High Presure Fittings Detail: Seamless or Welded Type Elbow Tee Reducer Cap, etc... Pressure Class & WT: SCH100/ SCH 120/ SCH140/ SCH 160/ XXS Max. WT 100mm Materials: Carbon Steel: ASTM A234-WPB,WPC, Stainless Steel: ASTM A403 WP304,WP304L,WP304H,WP316,WP316L,WP321,WP321H,WP347H,WP317, Duplex Steel: ASTM A815 S31803, 2205, S32750, S32760 Low Temp Steel: ASTM A420-WPL6,WPL3, Alloy Steel: ASTM A234-WP11,WP22,WP91 Size Range: Seamless DN15 ( 1/2’’ ) --- DN900 ( 36’’ ) Welded DN450 ( 18’’ ) --- DN2500 ( 100’’ )