Nucor (NUE), the largest US-based steel producer, posted its highest second-quarter earnings ever in the second quarter of 2018. Steel Dynamics (STLD) also posted record earnings in the second quarter. The Section 232 tariffs lifted US steel prices to multiyear highs. ArcelorMittal (MT) only gets a quarter of its revenues from NAFTA. ArcelorMittal also posted its highest earnings in seven years. However, U.S. Steel Corporation (X) and AK Steel’s (AKS) earnings have lagged other steel companies in 2018.