Heat Treatment, Furnaces & Thermal Processing worked example

Annealing Cycle Time at 17% annealing schedule allowance: a worked example

This scenario runs the annealing cycle time calculation on the strong side: 17% annealing schedule allowance, with every other input held at its documented default. Use it when scheduling annealing work for stress reduction, softening, normalization, or machinability improvement.

The inputs for this scenario

  • Annealing workload: 3 loads (unchanged)
  • Annealing completion rate: 0.33 loads / hr (unchanged)
  • Annealing schedule allowance: 17 % (raised for this scenario; the documented default is 15)

Working through the calculation

  • Applying the documented formula (Base annealing hours = annealing workload รท annealing completion rate) to the inputs above produces each figure below.
  • At this operating point the engine returns 10.64 hr for required annealing cycle time, the number this scenario is built around.
  • At this operating point the engine returns 9.09 hr for base annealing hours.
  • At this operating point the engine returns 17 % for annealing allowance applied.
  • At this operating point the engine returns 0.33 loads / hr for annealing completion rate.

How this compares with the baseline

  • Against the tool's baseline example, where annealing schedule allowance sits at 15% and the headline result is 10.45 hr, this scenario comes in 1.74% above the baseline at 10.64 hr.
  • Use it when scheduling batch annealing furnace runs, committing a heat treat lead time, or checking whether a job fits before the next ship cut. 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

  • Required annealing cycle time: 10.64 hr (headline result)
  • Base annealing hours: 9.09 hr
  • Annealing allowance applied: 17 %
  • Annealing completion rate: 0.33 loads / hr

Run it with your numbers

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

Last reviewed 2026-05-12.