Heat Treatment, Furnaces & Thermal Processing worked example

Heat Treat Cost per Part at 72% cost capture percent: a worked example

This worked example runs the heat treat cost per part numbers for a tougher week than the baseline: 72% cost capture percent instead of the typical 100%. Estimate heat treatment cost per finished part using parts in the lot, heat treat cost rate, cost capture percent, and fixed batch adders.

The inputs for this scenario

  • Finished parts in heat treat lot: 500 parts (held at the documented default)
  • Heat treat cost rate: 2.75 $ / part (held at the documented default)
  • Cost capture percent: 72 % (the input this scenario stresses; the baseline uses 100)
  • Fixed batch or certification adder: 250 $ (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Captured heat treat lot cost = finished parts × heat treat cost rate × cost capture percent.
  • Total heat treat lot cost works out to 1,240 $ at these inputs, and this is the headline figure for the scenario.
  • Heat treat cost per part works out to 2.48 $ / part at these inputs.
  • Captured variable heat treat cost works out to 990 $ at these inputs.
  • Fixed batch or certification adder works out to 250 $ at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where cost capture percent sits at 100% and the headline result is 1,625 $, this scenario comes in 23.69% below the baseline at 1,240 $.
  • Use it when quoting outside heat treat, costing hardened parts in a BOM, or weighing batch sizes against fixed furnace and cert charges. A result at this level usually justifies acting on the stressed input before touching anything else, because every other figure in the table is downstream of it.

Results at a glance

  • Total heat treat lot cost: 1,240 $ (headline result)
  • Heat treat cost per part: 2.48 $ / part
  • Captured variable heat treat cost: 990 $
  • Fixed batch or certification adder: 250 $

Run it with your numbers

  • To rerun this with your own numbers, open the live Heat Treat Cost per Part calculator, set cost capture percent to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.