How do you calculate a scrap contamination penalty?

Multiply contaminated tons by the penalty rate per ton and the contamination percentage, then add the handling fee. For 40 tons at $55/ton, 15% contamination, plus a $300 fee, that is 40 x 55 x 0.15 + 300 = $630.

What does the contamination penalty cost per ton come out to?

Divide total penalty by contaminated tonnage. Here $630 over 40 tons is $15.75 per ton, which the calculator labels per piece in its generic output.

What is a typical scrap contamination penalty rate?

Mill schedules commonly run $30-$80 per ton depending on metal and severity; the $55/ton in this example sits mid-range for ferrous shred with tramp attachments.

Should I reject or reblend a contaminated load?

Compare the per-ton penalty, here $15.75, against the cost to reblend or downgrade. If reblending costs less per ton, do it; if the penalty exceeds the metal's spread, reject.

Why is there a fixed handling fee on top?

Reinspection, re-handling, and administrative charges are flat regardless of tonnage. In this example that fixed adder is $300, separate from the $330 variable penalty.

Does a higher contamination percentage always mean a bigger penalty?

Yes, the variable portion scales linearly with contamination level, but watch for mill thresholds where exceeding a percentage flips the load from penalty to outright rejection.

Metal Recycling, Scrap Processing & Salvage calculator

Contamination penalty Calculator

When a scrap load arrives dirty with attached steel, oil, dirt, or off-spec alloy, the mill or downstream buyer levies a contamination penalty that eats straight into your margin. This calculator multiplies contaminated tonnage by the penalty rate and the measured contamination percentage, then adds a fixed reinspection and handling fee to give total dock-off cost and cost per ton. Yard supervisors, quality inspectors, and trading desks use it to price the true cost of accepting marginal material and to decide whether to reblend, downgrade, or reject. Knowing the per-ton hit before the load ships keeps a single dirty trailer from quietly erasing a week of trading profit.

What this calculator does

Estimate the contamination penalty applied to a scrap load from tonnage, dockage rate, contamination level, and fixed handling fees.
A scrap trader reconciling a mill settlement uses this to verify the dockage deducted for non-conforming material in a load.
It computes the total contamination penalty from tonnage, penalty rate, and contamination level, plus a fixed handling fee, and breaks out per-ton cost.

Formula used

Penalty = tons x penalty rate x contamination level% + handling fee
Per ton = Penalty / contaminated tonnage

Inputs explained

Contaminated tonnage:
Penalty rate per ton:
Contamination level:
Reinspection & handling fee:

How to use the result

Use it at inbound inspection or before shipping suspect material so you can negotiate, reblend, or reject before the penalty is locked in.
It assumes a single flat penalty rate and contamination percentage; real mill schedules often tier penalties or reject outright above a threshold.

Current U.S. benchmarks

The producer price index for steel mill products stands at 348.53 (BLS, May 2026), up 6.7% from a year earlier. Quotes priced off last quarter's material cost miss this move.
U.S. iron and steel imports ran $2.1B in May 2026 (Census International Trade). The U.S. ran a trade deficit of $0.4B in the category that month. Import volumes are the pressure gauge behind tariff and reshoring decisions.

Common questions

How do you calculate a scrap contamination penalty? Multiply contaminated tons by the penalty rate per ton and the contamination percentage, then add the handling fee. For 40 tons at $55/ton, 15% contamination, plus a $300 fee, that is 40 x 55 x 0.15 + 300 = $630.
What does the contamination penalty cost per ton come out to? Divide total penalty by contaminated tonnage. Here $630 over 40 tons is $15.75 per ton, which the calculator labels per piece in its generic output.
What is a typical scrap contamination penalty rate? Mill schedules commonly run $30-$80 per ton depending on metal and severity; the $55/ton in this example sits mid-range for ferrous shred with tramp attachments.
Should I reject or reblend a contaminated load? Compare the per-ton penalty, here $15.75, against the cost to reblend or downgrade. If reblending costs less per ton, do it; if the penalty exceeds the metal's spread, reject.
Why is there a fixed handling fee on top? Reinspection, re-handling, and administrative charges are flat regardless of tonnage. In this example that fixed adder is $300, separate from the $330 variable penalty.

Last reviewed 2026-05-12.