The former Irish Steel/Ispat steelworks on Haulbowline Island underwent modernisation in 1972 when a 35 tonne Electric Arc Furnace (EAF) replaced the oil fired open hearth furnace. This required a large electrical current to power the furnace and an electrical substation and transformers with over 400 PCB filled capacitors were installed. In 1981 a 90 tonne EAF was installed and the plant reconfigured to combine fast melting in the EAF with continuous casting and rolling. A ladle furnace (used to keep molten metal from the EAF hot before it was cast) was installed in 1992.
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From 1981 the steelworks produced steel sections from scrap steel sourced from Ireland and Europe until June 2001 when Irish Ispat Ltd production ceased.
Source: Enviros Aspinwall report to DCMNR, October 2002 (27MB)