Metals, Steel, Aluminum & Coil Processing worked example

Billet Yield at 99% target casthouse yield: a worked example

Push target casthouse yield up to 99% and the picture changes. This example computes every intermediate figure at that operating point. Use it when a process or quality engineer tracks how much of the cast weight ends up as prime billet versus crop and scrap.

The inputs for this scenario

  • Prime billet weight produced: 235,000 lb (unchanged)
  • Total molten metal cast: 250,000 lb (unchanged)
  • Target casthouse yield: 99 % (raised for this scenario; the documented default is 92)

Working through the calculation

  • Applying the documented formula (Billet yield = prime billet weight ÷ cast weight × 100) to the inputs above produces each figure below.
  • At this operating point the engine returns 94 % for billet yield, the number this scenario is built around.
  • At this operating point the engine returns 5 points for gap to target yield.
  • At this operating point the engine returns 235,000 count for prime billet weight.
  • At this operating point the engine returns 250,000 count for cast weight.

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. The value of this scenario is the size of the gap it exposes: that gap, priced out over a year, is the budget you can justify spending to close it.

Results at a glance

  • Billet yield: 94 % (headline result)
  • Gap to target yield: 5 points
  • Prime billet weight: 235,000 count
  • Cast weight: 250,000 count

Run it with your numbers

  • Every input above is editable in the live Billet Yield calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.