Big Forgings Material:Stainless steel ANSI ASTM 304,S30400 304L,S30403,316,S31600,316L,S31603 ... :100-4800mm 1)Name : Heavy Forged Carbon Steel Flange2)Material: Carbon Steel, Alloy Steel, Stainless Steel Carbon steel: AISI 1020,1035,1045,1046,GrD,Gr65,Gr50 ... good reply. We will try our best to satified you. Big Forgings Flange in Stainless Steel