In general, you want to calculate the cross-section area of the ingot or billet (probably in square meters), then multiply it by the density of the material (in kilograms per cubic meter).
Many ingots that I've seen have a taper, you might need to consider that if you need the accuracy.
Yes there is a formula, but it has a factor based on the material's density.
Without knowing the material, and thus its density (weight per unit volume) we can't really provide proper assistance.
Calculate the volume of the billet or ingot, and multiply that volume by the density. Most of us would presume the billet or ingot to be a rectangular or near square figure, but again since you provided no specifics we hesitate to help you with "ASSumptions."
If you need help with the formula for volume of the solid figure, or density for the specific material, let us know.
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
Post 2 might look as though it begins with the letter p, but a closer look will show that it is the Greek letter rho, which conventionally stands for density.
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Sorry bout that, I thought that plwh was some kind of secret testing code to not talk to guests.
Milo
__________________
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