Raw steel production in the country's Great Lakes region was about 655,000 tons in the week ending June 29, according to an American Iron and Steel Institute estimate.
Production fell by 27,000 tons from the week prior, a decrease of about 3.9 percent. Most of the raw steel production in the Great Lakes region takes place in Indiana and the Chicago area.
Production in the Southern District was estimated at 649,000 tons last week, down from 651,000 tons a week earlier.
Total domestic raw steel production last week was 1.82 million tons, down from 1.88 million tons the week prior.
U.S. steel mills had a capacity utilization rate of 76.1 percent last week, which is down from 78.5 percent a week earlier. The capacity utilization rate had been 74.8 percent at the same time last year.
So far this year, domestic steel producers have had a capacity utilization rate of 76.8 percent, which is down 2 percentage points from the same period in 2012.
Domestic mills have produced an estimated 47.8 million tons of steel this year, down 6 percent from the same period last year. The mills had made about 50.9 million tons of steel by June 29 in 2012.
Though May, the United States imported an estimated 13.2 million net tons of steel, or about 11 percent less than during the same period last year. About 10.3 million tons of finished steel was imported during that time period, with imports accounting for about 23 percent of the total market share.