Researched
Crucible Steel
Benjamin Huntsman's crucible process (Sheffield, about 1740) melts steel completely, giving uniform high-quality steel for tools and springs.
Open in the interactive tree →Melting blister steel in clay crucibles removed the flaws of earlier steel and gave consistent hardness. It supplied the quality steel for precision tools and wire until Bessemer made steel cheap in bulk.
Prerequisites
Unlocks
- Bessemer Steel1856Bessemer's process aimed to make in bulk the steel crucibles made in small batches
Sources
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