Niagara Specialty Metals has acquired Pittsburgh Flatroll Co, effective April 1, for an undisclosed amount, according to the Akron, New York-based steel manufacturer’s top executive.

The acquisition caps a long-term business relationship between the two companies that began 20 years ago when Pittsburgh Flatroll closed its manufacturing facility, Robert Shabala, president and chief executive officer of Niagara Specialty Metals, told Fastmarkets. Since then, Niagara has been rolling Pittsburgh Flatroll’s specialized alloy products, he said.

Thomas Lomasney, Pittsburgh Flatroll’s general manager and vice president, will stay on temporarily as Niagara Specialty Metals assumes the direct marketing of the acquired company’s product line.

“He is going to work for us on an advisory basis to help make introductions and make sure the transition goes smoothly for our customers,” Shabala said.

Pittsburgh Flatroll produces ultra-high strength steels, nickel- and cobalt-based super alloys, and titanium for the aerospace, defense, power-generation, nuclear and other specialized industries.

Niagara Specialty Metals manufactures tool steels, high-speed steel, martensitic stainless steels and nickel iron alloys. It also provides conversion processing for titanium and other super alloys.