Advanced Technical Ceramics calculator

Green Body Scrap Rate Calculator

Green ceramic parts are fragile before firing, so cracks, chips, laminations, low density, and handling breaks can consume powder and kiln capacity before value is added. This calculator measures green-body scrap so teams can separate pressing and handling losses from firing or finishing yield issues.

What this calculator does

  • Calculate green ceramic body scrap from rejected unfired parts, total green parts handled, and the allowed scrap target.
  • a process engineer needs to quantify unfired scrap before sending a batch of technical ceramic parts to the kiln
  • Returns the percent of unfired ceramic parts lost before sintering or kiln loading.

Formula used

  • Green body scrap rate = rejected green bodies ÷ total green bodies inspected × 100
  • Scrap gap to allowance = green body scrap rate - allowed green scrap rate

Inputs explained

  • Rejected green bodies: undefined
  • Total green bodies inspected: undefined
  • Allowed green scrap rate: undefined

How to use the result

  • Use it after pressing, green machining, drying, debinding preparation, or transfer to kiln furniture.
  • It depends on consistent defect coding; firing cracks, fired warpage, and grinding rejects should be measured separately.

Common questions

  • What information do I need for green body scrap rate? You need the count of rejected unfired parts, the total green bodies inspected, and the scrap allowance for that material or product family.
  • Which units should I use for green body scrap rate? Use the units shown on each field and keep the same basis across the calculation. Do not mix green and fired dimensions, parts and batches, kilograms and pounds, hours and cycles, or square inches and square centimeters unless you convert them first.
  • What does the green body scrap rate result tell me? It shows the percentage of green parts lost before firing and whether the lot is above or below the allowed scrap level.
  • When is this green body scrap rate estimate only approximate? Use it to improve pressing pressure, binder burnout preparation, handling fixtures, green machining support, or operator work instructions.

Last reviewed 2026-05-12.