noun
- a type of iron containing a high percentage of manganese, used in steelmaking
Usage: metallurgy
Examples
- The foundry ordered several tons of spiegel for the steel production process.
- Spiegel is added to molten iron to remove impurities and improve steel quality.
- The metallurgist explained how spiegel helps in the decarburization process.
- High-grade spiegel contains between 15 and 30 percent manganese.
- The steel mill’s inventory included both pig iron and spiegel.