ASME B16.5:2025
Current
Current
The latest, up-to-date edition.
Pipe Flanges and Flanged Fittings: NPS 1/2 through NPS 24, Metric/Inch Standard
Available format(s)
PDF
Language(s)
English
Published date
30-05-2025
Publisher
€284.35
Excluding VAT
This Standard covers pressure–temperature ratings, materials, dimensions, tolerances, marking, testing, and methods of designating openings for pipe flanges and flanged fittings.
| DocumentType |
Test Method
|
| ISBN |
9780791876855
|
| Pages |
274
|
| PublisherName |
American Society of Mechanical Engineers
|
| Status |
Current
|
| Supersedes |
| ASTM A 449 : 2007 | Standard Specification for Hex Cap Screws, Bolts and Studs, Steel, Heat Treated, 120/105/90 ksi Minimum Tensile Strength, General Use |
| MSS SP-9:2024 | Spot Facing for Bronze, Iron, and Steel Flanges |
| ANSI/MSS SP-25-2018 | Standard Marking System for Valves, Fittings, Flanges, and Unions |
| ASME B1.20.1 : 1983 | PIPE THREADS, GENERAL PURPOSE (INCH) |
| ASTM A 106/A106M : 2015 | Standard Specification for Seamless Carbon Steel Pipe for High-Temperature Service |
| ASTM B 127 : 2019 | Standard Specification for Nickel-Copper Alloy Plate, Sheet, and Strip |
| NFPA 13R:2025 | Standard for the Installation of Sprinkler Systems in Low-Rise Residential Occupancies |
| ASTM B 462 : 2018 | Standard Specification for Forged or Rolled Nickel Alloy Pipe Flanges, Forged Fittings, and Valves and Parts for Corrosive High-Temperature Service |
| ASTM B 166 : 2008 | Standard Specification for Nickel-Chromium-Iron Alloys (UNS N06600, N06601, N06603, N06690, N06693, N06025, N06045, and N06696)* and Nickel-Chromium-Cobalt-Molybdenum Alloy (UNS N06617) Rod, Bar, and Wire |
| NFPA 54 : 2015 | NATIONAL FUEL GAS CODE |
| ASTM B 434 : 2022 | Standard Specification for Nickel-Molybdenum-Chromium-Iron Alloys Plate, Sheet, and Strip |
| ASTM B 164 : 2003 : R2019 | Standard Specification for Nickel-Copper Alloy Rod, Bar, and Wire |
| ASTM A 354 : 2017 | Standard Specification for Quenched and Tempered Alloy Steel Bolts, Studs, and Other Externally Threaded Fasteners |
| ISO 9002:1987 | Quality systems — Model for quality assurance in production and installation |
| MSS SP-6 : 2021 | Standard Finishes for Contact Faces of Pipe Flanges and Connecting-End Flanges of Valves and Fittings |
| ASTM A 105/A105M : 2023 | Standard Specification for Carbon Steel Forgings for Piping Applications |
| ASTM B 425 : 2019 | Standard Specification for Nickel-Iron-Chromium-Molybdenum-Copper Alloys Rod and Bar |
| ASTM B 408 : 2022 | Standard Specification for Nickel-Iron-Chromium Alloy Rod and Bar |
| MSS SP 45 : 2020 | Drain and Bypass Connections |
| ASTM B 424 : 2019 | Standard Specification for Nickel-Iron-Chromium-Molybdenum-Copper Alloys Plate, Sheet, and Strip |
| ASTM A 350/A350M : 2024 | Standard Specification for Carbon and Low-Alloy Steel Forgings, Requiring Notch Toughness Testing for Piping Components |
| ASTM A 995/A995M : 2020 | Standard Specification for Castings, Austenitic-Ferritic (Duplex) Stainless Steel, for Pressure-Containing Parts |
| ASTM B 446 : 2023 | Standard Specification for Nickel-Chromium-Molybdenum-Niobium Alloy, Nickel-Chromium-Molybdenum-Silicon Alloy, and Nickel-Chromium-Molybdenum-Tungsten Alloy Rod and Bar |
| ASTM B 435 : 2022 | Standard Specification for Heat and Corrosion Resistant High Temperature Alloy Plate, Sheet, and Strip |
| NACE TR5A171:2022 | Materials for Storing and Handling Commercial Grades of Aqueous Hydrofluoric Acid and Anhydrous Hydrogen Fluoride |
| ASME B1.20.1 : 2013(R2018) | PIPE THREADS, GENERAL PURPOSE (INCH) |
| ISO 9000-2:1997 | Quality management and quality assurance standards — Part 2: Generic guidelines for the application of ISO 9001, ISO 9002 and ISO 9003 |
| API 620 : 2002 | DESIGN AND CONSTRUCTION OF LARGE, WELDED, LOW-PRESSURE STORAGE TANKS |
