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There are subtle composition differences between super duplex grades, but Ferralium is the only one to exceed a min. yield strength of 85ksi.
Improvements have been made to the composition, reducing impurities and associated inclusions, plus improved heat treatment.
Ferralium is the original super duplex stainless steel, developed by Langley Alloys throughout the 1960’s and a patent in 1967.
S32205 (F60) is produced to the upper end of the alloy specification of S31803 (F51), to give improved corrosion resistance.
Duplex stainless steel is produced through a multi-stage steelmaking and forming process route.
Due to it consisting of approximately 50% ferritic microstructure, duplex stainless steels are considered magnetic.
Ferralium is the world’s first super duplex stainless steel developed by Langley Alloys in 1967.
Super duplex stainless steels benefit from a combined microstructure of austenite and ferrite, which provides an optimum mix of properties.
The difference in properties between austenitic and duplex stainless steels is explained by their different microstructures.
Duplex, Super Duplex and Hyper Duplex have a combination of austenitic and ferritic microstructures, approximately 50:50.
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Up to 40 sizes per alloy available
More sizes equal less machining and a more cost-effective supply chain.
