Unit Weight Of Steel Formula I How to derive D2/162 I Derivation Of (D²/162) I What Is D²/162

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What is Unit Weight of Steel?
generally, weight of steel is calculated in kilogram per metre. We have a formula how to calculate Unit Weight of Steel bar that is
Weight = D2L/162.
Steel unit weight formula derivation D2L/162
Weight =volume × density
Weight= cross sectional area × length of Steel)× density of steel
Weight = πD2/4× density
π (pai) =3.14
D=Diameter of Steel in millimetre
d = density of steel =7850kg/m3
W= weight of Steel in kilogram
L= length of Steel in metre=1meter
Before putting all the value we should Convert millimetre into metre.
1mm =1/1000 m
Putting all the value we get
W=3.14×D2/(4×1000×1000)×1×7850 kg/m
W=D2×26649/4000000 kg/m
W=D2×0.006162 kg/m
This value we can written as follows
W= (D2/1/0.006162) kg/m
Solve 1/0.006162 =162.2
Rounding off we get 162.2~162
Weight = D2/162 kg/m
Weight = D2/162 kg/m the formula used for the unit weight calculation of Steel bar


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