Steel slag is no longer waste. It's a high-performance aggregate and cementitious material. SymbioFlows helps you find the best market for your slag.
Find Buyers NowThe European Waste Catalogue codes steel slag under chapter 10 02 (wastes from the iron and steel industry). Both entries below are non-hazardous, which simplifies cross-border shipment for recovery.
High-quality aggregate for road bases, asphalt, and railway ballast.
Raw material for clinker production or as a supplementary cementitious material.
Soil conditioner and liming agent to correct soil acidity.
Steel slag is a byproduct of the steelmaking process, but its chemical and physical properties make it a valuable resource.
How steel slag fits into a wider valorisation strategy.
Your steel slag stream is assessed against chemistry, waste classification and proven recovery routes — graded results in your browser in seconds. No call, no commitment.
Recovery tiers only. For numbers that survive a technical review, see the validation dossier.