Characteristics of new high-performance superduplex stainless steel wire lines, strands and wire ropes

摘要

Highly alloyed 25 percent chromium-, copper- and nitrogen-containing superduplex stainless steel has been widely, successfully applied in many different product forms for three decades. Demanding applications for such material are found in a wide range of industry sectors, and the high resistance to corrosion proven in offshore oil and gas, chemicals processing, pulp and paper, FGD (Flue Gas Desulphurisation), architecture and defence.High-performance strands (with strength up to over 50 percent greater than Type 316 steel) and wire ropes have now been developed in this grade of austenitic/ferritic steel and the benefits of using such material in a new form are possible for the first time. The basis for this development being the production of high strength/corrosion-resistant wires from Ferrinox~? 255 superduplex steel rod coil. The development and testing of Aminox~(TM) 255 strands of various constructions is described and application areas, such as the marine and chemical industries, architecture and mast rigging, are discussed.