Answer / sbc

perpect clcltn frml

pi d sqr
4 x7.85/1000

Answer / zain

3.14*1000*8/2*8/2*0.00000785=0.394384kg

Answer / stavros siamantas

Firstly, you need to evaluate the section area of your beam.

If the section area is a cicrle, then:

A=(1/4)*π*d^2 -> A=(1/4)*3.14159*0.008^2 -> A=5.026E-05 m2

Then, in order to acquire mass per running length, you just multiply the section area with the density of the subject material. In our case, ρ_steel=7850kg/m3.

So, we get: W/L=A*ρ_steel=5.026Ε-05*7850 ->

W/L=0.3946 kg/m

Multiplying with the length of our beam (1m in our case), we get W=0.3946kg.

Answer / shahzad

steel weight formula d^2/162*L

Answer / hobibor

Which 162 ?

Answer / shaikh soyal

formula For finding weight of bar = (D^2/162)*L
so,
wt. of bar=(8^2/162)*1 = 0.395061728
aproxmetly =0.4kg

Answer / umesh singh

8*8/162=.395kg

D*d*/162=1mtr length, weight showing

Answer / sanjeev jain

The weight/m of an 8 mm rebar is 0.395 Kg/m.

For calculating the sectional weight of steel rebars/
circular sections with ease, use this formula:

Dia(mm)/10* Dia (mm)/10 * 0.616 = Weight in Kg/m

For example 32 mm rebar shall have:

3.2 * 3.2 * 0.616 = 6.307 Kg/m

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