Raw steel production in the country's Great Lakes region was 659,000 tons in the week ending June 1, according to estimates from the American Iron and Steel Institute.
Production was down 16,000 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 654,000 tons last week, up from 631,000 tons a week earlier.
U.S. steel mills had a capacity utilization rate of 77 percent last week, which is down from a 77.2 percent production rate a week earlier. The capacity utilization rate at this time last year was 78.6 percent.
Domestic mills have produced about 40.4 million tons of steel this year, down 7 percent from the same period in 2012. Last year at this time, domestic mills produced about 43.5 million tons of steel.
Domestic mills made about 1.8 million tons of raw steel last week.