Special pig iron with a high manganese content (6 to 30 %) which is used in foundries as a manganese carrier. Plate-like crystals result in a white, “mirroring” fracture surface. Leading providers of spiegel iron varieties are Rio Tinto Iron & Titanium GmbH, DK Recycling und Roheisen GmbH, Richard Anton KG and ASK Chemicals Metallurgy GmbH.
Foundry pig iron
Hematite pig iron