WEST CHESTER, Ohio — AK Steel announced Wednesday that the No. 5 electric arc furnace at the Butler Works, which was damaged July 1 when molten steel leaked out of it, will be restarted by the end of September.

Alan McCoy, AK’s spokesman, said the leak damaged the furnace and some of the surrounding components, but not the building itself. No one was injured in the incident.

The company restarted other Butler Works furnaces within 24 hours and production has not been affected, McCoy said.

In other news, AK Steel’s board of directors has declared a quarterly cash dividend of 5 cents per share of common stock, payable on Sept. 9, 2011, to shareholders of record on Aug. 15, 2011.

The board also reported a net income of $33.1 million, or 30 cents per diluted share of common stock, for 2011’s second quarter, compared to net income of $26.7 million, or 24 cents per diluted share, for the second quarter of 2010.

Net sales for the 2011 second quarter were $1.79 million on shipments of 1.49 million tons, compared to sales of $1.59 million on shipments of 1.44 million tons for the year-ago second quarter.

The company said its average selling price for the second quarter of 2011 was $1,185 per ton, a 7 percent increase over the $1,109 per ton in the first quarter of 2011, and about 8 percent higher than the $1,101 per ton in the second quarter of 2010.

The company reported an operating profit for the second quarter of 2011 of $68.5 million, or $46 per ton, compared to an operating profit of $65.6 million, or $45 per ton, for the second quarter of 2010.