Steel & Carbon Skulls

arrabio

Drop-broken pieces of melted material obtained in the iron melting process in blast furnaces. This material has the following composition: 92% of Iron, 3 or 4% of Carbon, between 0,5 - 3% of Silicon, between 0,25% - 2,5% of Manganese and a maximum of 0,10% of Phosphor and Sulfur.