What is scrap tracking steel manufacturing software?
It's a system that records every input tonne and every output tonne in a steel unit, splits the gap into specific loss types (scale, end cuts, miss-rolls, rejects), values each one, and compares actual yield against a standard yield per product, heat and shift so variances are visible within days, not at month-end.
Why yield variance hurts re-rolling units more than most
Re-rolling runs on thin margins and a single dominant raw material. When input is billets or ingots and output is sold by weight, a small, persistent yield gap flows straight into cost per tonne. Unlike an assembly plant, you can’t blame “a few defective units”; the loss is spread across the furnace, the stands and the cooling bed.
The other problem is timing. Many units reconcile yield only when the monthly stock count exposes it. By then the shift, the roll set and the billet lot that caused the loss are hard to trace. Yield variance tracking only works if the numbers exist per heat or per production run, not per month.
Where the tonnes go: loss types in a re-rolling mill
| Loss type | Where it happens | Recoverable? | Usually owned by |
|---|---|---|---|
| Burning / scale loss | Reheating furnace, descaling | Partly, sold as mill scale at low value | Furnace team |
| End cuts (crop ends) | Shears at head and tail of bar | Yes, sold or sent for re-melting | Mill / shear operator |
| Miss-rolls and cobbles | Stands, when a bar jams or breaks | Yes, as heavy scrap | Mill team, roll shop |
| Short lengths | Cooling bed, cut-to-length | Often sold as seconds at a discount | Finishing / dispatch |
| Off-size or rejected bars | Quality check | Sold as seconds or scrap | Quality |
| Overweight rolling | Whole mill, if section weight runs above nominal | Not recovered, given away in the sale | Mill team, sales |
What scrap tracking steel manufacturing software needs to capture
Input weight by billet lot or heat number, ideally from a weighbridge
Good output weight by section and size, weighed, plus theoretical weight for comparison
Scrap and loss weight split by the loss types above
A standard yield for that product, so actual can be compared against expected
If any one of these is missing, the variance you report is really just “unexplained difference”, which is what most units already have.
Setting up yield variance tracking in ERPNext
Reporting: turning entries into yield variance
Actual yield vs standard yield (from the BOM)
Scrap by type, in weight and value
Unexplained loss (input minus good output minus recorded scrap)
Actual vs theoretical weight on finished bars
Honest limitations
ERPNext won’t detect a miss-roll or measure scale loss on its own. It records what people and scales tell it. If the mill has no reliable weighing at input and output, software will only formalise guesses. It also isn’t a mill-level control system; roll-pass design and real-time stand monitoring sit outside an ERP.
What it does well is give you one ledger where billets, finished goods, scrap, cost and sales meet, so the yield conversation moves from opinion to numbers.
Frequently Asked Questions
Next step
Aavatto has been implementing ERPNext for manufacturers across India and the Middle East since 2020, and our case studies show how we’ve fitted ERPNext to real shop-floor processes in other manufacturing sectors. If you want to see what yield and scrap tracking would look like for your own mill, book a free ERPNext consultation. We’ll walk through your loss categories and weighing points and tell you plainly what ERPNext can and can’t cover.