| ASTM B 160 : 2024 | Standard Specification for Nickel Rod and Bar |
| ASTM B 564 : 2022 | Standard Specification for Nickel Alloy Forgings |
| ASTM A 216/A216M : 2012 | Standard Specification for Steel Castings, Carbon, Suitable for Fusion Welding, for High-Temperature Service |
| ASTM A 537/A537M : 2020 | Standard Specification for Pressure Vessel Plates, Heat-Treated, Carbon-Manganese-Silicon Steel |
| ASTM B 573 : 2024 | Standard Specification for Nickel-Molybdenum-Chromium-Iron Alloys Bar or Rod |
| ASTM B 473 : 2024 | Standard Specification for Nickel-Iron-Chromium-Molybdenum-Copper Alloy Bar and Wire (Withdrawn 2026) |
| ASTM A 453/A453M : 2015 | Standard Specification for High-Temperature Bolting, with Expansion Coefficients Comparable to Austenitic Stainless Steels |
| ASTM A 515/A515M : 2010 | Standard Specification for Pressure Vessel Plates, Carbon Steel, for Intermediate- and Higher-Temperature Service |
| ISO 9001:2015 | Quality management systems — Requirements |
| ASTM A 320/A320M : 2021 | Standard Specification for Alloy-Steel and Stainless Steel Bolting for Low-Temperature Service |
| ASME B16.34 : 2017 | VALVES - FLANGED, THREADED, AND WELDING END |
| ASME B46.1 : 2019 | Surface Texture (Surface Roughness, Waviness, and Lay) |
| ISO 9003:1994 | Quality systems — Model for quality assurance in final inspection and test |
| ASTM A 307 : 2010 | Standard Specification for Carbon Steel Bolts and Studs, 60 000 PSI Tensile Strength |
| API 682:2004 | PUMPS - SHAFT SEALING SYSTEMS FOR CENTRIFUGAL AND ROTARY PUMPS |
| ASTM A 240/A240M : 2025 | Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications |
| ASTM A 540/A540M : 2015 | Standard Specification for Alloy-Steel Bolting for Special Applications |
| ASTM A 193/A193M : 2020 | Standard Specification for Alloy-Steel and Stainless Steel Bolting for High Temperature or High Pressure Service and Other Special Purpose Applications |
| ASTM B 443 : 2019 | Standard Specification for Nickel-Chromium-Molybdenum-Columbium Alloy and Nickel-Chromium-Molybdenum-Silicon Alloy Plate, Sheet, and Strip |
| MSS SP-61 : 2019 | Pressure Testing of Valves |
| ASTM A 194/A194M : 2020 | Standard Specification for Carbon Steel, Alloy Steel, and Stainless Steel Nuts for Bolts for High Pressure or High Temperature Service, or Both |
| ISO 9000-1:1994 | Quality management and quality assurance standards — Part 1: Guidelines for selection and use |
| ISO 9000-3:1997 | Quality management and quality assurance standards — Part 3: Guidelines for the application of ISO 9001:1994 to the development, supply, installation and maintenance of computer software |
| MSS SP 44 : 2010 | STEEL PIPELINE FLANGES |
| ASTM A 387/A387M : 2011 | Standard Specification for Pressure Vessel Plates, Alloy Steel, Chromium-Molybdenum |
Frequently Asked Questions
ASME B16.5 is published by American Society of Mechanical Engineers (ASME). It is a United States standard.
ASME B16.5 specifies dimensions, ratings, materials, testing or end preparations for piping components covered by the cited ASME B16 standard. In practice it is applied by piping designers, manufacturers, fabricators and purchasers specifying standardised pressure components.
No — ASME B16.5 is a United States standard published by American Society of Mechanical Engineers (ASME), with its listed region as United States.
ASME B16.5 is used by piping designers, manufacturers, fabricators and purchasers specifying standardised pressure components. It is a United States standard published by American Society of Mechanical Engineers (ASME).
ASME B16.5 specifies dimensions, ratings, materials, testing or end preparations for piping components covered by the cited ASME B16 standard. It is a United States standard published by American Society of Mechanical Engineers (ASME).
Summarise
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