Liberty OneSteel has reinvented the wheel with its world-first Polymer Injection Technology (PIT).
PIT prevents millions of old car tyres ending up in landfill while reducing the economic and environmental costs of steel manufacturing. Importantly, PIT doesn’t have any adverse effects on steel quality and it improves the environmental sustainability of the steelmaking process.
For builders, engineers and architects, this means they can take advantage of steel's strength and flexibility while boosting their environmental credentials. Using PIT will earn one Green Star point if using reinforcing steel in buildings.
Savings of 15–35 per cent on total carbon injectant costs makes the technology attractive for fabricators, distributors and developers, who can expect improvements in yield and productivity, inject oxygen consumption, refractory and electrode consumption and injection system wear.
How it works: PIT was developed by Liberty Onesteel in collaboration with the University of New South Wales (UNSW) Smart Materials Research and Technology Centre (SMaRT).
PIT steel uses recycled polymers (particularly old car tyres and high-density polyethylene plastic) as alternate carbon injectants to produce the foaming slag required for the electric arc furnace (EAF) steelmaking process.