Features of ASME B16.5 Stainless Steel Flanges
● Excellent material: made of high quality stainless steel materials, such as 304, 304L, 316, 316L, etc., with excellent corrosion resistance and high temperature resistance.
● Variety of size specifications: ASME B16.5 standard covers flanges with nominal diameters from 1/2 inch to 24 inches (NPS 1/2 to NPS 24), including flange OD, ID, thickness, bolt hole diameters, and center distance and other key dimensions, and sets strict tolerance ranges.
● Variety of pressure classes: several pressure classes are defined, such as Class 150, 300, 600, 900, 1500 and 2500 lbs, corresponding to different maximum allowable working pressures.
● A wide range of flange types: covering a variety of common flange types, such as WN (Welding Neck), SO (Slip-On), BL (Blind), SW (Socket Weld), and LJ (Lap-Joint) flanges, etc., each of which has its own specific design features and applications. Each type has its specific design features and applications.
● Advanced Manufacturing Processes: The technical requirements of the forging, heat treatment, machining and welding processes are detailed to ensure that the structural integrity, corrosion resistance and strength of the flanges meet the requirements of use.
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ASME B16.5 Stainless steel flange Specification |
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Shape |
Weld Neck Flange ( WN),Slip-on Flange (SO), Threaded Flange (THD), Socket Weld Flange (SW), Blind Flange (BL),Lap Joint Flange (LAPJ), Plate flange (PL) |
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Size Range |
1/2″ – 48″/ DN15 – DN1200 |
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Pressure Rating |
Class 150, 300, 600, 900, 1500, 2500lb |
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Standard |
ASME B16.5, ASME B16.47 Series A/B, EN 1092-1, API 605, MSS SP-44, DIN 2627, DIN 2527, DIN 2558, DIN 2576, DIN 2641, DIN 2655, DIN 2656, DIN2573 |
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Carbon Steel |
ASTM A105 / A105N, ASTM A350 LF2/LF3, ASTM A694 F42 / 46 / 56 / 60 / 65, P235GH, P265GH, P280GH, P355GH |
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Alloy Steel |
ASTM A182 F11 / 12 / 5 / 9 / 91 / 92 |
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Stainless Steel |
ASTM A182 F304/304L/304H, 316/316L, 321, 310S, 317,347, 904L, 1.4404, 1.4437. |
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Duplex Stainless Steel |
ASTM A182 F51, F53, F44 |
Application Areas
ASME B16.5 stainless steel flanges are widely used in many fields such as petroleum, chemical, natural gas, electric power, pharmaceutical, food processing and so on. Especially in equipment and pipelines that require high corrosion resistance and high temperature strength, such as chemical equipment, heat exchangers, condensers, food processing equipment, etc., ASME B16.5 stainless steel flanges are favored because of their excellent performance.
