Super Duplex

What is the difference between sheet and plate?

A sheet is a thinner item of metal cut from a continuously rolled coil, whereas a plate is a thicker item rolled as a single piece.

What is the difference between the various super duplex alloys?

There are subtle composition differences between super duplex grades, but Ferralium is the only one to exceed a min. yield strength of 85ksi.

How has Ferralium developed over the years?

Improvements have been made to the composition, reducing impurities and associated inclusions, plus improved heat treatment.

How was Ferralium developed?

Ferralium is the original super duplex stainless steel, developed by Langley Alloys throughout the 1960’s and a patent in 1967.

For duplex grades, what is the difference between S31803 (F51) and S32205 (F60)?

S32205 (F60) is produced to the upper end of the alloy specification of S31803 (F51), to give improved corrosion resistance.

How is duplex stainless steel made?

Duplex stainless steel is produced through a multi-stage steelmaking and forming process route.

Is duplex stainless steel magnetic?

Due to it consisting of approximately 50% ferritic microstructure, duplex stainless steels are considered magnetic.

What is Ferralium?

Ferralium is the world’s first super duplex stainless steel developed by Langley Alloys in 1967.

What are super duplex stainless steels?

Super duplex stainless steels benefit from a combined microstructure of austenite and ferrite, which provides an optimum mix of properties.

What is the difference between austenitic and duplex stainless steels?

The difference in properties between austenitic and duplex stainless steels is explained by their different microstructures.

What are duplex stainless steels?

Duplex, Super Duplex and Hyper Duplex have a combination of austenitic and ferritic microstructures, approximately 50:50.

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