During this project I managed to weigh the piece during the various stages of production. The weight desired was 60 ounces.
This just illustrates how much steel is lost due to scaling during the forging process. For heavy forging not requiring forge-welding I use anthracite as is the case here. Forging with charcoal does consume less of your material.
A 16.5cm length of 4.5cm diameter piece of axle steel was cut: 2114 g / 75 oz
After drifting and forging to shape, and including the weight of the plug removed from the eye: 1861 g / 65 oz
Grinding and filing: 1728 g / 61 oz
After polishing: 1703 g / 60 oz
The hammer head is 19cm long and 11.5cm measured from the face to where the eye starts. The face is 30mm square and heat treated.