WHAT IS DUPLEX STAINLESS STEEL?

There are various grades of stainless steel that are manufactured in mass scale today in the world. Among them, duplex stainless steel grades have been rising in popularity. The major stainless steel mills have now turned their attention towards producing more duplex stainless steel. Duplex steel gets its name from the fact that they have a two-phase microstructure that comprises of grains of ferritic and austenitic stainless steel. Upon melting, the duplex stainless steel solidifies from the liquid state to an entirely ferritic structure. As the heat escapes from the substance and the material begins to cool down gradually to room temperature, about 50% of the ferritic grains take the form ...

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