We are offering stainless steel flanges. Range: 15 nb up to 1500 nb in 150 lbs, 300 lbs, 600 lbs, 900 lbs, 1500 lbs, 2500 lbs available with nace mr 01-75 form: v socket weld v slip on v blind v lapped v screwed stainless steel standard: astm / asme a/sa 182 grade: f 304, 304l, 304h, 309s, 309h, 310s, 310h, 316, 316ti, 316h, 316l, 316ln, 317, 317l, 321, 321h, 347, 347h, 904l. nickel alloy standard: astm / asme sb 564 / 160 / 472 grade: uns 2200 (nickel 200), uns 4400 (monel 400), uns 8825 (inconel 825), uns 6600 (inconel 600). uns 6601 (inconel 601), uns 6625 (inconel 625), uns 10276 (hastelloy c276), uns 2201 (nickel 201), (alloy 20 / 20 cb 3) carbon steel standard: astm / asme a/sa 105 / 350 lf 2 alloy steel standard: astm / asme a/sa 182 grade: f 5, f 9, f 11, f 12, f 22, f 91. copper alloy, standard: astm / asme sb 61 / 62 / 151 / 152. grade: uns no. C92200, uns no. C 83600, uns no. 70600, 71500, c70600 (cu-ni- 90/10), c71500, cu-ni- 70/30), uns no. C 10100, c 10200, c 10300, c10800, c 12000, c 12200. duplex steel standard: astm / asme a/sa 182 grade: f 5, f 9, f 11, f 12, f 22, f 91.