The whole picture in one place: how the process works, why it's a significant environmental and economic story rather than a slogan, what materials fall under it, how big the industry really is in Australia today, and the misconceptions worth clearing up before you assume you already understand it.
Scrap metal recycling follows a consistent sequence regardless of material: collection, sorting by type and grade, processing (shredding, baling, or shearing into furnace-ready form), then melting and reforming into new metal. Sorting is where most of the value gets decided, a ferrous load contaminated with non-ferrous offcuts, or vice versa, gets discounted regardless of how clean either metal individually is, which is why a simple magnet test before you sell is worth more than most sellers assume.
Ferrous scrap usually goes directly into electric arc furnace steelmaking, since EAF technology was built specifically to run on scrap rather than iron ore, not adapted to accept it as an afterthought. Non-ferrous metals like copper and aluminium are typically refined further before reuse, since contamination has a larger effect on their final quality and a narrower tolerance for impurities. For a deeper, step-by-step version of this same process from the recycler's side, not the seller's, see how recyclers actually use scrap metal.
It's easy to think of scrap recycling as a diffuse, small-scale activity, dozens of local yards each handling modest volumes. At the furnace end, it's the opposite. InfraBuild's two electric arc furnaces, a 750,000-tonne-a-year unit in Laverton, Victoria and a 620,000-tonne-a-year unit in Rooty Hill, NSW, together remelt around 1.4 million tonnes of scrap steel a year, sourced through 21 recycling facilities the company operates across the country. Australia's whole EAF sector consumed roughly 2.8 million tonnes of scrap steel in 2022, meaning that single company accounts for close to half of it.
That concentration is the actual shape of the industry: a large, fragmented base of collectors and yards feeding a comparatively small number of high-volume processors and mills. It's also why the sourcing side of the business matters so much to a recycler, keeping 1.4 million tonnes a year flowing through two furnaces requires a genuinely reliable, ongoing supply chain, not a series of lucky one-off purchases.
The environmental case isn't a rounding error: recycled steel cuts CO2 emissions by roughly 58% compared to virgin production, aluminium by about 92%, and copper by around 65%, alongside major reductions in water use and other pollution. InfraBuild's own published figures for its EAF operation put the per-tonne saving at 1.5 tonnes of carbon, 1.4 tonnes of iron ore, 740 kilograms of coal, and 120 kilograms of limestone, broadly consistent with independent estimates even where the exact numbers differ slightly by methodology. The economic case runs alongside it, recycled metal typically uses 60-95% less energy to produce than metal from virgin ore, which is precisely why manufacturers increasingly choose it on cost grounds, not just sustainability grounds. Full numbers, metal by metal, are in the environmental impact breakdown.
Steel and iron, identified with a simple magnet test. The largest scrap category by volume, feeding directly into electric arc furnace steelmaking.
Copper, aluminium, brass, lead, zinc, stainless, and more. Non-magnetic, generally higher value per kilogram than ferrous.
PET, HDPE, and mixed plastic. Chemically disqualifying to mix resin types, unlike metal, which just prices down when mixed.
OCC (old corrugated cardboard) and mixed paper, sorted separately since contamination affects recyclability differently than metal.
Circuit boards, cables, and components, a different recovery process than any physical metal category.
Around 145 to 146 dedicated scrap metal recycling businesses operate across Australia, a smaller and more concentrated pool than most sellers assume, with growth coming from existing operators expanding rather than new competitors entering the market. Globally, demand is being reshaped by electric arc furnace steelmaking's growth from roughly 30% of global output toward 38-40% by 2035, and by policy like the EU's carbon border mechanism, which now prices the emissions gap between recycled and virgin metal directly into trade decisions.
For the fuller current-state picture, see the State of Scrap Trading 2026 report, and for the demand-side detail on EAF specifically, see how EAF expansion is reshaping scrap demand.
"Recycled metal is lower quality than new metal" is the most persistent myth, and it's simply not true for the metals that make up the overwhelming majority of scrap volume. Refined recycled steel, aluminium, and copper are chemically identical to virgin metal, remelting doesn't degrade the material itself, only contamination during collection and sorting affects final quality, which is exactly why grading matters so much more than the recycled-versus-virgin distinction ever does.
"It's only worth doing at real scale" is the second common misconception, and it undersells how broadly the economics hold up. A single household appliance, a tradesperson's job offcuts, and a demolition site's structural steel all follow the same underlying process and the same grading logic, only the volume changes, not whether it's worthwhile. The third misconception, that scrap metal recycling is primarily an environmental gesture rather than an economic one, gets addressed directly above: the energy savings are large enough that cost, not conscience, is increasingly the deciding factor for manufacturers choosing scrap over virgin ore.
It's sorted by type, graded by purity and condition, then processed, shredded, baled, or cut, before being melted and reformed into new material. Ferrous scrap typically goes straight into electric arc furnace steelmaking; non-ferrous metals are usually refined further before reuse.
It's genuinely significant, not marketing. Recycled steel cuts CO2 emissions by around 58% compared to virgin production, aluminium by about 92%, and copper by roughly 65%, figures from real energy and emissions research, not ScrapTrade's own estimate.
The term itself is metal-specific, but a recycling operation and a platform like ScrapTrade often handle plastics, paper, and e-waste alongside metal, since the sorting, grading, and buyer-matching problem is structurally similar across all of them.
Real, but more concentrated than most people assume, roughly 145-146 dedicated scrap metal recycling businesses operate nationally, and the sector is consolidating around existing operators rather than growing through new entrants.
Australia's electric arc furnaces consumed roughly 2.8 million tonnes of scrap steel in 2022. InfraBuild's two furnaces alone, in Laverton, Victoria and Rooty Hill, NSW, account for around 1.4 million tonnes of that on their own, fed by a network of 21 recycling facilities the company runs nationally.
Electric arc furnace steelmaking, which runs primarily on scrap rather than virgin ore, is growing from roughly 30% of global steel output toward 38-40% by 2035, and policy shifts like the EU's carbon border mechanism are pricing the emissions gap between scrap and virgin material directly, not just as a talking point.
Meaningfully, yes, for the metals already in circulation. Estimates vary by source, one steelmaker's own figures put the saving at roughly 1.4 tonnes of iron ore per tonne of scrap recycled, others land close to that. It doesn't eliminate mining altogether, global metal demand still exceeds what scrap alone can supply, but it materially reduces how much new extraction is needed.
Regulated, and increasingly so. Scrap metal dealers must be registered under state-specific schemes, New South Wales requires police registration, Victoria requires registration under the Second-Hand Dealers and Pawnbrokers Act 1989, and South Australia introduced mandatory licensing and ID verification in 2025 after a spike in copper theft. It's a genuine industry with real compliance obligations, not an informal trade.
Whether it's ferrous or non-ferrous, checked with a simple magnet test, is the single biggest factor, non-ferrous metals like copper and aluminium generally command a far higher price per kilogram. Within each category, grade and cleanliness are the next biggest levers, contaminated or mixed material is discounted regardless of the base metal's value.
Check today's reference prices across every material category.
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