... Name : Heavy Forged Carbon Steel Flange2)Material: Carbon Steel, Alloy Steel, Stainless Steel Carbon steel: AISI 1020,1035,1045,1046 ... ,GrD,Gr65,Gr50… Alloy Steel: AISI 1053,1551,A387Cr.12,4137,4140,4340,431 ... ANSI ASTM 304,S30400,304L,S30403,316,S31600,316L,S316033)Specification: OD350-5000mmID100-4800mmHeight45-650mmWeight200-6000kg4)Forging Process:Raw Material Purchase ...