ASME/ANSI/DIN/GOST/BS EN RF/FF/RJ 150#-2500# Carbon Steel /Stainless Steel /Alloy Steel Forged WN/SO/Threaded/Plate/Socket/Blind Flange 1.Material: Carbon steel A105/Rst37.2/C22.8/Q235 Stainless steel 304/304L,316/316L,321,ect. 2.Size:1/2"-48" 3.Pressure:150lbs-2500lbs PN0.6-PN16.0 4.Facing:RF/RJ/ FF 5.Standard:ANSI(ASME)16.5 16.47/DIN/JIS/UNI/... 6.Flanges of welding neck, socket welding, threaded, blind, slip on, lap joint are in accordance with ANSI 16.5 from 1/2" to 24" and classes 150 to 2500 (complete range). 7. Production process : raw material--cutting--heating--forging--heat treatment--maching--inspection.-washing-ex-working. 8. Certificate :ISO9001-2008 9. Used for : linepipe, heat exchanger, petroleum,chemical,power,gas,water,shipbuilding,construction,etc. 10.Blind, slip on, welding neck flanges are from 6 Bar to 40 Bar in accordance with DIN. 11.Flanges from 1/2" to 48" and up to 450 lbs are in accordance with BS10 Table D & Table E, BS Table F & Table H, BS Table J & Table K. 12.Flanges from 2kg to 210 kg are in accordance with JIS. 13.Flanges according to API 605/ASME B16.5/ASME B16.47 14.Depending on special purposes, flanges can be manufactured in different shapes and sizes 15. Excellent and high quality contro