Could you help check does the steel weight formula?

[MachineMfg]

Homework Statement

I want to check steel weight with formula, and I find it via google.

Homework Equations

Here is it: https://machinemfg.com/steel-weight-calculation-formula/

The Attempt at a Solution

Hope you guys to help me check does above formula is correct. Many thanks in advance.

 

[lekh2003]

Yes, these formulas are correct. The formulas are easily derived through the equation m = pV

"m" is the mass of the object.
V is what you have to calculate as the volume.
p is the density.

The website is simplifying this formula into situation specific equations which can be derived from common variables you might know.

 

[scottdave]

It is common in many industries to come up with handy convenience calculations, such as these.