Foundry & Forging worked example

Melt Chemistry Adjustment at 98% expected element recovery factor: a worked example

This scenario runs the melt chemistry adjustment calculation on the strong side: 98% expected element recovery factor, with every other input held at its documented default. Use it when carbon, silicon, magnesium, inoculant, alloy addition, or chemistry trim needs a controlled planning adjustment before the next heat.

The inputs for this scenario

  • Baseline alloy addition: 42 lb (unchanged)
  • Chemistry correction amount: 6 lb (unchanged)
  • Expected element recovery factor: 98 % (raised for this scenario; the documented default is 85)

Working through the calculation

  • Applying the documented formula (Adjusted melt chemistry adjustment = (baseline chemistry addition + chemistry correction amount) × expected recovery or adjustment factor) to the inputs above produces each figure below.
  • At this operating point the engine returns 252 units for adjusted melt chemistry addition, the number this scenario is built around.
  • At this operating point the engine returns 154 value for gap to target.
  • At this operating point the engine returns 42 value for measured value.
  • At this operating point the engine returns 6 x for correction factor.

How this compares with the baseline

  • Against the tool's baseline example, where expected element recovery factor sits at 85% and the headline result is 252 units, this scenario lands almost exactly on the baseline at 252 units.
  • Use it on the melt deck when planning a charge or making a mid-heat trim after a spectrometer reading shows you are off aim. Treat this as a target state: the delta against the baseline quantifies what the improvement is worth before you commit to chasing it.

Results at a glance

  • Adjusted melt chemistry addition: 252 units (headline result)
  • Gap to target: 154 value
  • Measured value: 42 value
  • Correction factor: 6 x

Run it with your numbers

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

Last reviewed 2026-05-12.