Sheet Metal Stamping & Press Lines calculator

Coil Yield Calculator

Find the share of consumed coil that becomes parts after scrap and offal. You need matching coil and scrap scale readings and the approved yield target.

What this calculator does

  • Measure consumed coil mass retained in parts and compare it with your job target.

Formula used

  • Coil yield (%) = 100 × (1 − scrap weight ÷ consumed coil weight)
  • Scrap share (%) = 100 × scrap weight ÷ consumed coil weight
  • Gap to target = coil yield − target yield
  • Mass retained in parts = consumed coil weight − scrap weight

Inputs explained

  • Scrap and Offal Weight: Scale total for skeleton, slugs, trim and rejected parts.
  • Coil Weight Consumed: Starting coil mass minus reusable remaining coil mass.
  • Target Coil Yield: Material utilization target from your approved job estimate.

How to use the result

  • Best suited to coil reconciliation, material target review.
  • Unmeasured inventory or scrap makes the residual part mass unreliable. Scrap resale value requires a separate cost calculation.

Current U.S. benchmarks

  • The producer price index for steel mill products stands at 381.162 (BLS, Aug 2026), up 23.4% from a year earlier. Quotes priced off last quarter's material cost miss this move.
  • U.S. iron and steel import customs value ran $2.2B in Aug 2026 (Census International Trade). The U.S. ran a trade deficit of $0.6B in the category that month. This dollar total mixes price, quantity, product mix, origin, and timing; it does not measure physical import volume or prove a tariff or reshoring effect.
  • The U.S. has 53,790 fabricated metal products establishments employing about 1,441,471 workers (Census County Business Patterns, 2023).

Common questions

  • Does sold scrap improve coil yield? No. Sold scrap still consumed metal without becoming a part. Apply the resale credit separately when calculating material cost.
  • Should startup pieces count as scrap? Yes. Include startup, threading and rejected parts consumed by this run, even when the production counter excludes them.
  • Can I use pounds instead of kilograms? Convert both readings to kilograms before entering them. The percentage would be unchanged using another shared weight unit, but the retained mass output is labeled in kilograms.
  • What target should I enter? Use the material target approved for this part and process. Compare measured yield with that requirement; the illustrative default is not an industry benchmark.

Related guides

Last reviewed 2026-10-06.