... CL1/CL2, LF3 CL1/CL2,ASTM A694 F42, F46,F48, F50, F52, F56, F60, F65, F70(Stainess Steel): ASTM A182 F304 ... CL1/CL2, LF3 CL1/CL2,ASTM A694 F42, F46,F48, F50, F52, F56, F60, F65, F70(Stainess Steel): ASTM A182 F304 ... only low prices!You will get our quick reply! ANSI B 16.5 Flange