... in accordance with ANSI B 16.5 from 1/2" to 24" and classes 150 to 2500 ( ... 2" to 24" and up to 450 lbs are in accordance with BS10 Table D & Table E, BS Table F & Table H, BS Table J & Table K ... on,Welding Neck.Thread,Socket weld,Blind3. Size:1/2-78 inch (DN15-DN2000)4. Material:Carbon steel ... : A105,SS400,SF440 RST37.2,S235JRG2,P250GH,C22.85. Surface TreatmentAnti-rust Oil, ...