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Anonymous Poster

# Calculating the weight of round bar

05/05/2007 2:20 AM

Dear All,

I want to Calculate the weight of round Bar,

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Power-User

Join Date: Apr 2007
Posts: 176
#1

### Re: calculating the weight of round bar

05/05/2007 4:00 AM

that' easy!

calculate area of cross section & multiply by length & then multiply the final value by density of that matl

wt = ((π/4) x d2 x l) x ρ

where,

π = 3.14

d = diameter of bar,

l = length of bar,

ρ = density of bar material

Guru

Join Date: Feb 2007
Location: Cairo, Egypt
Posts: 1746
#2

### Re: calculating the weight of round bar

05/07/2007 1:07 AM

For mild steel : ρ (density) = 7850 Kg/m3 = 490.0596 lb/ft3

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Guru

Join Date: Jul 2006
Location: "Dancing over the abyss."
Posts: 4943
#3

### Re: calculating the weight of round bar

05/07/2007 11:47 AM

Factor for steel also given as .2836 lb per in^3.

If you are looking at trying to control to tight gram weight tolerance for forging blanks, calculate for both the minimum and maximum of the diameter tolerance, as well as the minimum and maximum length tolerance of your cutting process.

You have been given correct methodolgies for calculation by prior respondents.

milo

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Anonymous Poster
#8

### Re: calculating the weight of round bar

02/22/2009 4:44 AM

density and specif gravity are same

Associate

Join Date: Mar 2007
Location: Essex, UK
Posts: 28
#4

### Re: Calculating the weight of round bar

05/08/2007 3:09 AM

http://www.suppliersonline.com/research/FreeWeightCalc.asp

It will give you most common metals and profiles.

BR

J the J

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Anonymous Poster
#18

### Re: Calculating the weight of round bar

12/27/2010 7:43 AM

4mm round 1 mtr ?weight

Anonymous Poster
#5

### Re: Calculating the weight of round bar

11/13/2008 11:40 AM
Anonymous Poster
#6

### Re: Calculating the weight of round bar

11/28/2008 7:04 AM

hi,

diameter*diameter*0.0019= the weight of round steel bar in one foot

Guru

Join Date: Jul 2006
Location: "Dancing over the abyss."
Posts: 4943
#7

### Re: Calculating the weight of round bar

11/28/2008 7:35 AM

Don't use this it isn't even close.

1" rd bar 1 foot long = 2.6376 pounds.

using this guest's formula

1 inch times 1 inch times .0019 = .0019 pounds.

beware of anonymous posts claiming expertise.

in this case Guest = Guess

stick with signed traceable, attributable, advice.

milo

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People say between two opposed opinions the truth lies in the middle. Not at all! Between them lies the problem, what is unseeable,eternally active life, contemplated in repose. Goethe
Participant

Join Date: Jan 2010
Posts: 1
#9

### Re: Calculating the weight of round bar

01/30/2010 12:12 AM

OD X OD X LENGTH X .00000628

NOTE : ALL DIMENSIONS ARE IN MM.

Guru

Join Date: Jul 2006
Location: "Dancing over the abyss."
Posts: 4943
#10

### Re: Calculating the weight of round bar

01/30/2010 9:16 AM

One should not use this answer as the .00000628 factor' s units are not given, nor is the factor identified as to what material it might be valid. It has been my exerience that once Mssr Abdul Halim Galala has posted, There is really not much to add. milo

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People say between two opposed opinions the truth lies in the middle. Not at all! Between them lies the problem, what is unseeable,eternally active life, contemplated in repose. Goethe
Anonymous Poster
#12

### Re: Calculating the weight of round bar

02/25/2010 4:00 AM

how to calculate the length

Anonymous Poster
#16

### Re: Calculating the weight of round bar

08/17/2010 5:27 AM

Dear,

This is THE Best answer of calculating weight of Mild Steel using Length and Dia

Regards

rajendra

Anonymous Poster
#17

### Re: Calculating the weight of round bar

08/31/2010 10:51 AM

thanks how to calculate of hex bar

Anonymous Poster
#11

### Re: Calculating the weight of round bar

01/30/2010 9:20 AM

And the guest never came back to inform the most basic data: what is the material ? It may be plastic as well (or Teflon - we buy regularly)

Anonymous Poster
#13

### Re: Calculating the weight of round bar

03/06/2010 6:06 AM

Mild steel 700 mm dia per mtr weight ?

Mild steel 800 mm dia per mtr weight ?

Anonymous Poster
#14

### Re: Calculating the weight of round bar

03/06/2010 9:21 AM

Mild steel 700 mm dia per mtr weight = 0.7 x Mild steel Φ1m x 1m

Mild steel 800 mm dia per mtr weight = 0.8 x Mild steel Φ1m x 1m

never learnt math in your college?

Anonymous Poster
#15

### Re: Calculating the weight of round bar

03/07/2010 12:47 AM

0.72x ... and

0.82x...

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