USS-Posco Industries has named Leonard H. Chuderewicz president of the U.S.- Korean joint-venture company following the recent resignation of E.A. Roskovensky.

"I'm looking forward to the opportunity," Mr. Chuderewicz said in a telephone interview.USS-Posco is a joint venture between Pittsburgh, Pa.-based USX Corp. and Pohang Iron & Steel Co. of South Korea. USS-Posco is based in Pittsburg, Calif. The company recently completed a $400 million renovation program that gives it one of the most modern steel-processing plants in the world for sheet and tin plate products.

Mr. Chuderewicz's appointment becomes effective immediately. The executive has been plant manager at Double Eagle Steel Coating Co. since 1988. Double Eagle runs a steel plant in Dearborn, Mich., that handles electro-galvanizing of automotive steel products. Double Eagle is itself a joint venture of USX and Rouge Steel Co.

"In his recent Michigan assignment (Mr. Chuderewicz) has demonstrated the special skills required for effective management of a joint venture," Thomas C. Graham, president of the USS division of USX, said in a prepared statement.

Mr. Chuderewicz said his main goal is to produce as much quality product as the company can. He said he doesn't see much difference between working in an international joint venture and working in a domestic joint venture. While there will be different company and national cultures, "I don't see it being tremendously different," he said.

Mr. Chuderewicz is a native of Pittsburgh, Pa., and holds a bachelor's degree in electrical engineering from the University of Pittsburgh and a business degree from Duquesne University.

He joined USS as an operating trainee at the company's Irvin plant in Pennsylvania in 1971 and entered management the following year. In 1985, he was named division manager heading cold-reduction and sheet-finishin g operations. In 1988, he joined Double Eagle.

USS-Posco was formed in 1986, and the $400 million renovation was completed in April 1989.