spiegeleisen

/'spi:gl/ Cách viết khác : (spiegeleisen) /'spiglaizm/
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spiegeleisen

A worker adds spiegeleisen to a furnace in a steel mill.

Definition

Noun: - A type of pig iron containing a significant percentage of manganese, used primarily in steelmaking as a deoxidizing agent and to increase the manganese content of the final steel product.

Usage
  • Noun:
    • Spiegeleisen is added to the molten steel to remove oxygen and improve the metal's properties.
    • The foundry ordered a shipment of spiegeleisen for the next batch of alloy steel.
Advanced Usage
  • Metallurgical Context: In historical and technical metallurgy, "spiegeleisen" refers specifically to a ferromanganese alloy with a lower manganese content (typically 15-30%) compared to standard ferromanganese. Its characteristic crystalline structure gives it a mirror-like ("spiegel") appearance when fractured.
Variants and Related Words
  • Spiegel (n): An abbreviated, informal term for spiegeleisen used within the steel industry.
  • Ferromanganese (n): A broader category of iron-manganese alloys, with spiegeleisen being a specific type with a lower manganese concentration.
  • Pig Iron (n): The crude iron from a blast furnace, which is the base material for making spiegeleisen and other iron products.
Synonyms
  • Mirror iron: A direct translation of the German origin, sometimes used as a synonym.
  • Ferromanganese alloy: A more general technical term.
Notes on Meaning
  • The term is highly specialized and is almost exclusively used within the fields of metallurgy, steel production, and historical industrial contexts. It is not used in everyday language.
spiegeleisen

A worker adds spiegeleisen to a furnace in a steel mill.

Noun
  1. pig iron containing manganese; used as a deoxidizing agent and to raise the manganese content in making steel

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