Heat Treatment, Furnaces & Thermal Processing calculator
Thermal Processing Yield Calculator
Compare accepted and processed parts from the same lot and reporting cutoff. Enter your yield target to show the remaining gap.
What this calculator does
- Measure accepted output from a heat treatment lot against your required yield.
Formula used
- Acceptance yield = accepted parts ÷ total processed parts × 100
- Yield gap = target yield − acceptance yield
- Unaccepted parts = total processed parts − accepted parts
Inputs explained
- Accepted Parts: Released parts in the matched heat treatment lot.
- Total Parts Processed: Unique processed parts in that lot and reporting cutoff.
- Target Yield: Required acceptance yield from your production plan.
How to use the result
- Best suited to lot release review, acceptance target comparison.
- This acceptance yield is not first-pass yield when rework is included. Pending inspection can temporarily depress reported acceptance.
Current U.S. benchmarks
- Industrial electricity averages 9.77 cents per kWh across the U.S. (EIA, Jul 2026), up 4.7% from a year earlier. Energy-intensive steps carry this directly into unit cost.
Common questions
- Can recovered rework count as accepted? Yes, after acceptance and only once. This calculator measures acceptance at the reporting cutoff, not first-pass success.
- Is every unaccepted part scrap? No. The balance can include scrap, rework and parts still awaiting inspection.
- Can I enter zero accepted parts? Yes. A positive processed population with no acceptances produces zero yield.
- Does a high yield prove correct metallurgy? No. Yield records acceptance decisions; hardness, case depth and other specified tests establish conformance.
Last reviewed 2026-10-06.