Raw steel production in the country's Great Lakes region rose to 676,000 tons in the week that ended Saturday, according to an American Iron and Steel Institute estimate.
Production increased by about 8,000 tons, or about 1.2 percent, from the week prior. 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 627,000 tons, down from 655,000 tons a week earlier.
Total domestic raw steel production last week was about 1.85 million tons, which was about the same as it had been a week earlier.
U.S. steel mills had a capacity utilization rate of 77.2 percent last week, down from 77.5 percent a week earlier. The capacity utilization rate had been 70.1 percent at the same time last year.
So far this year, domestic steel producers have had a capacity utilization rate of 77.2 percent, which is down from 77.5 percent during the same period in 2012.
Domestic mills have produced an estimated 86.8 million tons of steel this year, down 1.7 percent from the same period last year. The mills had made about 88.3 million tons of steel by Nov. 23, 2012.
In September, U.S. steel mill shipped 7.8 million net tons, a 5.6 percent decrease from a month earlier but an 8.9 percent increase from the same period last year, according to the American Iron and Steel Institute.
Year-to-date shipments over the first nine months were down 2.4 percent. Shipments of hot-dipped galvanized products, hot-rolled sheet and cold-rolled sheet all declined last month.