Stainless steel (SS) flange specifications cover material grades like ASTM A182 F304/F304L and F316/F316L, dimensions per ASME B16. 5 or EN 1092-1, sizes from 1/2' to 48', and pressure ratings from Class 150 to 2500. Material Grades and Standards • ASTM / ASME A182: Standard for forged or rolled alloy and stainless steel pipe flanges, forged fittings, and valves for high-temperature service. • SS 304 / 304L: Standard general-purpose austenitic stainless steel; most economical and widely used for water and general industrial applications. • SS 316 / 316L: Contains molybdenum for enhanced resistance to chlorides, marine environments, and chemical processing. • Other Grades: SS 317L, SS 321, SS 347, and high-alloy 904L for specialized high-temperature or corrosive tasks. Dimensions and Design Standards • ASME / ANSI B16.5: Covers pipe flanges and flanged fittings from NPS 1/2' to 24' (for Class 150 through 2500). • ASME B16.47: Covers large diameter steel flanges from NPS 26' to 60' (Series A and B). • DIN / EN 1092-1: European metric standard specifications (Pressure nominal PN6, PN10, PN16, PN25, PN40, etc.). Pressure Classes & Face Types • Pressure Ratings: Class 150, 300, 600, 900, 1500, and 2500 (or PN equivalents). • Face Types: Raised Face (RF) for general applications, Flat Face (FF) for flat mating surfaces, and Ring Type Joint (RTJ) for high-pressure/high-temperature sealing. Common Flange Types • Weld Neck (WN): Long tapered hub, ideal for high pressure and severe temperature fluctuations. • Slip-On (SO): Slides over the pipe, easier to align and economical for low-pressure jobs. • Blind: Solid disk used to shut off a piping system or nozzle. • Socket Weld (SW): Recessed bore for small-diameter high-integrity piping. • Threaded (TH): Screwed onto matching pipe threads without requiring welds. • Lap Joint (LJ): Used with a stub end, great for systems needing frequent dismantling. If you'd like, let me know:The flange type and size (NPS) you needThe required pressure class or scheduleThe operating environment (temperature and media)I can help narrow down the precise dimensional and material specifications for your project.
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Stainless steel (SS) flange Stockist And Supplier In Ahmedabad Gujarat India
2026-08-21T18:35:43
Stainless steel (SS) flange specifications cover material grades like ASTM A182 F304/F304L and F316/F316L, dimensions per ASME B16. 5 or EN 1092-1, sizes from 1/2' to 48', and pressure ratings from Class 150 to 2500. Material Grades and Standards • ASTM / ASME A182: Standard for forged or rolled alloy and stainless steel pipe flanges, forged fittings, and valves for high-temperature service. • SS 304 / 304L: Standard general-purpose austenitic stainless steel; most economical and widely used for water and general industrial applications. • SS 316 / 316L: Contains molybdenum for enhanced resistance to chlorides, marine environments, and chemical processing. • Other Grades: SS 317L, SS 321, SS 347, and high-alloy 904L for specialized high-temperature or corrosive tasks. Dimensions and Design Standards • ASME / ANSI B16.5: Covers pipe flanges and flanged fittings from NPS 1/2' to 24' (for Class 150 through 2500). • ASME B16.47: Covers large diameter steel flanges from NPS 26' to 60' (Series A and B). • DIN / EN 1092-1: European metric standard specifications (Pressure nominal PN6, PN10, PN16, PN25, PN40, etc.). Pressure Classes & Face Types • Pressure Ratings: Class 150, 300, 600, 900, 1500, and 2500 (or PN equivalents). • Face Types: Raised Face (RF) for general applications, Flat Face (FF) for flat mating surfaces, and Ring Type Joint (RTJ) for high-pressure/high-temperature sealing. Common Flange Types • Weld Neck (WN): Long tapered hub, ideal for high pressure and severe temperature fluctuations. • Slip-On (SO): Slides over the pipe, easier to align and economical for low-pressure jobs. • Blind: Solid disk used to shut off a piping system or nozzle. • Socket Weld (SW): Recessed bore for small-diameter high-integrity piping. • Threaded (TH): Screwed onto matching pipe threads without requiring welds. • Lap Joint (LJ): Used with a stub end, great for systems needing frequent dismantling. If you'd like, let me know:The flange type and size (NPS) you needThe required pressure class or scheduleThe operating environment (temperature and media)I can help narrow down the precise dimensional and material specifications for your project.
2026-08-21T18:35:43
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