F51 duplex stainless steel, ASTM A182 F51 Castings and forgings:bar, flange, casting valve parts etc * F44, F51, F53, F55,etc duplex stainless steel F51, ASTM ... explored by the company include Austenite stainless steel (CF8, CF3, CF8M, CF3M etc.), dual phase steel, alloy cast steel, stainless steel (LCA, LCB, LCC, CA6NM etc ...