Raw steel production in the country's Great Lakes region was 657,000 tons in the week ending May 4, according to estimates from the American Iron and Steel Institute.
Production was up 39,000 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 672,000 tons last week, down from 702,000 tons a week earlier.
Total domestic raw steel production last week was 1.9 million tons
U.S. steel mills had a capacity utilization rate of 78.6 percent last week, which is up from a 77.9 percent production rate a week earlier. The capacity utilization rate at this time last year was 79.9 percent.
Domestic mills have produced about 32.9 million tons of steel this year, down 7.5 percent from the same period in 2012. Last year at this time, domestic mills produced about 35.6 million tons of steel.