Ok, more mathtime questions

[Sam Salvati]

I need to figure out how much a block of steel weighs (not exactly, but close). The block is 36 inches long and 6 inch square. What formula would I use?

 

[Burton Harruff]

http://www.matweb.com/tools/weightcalculator.aspx
http://www.dwsteel.com/calculator.asp?m1=2&m2=4&s=1
Check this out Sam.

 

[Steven Penner]

367.6075 pounds

using the calculator in the previous link - very cool calculator

 

[Sam Salvati]

Cool, thanks Burton! 367 pounds, about right for a good anvil .

 

[Fred.Rowe]

I put the link in my bookmarks file.

Thanks Carl:thumbup:

 

[SteelSlaver]

Remember steel weighs .283 lb per sq inch. another handy number is a piece of steel 12" x 12" 1/4" thick weighs 10# and 1/2" thick is 20# 1/8" 5#. Aluminum is 1/3 the weight of steel. A cubic ft (12"x12"x12")of steel is 498#.

Gold is almost 1200# per cubic ft and I am always impressed when a movie cowboy takes a couple bulging sacks of gold and strolls out to his horse tosses them on and rides away. Those where real men! and horses too.

 

[Patrice Lemée]

Here is a free downloadable weight calculator. In Metric and English to boot.

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

Pad

 

[adammichael]

length in inches x width in inches x thickness x .283 will give you pounds.
_____________________________________________________________

12" x 12" x .25 thick would be..

12x12x.25x.283 = 10.19 lbs

12" x 12" x .50" thick would be..

12x12x.50x.283 = 20.38 lbs

 

[P.Brewster]

0.283 to 0.290 will all get you close enough for most calculations.

A full sheet of 16g steel (0.060" x 48" x 120") is almost exactly 100 lbs - doing the math in reverse, you get 0.289 lbs/cubic inch. So, apparently, that last decimal point can vary depending on type of steel.

 

[adammichael]

0.283 to 0.290 will all get you close enough for most calculations.

A full sheet of 16g steel (0.060" x 48" x 120") is almost exactly 100 lbs - doing the math in reverse, you get 0.289 lbs/cubic inch. So, apparently, that last decimal point can vary depending on type of steel.

48 x 120 x .0598 (16 ga) x .283 = 99.51 lbs

 

[mete]

A 4"x4"x12" piece of steel weighs very close to 50 lbs ! There's a story that goes with that !! Sam, I have an old book you can have "Mathematics for Machinists" which shows how to make various calculations .That's 1915 but the math is the same [ not 'New Math"].

 

[SteelSlaver]

I think that alloys change the weight some most of the variations are more due to the dimensions themselves. Plate is seldom exact in thickness. Those numbers will get you close enough for most anything we need them for.

 

[P.Brewster]

48 x 120 x .0598 (16 ga) x .283 = 99.51 lbs

Is my calculator broken, or is

48 x 120 x 0.0598 x 0.283 = 97.48, not 99.51 ?

either way, my point was that for most calculations, you are splitting hairs as to whether you use 0.283, 0.285, or 0.287.

 

[adammichael]

Is my calculator broken, or is

48 x 120 x 0.0598 x 0.283 = 97.48, not 99.51 ?

either way, my point was that for most calculations, you are splitting hairs as to whether you use 0.283, 0.285, or 0.287.

Your right, my calculator works, its my fingers that are broke.