Size : 1/8" NB TO 48"NB. Alloy Steel : ASTM A 182, GR F1, F5, F6, F9, F7, ... GR F1, F5, F6, F9, F7, F11, F12, F21, F22 Stainless Steel : 304,304H,304L,310,310 S,321,321H, 316Ti,316H ... ,316L, 347,347H, Duplex Steel , UNS S 31803, 2205 , Super Duplex Steel , UNS S 32750Nickel Alloys : Monel 400 & ... .023.9163.57636.57636.57688.936.576143.764144.526128.27-- 904L stainless steel forge flange