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As we celebrate 90 years since duplex stainless steel was developed, we caught up with Erik Schedin. He recently retired as design and fabrication manager at our Avesta Research Center in Sweden and he shares his insight into construction and fabrication of duplex grades as well as developing formable duplex grades.

Duplex stainless steel has been important to the pulp and paper industry since the early 1930s when the first grades were developed by Outokumpu. It is used in many applications from preparation of wood chips to paper making.