1000 ×7850/(1000×1000×1000)
=(Ï€d^2)/4 ×7850/1000000
=0. 7855D^2×0.00785
=d^2 /1 × (0.
006166)/1
= (d^2
)/(1⁄(0. 006166)
= (d^2
)/(162..175)