Answer / s.mani

3.14*r2/h*density of steel (7.86ton/cum)=in grams



where,
r- radius
h- length of the bar

Answer / jayaraaj.arumugam

Weight of 8mm steel bar = 0.395 Kg/m.

the calculation is ,

0.8 * 0.8 * 0.62 = 0.3968 Kg/m.

Answer / ravindra sarpate

(d*d)/162.2=64/162.2=.394kg per mt

Answer / v

One Meter Weight
Dia*Dia/162=one meter weight
8*8/162=.395kg

Answer / irfan kakar

dia*dia/162.162 =kg/m
note dia must be in mm NOW PUT THE VALUES AND TAKE A DISIRED RESULT

Answer / jekijanck

The formula for steel weight is : D^2/162*1=0.39506kg, where
D is diameter of steel.

Answer / g singh

Simple and easy method of caculating approx wt of steel
bars and easy to remember.

For Ex wt of 10 dia per meter:
Calculate accordingly ie 10 x 10 x .00617 = 617 say 620
grams per meter.

Like wise for any dia size Calculate Dia X Dia X.00617

say 16 dia = 16 x 16 x.00617 = 1.579 say 1.6 kgs per meter
and 20 dia = 20 x 20 x.00617 = 2.468 say 2.5 kgs per meter
Approx

Answer / ajay dharpure

yes

Answer / k.paul lessley valavan

Rebar Weight Formula?

Exmaple:-

There is another way of calculating the specific weight (or unit weight) of a rebar. Especially for those who are interested of rebars less than 10mm of dia.

the way is to calculate it mathematically knowing that the
Note:-
a.] Density of steel rebars is 7851 Kg/m3.
b.] 8mm Diameter Rebar

A.] Formula:-

Unit weight [Kg/m] = Cross-Sectional Area [m2] x Density [kg/m3]

B.] Answer:-

Unit weight [Kg/m] = (22/7)x(radius)2 x 7851 kg/m3
Unit weight [Kg/m] = 3.14 x 16 x 7851 kg/m3
Unit weight = 0.395 Kg/m

8mm dia 1m weight = 0.395kg

Weight of Rebar = .0395[Kg/m] x Rebar length

8mm dia 3.66m length Rebar Weight ?
= .0395[Kg/m]x 3.66 [m]
= .14457[Kg]

Answer / vignesh k

the formuls is dxd/162
then 8*8/162=0.395kg/m

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