Alloy steel flanges
Royal Business is a trusted distributor and supplier of Alloy Steel and Sanicro 28 (Alloy 28 / UNS N08028 / DIN 1.4563) Flanges, sourced from reputed manufacturers and supplied in compliance with international standards. We offer a complete range of flange types including Threaded, Slip-On, Socket Weld, Blind, Lap Joint, Weld Neck, Reducing, and Plate Flanges as per ASME and DIN specifications.
Our alloy steel flanges are available in various sizes, thicknesses, and pressure classes to meet diverse industrial requirements. We supply alloy steel flange grades such as ASTM / ASME A182 F5, F9, F11, F12, F22, and F91, widely used in industries like oil & gas, petrochemicals, power plants, chemical processing, and heavy engineering. With consistent quality, dependable sourcing, and timely delivery, Royal Business serves as a reliable partner for alloy steel flange solutions
Alloy 28 Flanges Specification
| Standard | ANSI Flanges, ASME Flanges, API, MSSP, BS Flanges, DIN Flanges, EN Flanges, NACE etc. |
| Size | 1/2″ (15 NB) to 48″ (1200NB) |
| Dimensions | ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc |
| Grade | ASTM / ASME A 182 GR F 5, F 9, F 11, F 12, F 22, F 91. |
| Pressure Ratings | 150#, 300#, 400#, 600#, 900#, 1500# & 2500#. PN6, PN10, PN16, PN25, PN40, PN64 etc. |
| Form | Slip on Flanges – SORF, Weld neck Flanges – WNRF, Socket weld Flanges – SWRF, Blind Flanges – BLRF Lapped joint Flanges, Screwed Flanges, Long weld neck Flanges, Reducing Flanges, Spectacle Flanges, Ring joint Flanges |
Types Of Alloy Steel Flanges
| Forged Flanges | Slip-on Raised Face Flanges (SORF) |
| Blind Raised Face Flanges (BLRF) | Weld Neck Raised Face Flanges (WNRF) |
| Socket Weld Raised Face Flanges (SWRF) | Screwed/Threaded Flanges |
| Orifice Flanges | Spectacle Blind Flanges |
| Reducing Flanges | Ring Type Joint Flanges |
| Tongue & Groove Flanges | Plate Flanges |
| Flat Face Flanges | ANSI / ASME / ASA B16.5 Flanges |
| EN 1092-1 Flanges | DIN Flanges |
| BS 10 Flanges | BS 4504 Flanges |
| JIS STD Flanges |