These Flat Face flange has a gasket facade in the similar plane as the bolting circle face. However, appliances using flat face flanges are commonly those in which the mating flange is being made up from a casting. Meanwhile, Flat face flanges are by no means to be bolted to a raised face flange.
| Size | : | 1/8" NB TO 48"NB. |
| Standards | : | ASTM A182 - ASME SA182, ASME B16.5, ASME B16.36, ASME B16.47. |
| DIN | : | IN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2656, DIN2627, DIN2628, DIN2629, DIN 2631, DIN2632, DIN2633, DIN2634, DIN2635, DIN2636, DIN2637, DIN2638, DIN2673 |
| B.S | : | BS4504, BS4504, BS1560, BS10 |
| Class | : | 150#, 300#,400#,600#,900#, 1500# & 2500#. |
| Material of Construction | Standard | Grades |
| Stainless Steel Flat Face Flanges | ASTM A182 , A240 | F 304, 304L, 304H, 316, 316Ti, 316H, 316L, 316LN, 309S, 309H, 310S, 310H,317, 317L, 321, 321H, 347, 347H, 201, 202, 904L |
| Carbon Steel Flat Face Flanges | ASTM A105 | Gr. F42,46,52,56,60,65,70 |
| Alloy Steel Flat Face Flanges |
ASTM A182 | F1,F5,F9,F11,F22,F91 |
| Copper Alloys Flat Face Flanges | ASTM SB 61 , SB62 , SB151 , SB152 | UNS No. C 70600 (Cu-Ni 90/10), C 71500 (Cu-Ni 70/30), UNS No. C 10100, 10200, 10300, 10800, 12000, 12200, |
| Nickel Alloy Flat Face Flanges |
ASTM SB564, SB160, SB472, SB162 | Nickel 200 (UNS No. N02200), Nickel 201 (UNS No. N02201), Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500), Inconel 800 (UNS No. N08800), Inconel 825 (UNS No. N08825), Inconel 600 (UNS No. N06600), Inconel 625 (UNS No. N06625), Inconel 601 (UNS No. N06601), Hastelloy C 276 (UNS No. N10276), Alloy 20 (UNS No.N08020), |
| Duplex & Super Duplex Steel Flat Face Flanges |
ASTM A182, A240 | UNS S31803, UNS S32205, UNS S32750, UNS S32950 UNS F 44, F 45, F51, F 53, F 55, F 60, F 61 |
| Low Temperature Carbon Steel Flat Face Flanges | ASTM A350 | LF2 , LF3 |
| ASTM A105 Gr. F42 Flat Face Flanges | ASTM A105 Gr. F46 Flat Face Flanges |
| Carbon Steel ASTM A105 Gr. F52 Flat Face Flanges | Carbon Steel ASTM A105 Gr. F56 Flat Face Flanges |
| ASTM A105 Gr. F60 Flat Face Flanges | ASTM A105 Gr. F65 Flat Face Flanges |
| Carbon Steel ASTM A105 Gr. F70 Flat Face Flanges | Carbon Flat Face Flanges |
| Carbon A105 Flat Face Flanges | Carbon Steel Flat Face Flanges |
| ASTM A182 Gr. F1 Flat Face Flanges | ASTM A182 Gr. F5 Flat Face Flanges |
| Alloy Steel ASTM A182 Gr. F9 Flat Face Flanges | Alloy Steel ASTM A182 Gr. F11 Flat Face Flanges |
| ASTM A182 Gr. F22 Flat Face Flanges | ASTM A182 Gr. F91 Flat Face Flanges |