... flange,ansi flange,tube flange for pipe joint 2.1/2'' to 60'' 3.high quality 4.T/T,L/C ... ,carbon steel,alloy steel 3. Size range: From ½” up to 60” "4. Schedule:SCH STD, XS, XXS, SCH 10 ~ ... ScheduleSCH STD, XS, XXS, SCH 10 ~ SCH 160Material Code:1 CARBON STEELASTM A234 WPB, WPC; ASTM A420 WPL9, WPL3, ... WPL6, WPHY-42WPHY-46, WPHY-52, WPHY-60, WPHY-65, WPHY-70,2 ALLOY STEELASTM A234 WP1, WP11 ...