Powdered Iron/Steel dross from laser cutting

I have access to a large quantity of powdered iron/steel as a result of laser cutting metal. This metal is comprised of approx. 95% iron to 5% stainless steel and typically measures between 1 and 100 microns per particle.
This powdered metal, which closely resembles coffee grounds, is currently stored in zip-lock bags in 205L drums. I currently have access to approx 1 metric tonne of this product but I hope to be able to source a steady and increased supply once I can find a buyer.