Size 1/2 nb to 60 nb din standard nd, 900 lbs, 300 lbs, 600 lbs, 2500 lbs, 1500 lbs, In class 150 lbs, 6, 10, 16, 25, 40 etc. Details as stated by the international standard astm, Asme, Api, Aisi, Bs, Ansi, Din, Jis, Mssp, Nace materialsnickel alloy flanges with welded necks standard compliant with ASTM and ASME standards sb 564 / 160 / 472. Uns 10276, Hastelloy c 276 weld neck flange uns 2200, Nickel 200 weld neck flange uns 2201, Nickel 201 weld neck flange uns 4400, Monel 400 weld neck flange uns 8020, Alloy 20 weld neck flange uns 8825, Inconel 825 weld neck flange uns 6600, Inconel 600 weld neck flange uns 6601, Inconel 601 weld neck flange uns 6625, Inconel 625 weld neck flange copper alloy weld neck flanges astm / asme sb 61 / 62 / 151 / 152. C 70600 cu, Ni, 90/10 cupro nickel weld neck flange c 71500 cu, Ni, 70/30 copper nickel weld neck flange uns no. C 92200, Uns no. C 83600, Uns no. Uns no c 10100, C 10200, C 10300, C 10800, C 12000, C 12200 duplex steel weld neck flangesastm / asme a/sa 182 uns f 44, F 45, F51, F 53, F 55, F 60, F 61. Stainless steel weld neck flanges ss wnrf flanges astm sa 240 astm a182 grade f 304, 304l, 304h, 309s, 309h, 310s, 310h, 316, 316ti, 316h, 316l, 316ln, 317, 317l, 321, 321h, 347, 347h, 904l. Alloy steel weld neck flanges as wnrf flangesastm sa 182 f1/f5/f9/f11/f22/f91 carbon steel weld neck flanges cs wnrf flangesastma 105 gr. F42/46/52/56/60/65/70 low temperature carbon steel weld neck flanges ltcs wnrf flangesa350 lf2/a350 lf3 test certificatemill test certificate in alignment with en 10204 / 3. 1