1.347H stainless steel flange 2.Size:1/2"-100",SCH5-160 3.Grade:310S,309S,316,316L321,304,317,317L,201,904L,Duplex. The ... ,F316H,F317,F317L,F347H,F310S,F310H,F321,F321H· Superaustenitic stainless steel:S31254· Duplex stainless steel· S31500,S31803(2205),S32304,S32205,S32760,S32750,HDR· Copper ... forging from round bar,CNC machining,Drilling and Passivating 347H stainless steel flange