Nucor-Yamato Steel, Arkansas, has adopted various technologies in order to increase the efficiency of chemical energy used in its EAFs. A mass and energy balance is presented, along with an overview of the results.

Charter Steel recently upgraded its 90-ton EAF from using the conductive bottom concept to the pin-type bottom electrode. This article summarizes the conversion project from its inception through start-up and operation.

Using the Consteel® process with hot metal charging, integrated steel plants can achieve production rates of more than 300 tons/hour with a single-vessel shop. This article discusses the technology and economic benefits of using the process.

A three-injector CoJet system was designed and installed at Nucor Steel–Hertford. This article details the start-up and operating results of the first Consteel furnace to successfully use multifunctional sidewall burner/lance technology.

New injection technologies have increased the efficiency of thermal and chemical input into the EAF. A benchmark study compares the performance data of three plants using Techint’s multipoint oxygen and carbon injection system with 40 other EAFs.