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Flat Face Flange
Flat Face Flanges Manufacturers, Exporters & Suppliers in India.
High Quality Flat Face Flanges, Alloy Steel Flat Face Flanges, Carbon Steel Flat Face Flanges, Hastelloy Flat Face Flanges, Alloy 20 Flat Face Flanges, Titanium Flat Face Flanges, Inconel Flat Face Flanges, Monel Flat Face Flanges.
Stainless Steel, Alloy Steel, Carbon Steel, Duplex steel, Copper Nickel Alloy, Hastelloy, Titanium, Alloy 20, Monel & Inconel Flat Face Flanges.
The Flat Face (FF) flange has a gasket surface in the same plane as the bolting circle face. Applications using flat face flanges are frequently those in which the mating flange or flanged fitting is made from a casting. Flat face flanges are never to be bolted to a raised face flange. ASME B31.1 says that when connecting flat face cast iron flanges to carbon steel flanges, the raised face on the carbon steel flange must be removed, and that a full face gasket is required. This is to keep the thin, bittle cast iron flange from being sprung into the gap caused by the raised face of the carbon steel flange.
| Material of Construction | Standard | Grades |
| Stainless Steel Long Neck 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 Long Neck Flanges | ASTM A105 | Gr. F42,46,52,56,60,65,70 |
| Alloy Steel Long Neck Flanges | ASTM A182 | F1,F5,F9,F11,F22,F91 |
| Nickel Alloy Long Neck 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), |
| Copper Alloys Long Neck 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, |
| Low Temperature Carbon Steel Long Neck Flanges | ASTM A350 | LF2 , LF3 |
| Duplex Steel Long Neck Flanges | ASTM A182, A240 | UNS F 44, F 45, F51, F 53, F 55, F 60, F 61 |
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