Metals, Steel, Aluminum & Coil Processing worked example

Billet Yield at 66% target casthouse yield: a worked example

Suppose target casthouse yield falls to 66%. This page works the full calculation at that level so you can see exactly which result moves and by how much. Estimate billet yield by dividing prime billet weight by the cast weight charged, then see how far the yield sits from your target.

The inputs for this scenario

  • Prime billet weight produced: 235,000 lb (held at the documented default)
  • Total molten metal cast: 250,000 lb (held at the documented default)
  • Target casthouse yield: 66 % (the input this scenario stresses; the baseline uses 92)

Working through the calculation

  • The calculation starts from the formula this tool documents: Billet yield = prime billet weight ÷ cast weight × 100.
  • Billet yield works out to 94 % at these inputs, and this is the headline figure for the scenario.
  • Gap to target yield works out to -28 points at these inputs.
  • Prime billet weight works out to 235,000 count at these inputs.
  • Cast weight works out to 250,000 count at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where target casthouse yield sits at 92% and the headline result is 94 %, this scenario lands almost exactly on the baseline at 94 %.
  • It computes prime billet weight as a percentage of total cast weight, plus the point gap to your target yield. When the numbers land here, the stressed input is the lever to work; the walkthrough above shows exactly how much each output recovers as it climbs back toward the baseline.

Results at a glance

  • Billet yield: 94 % (headline result)
  • Gap to target yield: -28 points
  • Prime billet weight: 235,000 count
  • Cast weight: 250,000 count

Run it with your numbers

  • To rerun this with your own numbers, open the live Billet Yield calculator, set target casthouse yield to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.