Advanced Technical Ceramics worked example

Green Body Scrap Rate at 2.16% allowed green scrap rate: a worked example

Here is what the math looks like when conditions slip. We hold every other input steady and drop allowed green scrap rate to 2.16%, then walk the calculation through step by step. Calculate green ceramic body scrap from rejected unfired parts, total green parts handled, and the allowed scrap target.

The inputs for this scenario

  • Rejected green bodies: 38 green parts (held at the documented default)
  • Total green bodies inspected: 850 green parts (held at the documented default)
  • Allowed green scrap rate: 2.16 % (the input this scenario stresses; the baseline uses 3)

Working through the calculation

  • The calculation starts from the formula this tool documents: Green body scrap rate = rejected green bodies ÷ total green bodies inspected × 100.
  • Green body scrap rate works out to 4.47 % green scrap at these inputs, and this is the headline figure for the scenario.
  • Scrap gap to allowance works out to -2.31 percentage points at these inputs.
  • Rejected green bodies works out to 38 green parts at these inputs.
  • Total green bodies inspected works out to 850 green parts at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where allowed green scrap rate sits at 3% and the headline result is 4.47 % green scrap, this scenario lands almost exactly on the baseline at 4.47 % green scrap.
  • The practical read: the gap between this scenario and the baseline is entirely attributable to allowed green scrap rate, so recovering it is worth quantifying in dollars before considering equipment or staffing changes. It only counts defects caught at green inspection — a clean green scrap rate says nothing about cracks or warpage that only appear after sintering.

Results at a glance

  • Green body scrap rate: 4.47 % green scrap (headline result)
  • Scrap gap to allowance: -2.31 percentage points
  • Rejected green bodies: 38 green parts
  • Total green bodies inspected: 850 green parts

Run it with your numbers

  • To rerun this with your own numbers, open the live Green Body Scrap Rate calculator, set allowed green scrap rate to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.