Raw steel production in the country's Great Lakes region was 642,000 tons last week, according to estimates from the American Iron and Steel Institute.
Production was down 15,000 tons from the week prior. The majority of raw steel production in the Great Lakes region occurs in Indiana and the Chicago area.
Production in the Southern District was estimated at 639,000 tons during the period that ended Feb. 9, up from 609,000 tons a week earlier.
U.S. steel mills had a capacity utilization rate of 76.1 percent last week, which is up from a 75.2 percent production rate a week earlier.
Domestic mills have produced about 10.8 million tons of steel this year, down 6.7 percent from the same period in 2012.