Making Steel With Less Energy
In 2002, Nucor’s first Castrip micro mill in Crawfordsville, Indiana went on line. In 2009, we expanded the use of this technology by building a second Castrip plant in Blytheville, Arkansas. With these two Castrip plants, Nucor continues to improve its position as the nation’s largest recycler.
The Castrip process transforms molten steel into steel sheets instantly, producing Ultra-Thin Cast Steel (UCS). Castrip is the first flat-rolled product to be direct-cast into sheets as thin as 1.4 mm and simultaneously rolled at an incredible 0.7 MM. In short, we can deliver a hot-rolled product at cold-rolled gauges.
This single-step process dramatically reduces the time, space, energy, and manpower needed to produce each coil. Each micro mill consumes 84% less energy than a conventional mill, with a 75% reduction in greenhouse gas emissions. In 2014, Castrip coils contained an amazing average of 94% recycled content.
High-strength, low-alloy, high-carbon, and weathering steels are now part of Castrip’s product offerings. The steel grades that we can produce using Castrip continues to expand.