One of our strength materials are super austenitic stainless steel,we smelt F55 round,square bars,form them into seamless pipes,tubes,plates,sheets acc.to ASTM A789/A789M,ASTM A790/A790M,ASME SA789/SA-789M,ASME A789/SA789M ASTM A182/A182M,ASME SA-182/SA-182 super duplex F55 round,square bars,billets,forgings, A789/A789M tubings,pipings,A790/A790M seamless pipes,tubes