AK Steel said that it expects to report a net loss of per diluted share for charges related to the previously announced temporary idling of the blast furnace and related steelmaking operations at its Works facility and an impairment charge on its investment in its discontinued insurance operations . The company said that it expects lower shipments in the fourth quarter compared to the third quarter principally due to the ongoing effects in the carbon steel spot market from what the company believes are unfairly traded steel imports.