Tube, Pipe & Profile Forming worked example
Tube Scrap Rate at 99% target first-pass yield reference: a worked example
Push target first-pass yield reference up to 99% and the picture changes. This example computes every intermediate figure at that operating point. Use it when tube scrap rate in tube, pipe and profile forming needs a clean rate and gap-to-target you can put on a tier board.
The inputs for this scenario
- Tubes scrapped in the run: 8 units (unchanged)
- Total tubes produced in the run: 250 units (unchanged)
- Target first-pass yield reference: 99 % (raised for this scenario; the documented default is 95)
Working through the calculation
- Applying the documented formula (Tube Scrap Rate rate = affected amount รท total amount) to the inputs above produces each figure below.
- At this operating point the engine returns 3.2 % for rate, the number this scenario is built around.
- At this operating point the engine returns 95.8 points for gap to target.
- At this operating point the engine returns 8 count for affected count.
- At this operating point the engine returns 250 count for total count.
How this compares with the baseline
- Against the tool's baseline example, where target first-pass yield reference sits at 95% and the headline result is 3.2 %, this scenario lands almost exactly on the baseline at 3.2 %.
- It divides scrapped tubes by total tubes produced to give a scrap percentage, then shows the distance between that rate and your target reference. The value of this scenario is the size of the gap it exposes: that gap, priced out over a year, is the budget you can justify spending to close it.
Results at a glance
- Rate: 3.2 % (headline result)
- Gap to target: 95.8 points
- Affected count: 8 count
- Total count: 250 count
Run it with your numbers
- Every input above is editable in the live Tube Scrap Rate calculator, which recalculates instantly and can be shared with the inputs intact.
Last reviewed 2026-05-12.