滲しん炭たん鋼こう

noun

cement steel; cementation steel; blister steel

Technical term in metallurgy for steel produced by the cementation process, where wrought iron is heated in contact with carbon to increase surface carbon content.

• 滲しん炭たん鋼こうは、表ひょう面めん硬こう化か処しょ理りに用もちいられることがある。

  Cement steel is sometimes used for surface hardening treatments.