FERRALIUM 255 (UNS S32550, Alloy 255, DIN 1.4507, ASTM F61) alloy has many mechanical, chemical, and physical properties which confirm it as the super stainless steel of this present age. This illustration ‘highlights’ but one of them – its machinability. These valve cages in FERRALIUM 255 super duplex stainless steel have undergone almost every kind of machine-shop production operation. Being machined out of solid bar they reflect the superlative finish obtainable without specialised treatment, even where close dimensional tolerances are demanded.
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