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	ASME B16.5 Pipe Flanges and Flanged Fittings NPS ½ through NPS 24 Metric/Inch Standard Buy ASME Collections Online subscriptions to multiple documents on various subjects Info To speak with an IHS Subject Matter Expert call 1-888-752-0334, outside the US/Canada call 303-397-2892. More Top ASME Standards...

ASME B16.5 - Pipe Flanges and Flanged Fittings NPS ½ through NPS 24 Metric/Inch Standard

Date of Issuance: Nov. 28, 2003

Scope
(a) This Standard covers pressure-temperature ratings, materials, dimensions, tolerances, marking, testing, and methods of designating openings for pipe flanges and flanged fittings. Included are:

1. flanges with rating class designations 150, 300, 400, 600, 900, 1500, and 2500 in sizes NPS ½ through NPS 24, with requirements given in both metric and US. Customary units with diameter of bolts and flange bolt holes expressed in inch units
2. flanged fittings with rating class designation 150 and 300 in sizes NPS ½ through NPS 24, with requirements given in both metric and U.S. Customary units with diameter of bolts and flange bolt holes expressed in inch units
3. flanged fittings with rating class designation 400, 600, 900, 1500, and 2500 in sizes NPS ½ through NPS 24 that are acknowledged in Annex G in which only U.S. Customary units are provided

(b) This Standard is limited to

1. flanges and flanged fittings made from cast or forged materials
2. blind flanges and certain reducing flanges made from cast, forged, or plate materials

Also included in this Standard are requirements and recommendations regarding flange bolting, flange gaskets, and flange joints.

References

The following is a list of standards and specifications referenced in this Standard, showing the year of approval. Products covered by each ASTM specification are listed for convenience. (See specifications for exact titles and detailed contents.)

ASME Publications

• ASME B1.l-1989 (R2001), Unified Inch Screw Threads (UN and UNR Thread Form)
• ASME 81.20.1-1983 (R2001), Pipe Threads, General Purpose (Inch)
• ASME B16.20-1998, Metallic Gaskets for Pipe Flanges-Ring Joint, Sprial-Wound and Jacketed
• ASME B16.21-1992, Nonmetallic Flat Gaskets for Pipe Flanges
• ASME B16.25-1997, Buttwelding Ends
• ASME B16.34-2002, Valve-Flanged, Threaded, and Welding End
• ASME B18.2.1-1996, Square and Hex Bolts and Screws-Inch Series
• ASME B18.2.2-1987 (R1999), Square and Hex Nuts (Inch Series)
• ASME PCC-1-2000, Guidelines for Pressure Boundary Bolted Flange Joint Assembly
• ASME B36.10M-2000, Welded and Seamless Wrought Steel Pipe
• ASME B46.1-2002, Surface Texture (Surface Roughness, Waviness, and Lay)

ASME (ASME Boiler and Pressure Vessel Code, 2001)

• Section I, Power Boilers
• Section II, Materials
• Section III, Rules for Construction of Nuclear Power Plant Components
• Section VIII, Div. 1 and 2, Pressure Vessels
• Section IX, Welding and Brazing Qualifications

ASTM International

• ASTM A 105-2001, Carbon Steel Forgings for Piping Components
• ASTM A 106-1999e1, Seamless Carbon Steel Pipe for High-Temperature Service
• ASTM A 182-2001e1, Forged or Rolled Alloy-Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High Temperature Service
• ASTM A 193-200113, Alloy-Steel and Stainless Steel Bolting Materials for High-Temperature Service
• ASTM A 194-2001a, Carbon and Alloy Steel Nuts for Bolts for High-pressure and High-Temperature Service, or Both
• ASTM A 203-1997, Pressure Vessel Plates, Alloy Steel, Nickel
• ASTM A 204-1993 (R1999), Pressure Vessel Plates, Alloy Steel, Molybdenum
• ASTM A 216-1993 (1998), Steel Castings, Carbon, Suitable for Fusion Welding, for High-Temperature Service
• ASTM A 217-2002, Steel Castings, Martensitic Stainless and Alloy, for Pressure Containing Parts, Suitable for High-Temperature Service
• ASTM A 240-2002, Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
• ASTM A 307-2000, Carbon Steel Bolts and Studs, 60,000 psi Tensile Strength
• ASTM A 320-2001, Alloy/Steel Bolting Materials for Low-Temperature Service
• ASTM A 350-2000c Carbon and Low-Alloy Steel Forgings, Requiring Notch Toughness Testing for Piping Components
• ASTM A 351-2000, Castings, Austenitic, Austenitic-Ferritic (Duplex), for Pressure Containing Parts
• ASTM A 352-1993 (R1998), Steel Castings, Ferritic and Martensitic, for Pressure-Containing Parts, Suitable for Low-Temperature Service
• ASTM A 354-2001, Quenched and Tempered Alloy Steel Bolts, Studs and Other Externally Threaded Fasteners
• ASTM A 387-1999e1, Pressure Vessel Plates, Alloy Steel, Chromium-Molybdenum
• ASTM A449-2000, Quenched and Tempered Steel Bolts and Studs
• ASTM A 453-2000e1, High-Temperature Bolting Materials, with Expansion Coefficients Comparable to Austenitic Stainless Steels
• ASTM A 515-2001, Pressure Vessel Plates, Carbon Steel, for Intermediate- and Higher- Temperature Service
• ASTM A 516-2001, Pressure Vessel Plates, Carbon Steel, For Moderated- and Lower- Temperature Service
• ASTM A 537-1995 (R2000), Pressure Vessel Plates, Heat-Treated, Carbon-Manganese-Silicon-Steel
• ASTM A 540-2000, Alloy-Steel Bolting Materials for Special Applications
• ASTM B 127-1998, Nickel-Copper Alloy (UNS N04400) Plate, Sheet, and Strip
• ASTM B 160-1999, Nickel Rod and Bar
• ASTM B 162-1999, Nickel Plate, Sheet and Strip
• ASTM B 164-1998, Nickel-Copper Alloy Rod, Bar, and Wire
• ASTM B 166-2001, Nickel-Chromium-Iron Alloys (UNS N06600, N06601, N06603, N06690, N06693, N06025, and N06045) and Nickel-Chromium-Cobalt-Molybdenum Alloy (UNS N06617) Rod, Bar, and Wire
• ASTM B 168-2001, Nickel-Chromium-Iron Alloys (UNS N06600, N06601, N06603, N06690, N06693, N06025, and N06045)) and Nickel-Chronnium-Cobalt-Molybdenum Alloy (UNS N06617) Plate, Sheet, and Strip
• ASTM B 333-1998, Nickel-Molybdenum Alloy Plate, Sheet, and Strip
• ASTM B 335-2001, Seamless Ferritic Alloy-Steel Pipe for High Temperature Service
• ASTM B 408-2001, Nickel-Iron-Chromium Alloy Rod and Bar
• ASTM B 409-2001, Nickel-Iron-Chromium Alloy, Plate, Sheet, Strip
• ASTM B 424-1998a, Ni-Fe-Cr-Mo-Cu Alloy (UNS NO8825 and N08821) Plate, Sheet, and Strip
• ASTM B 425-1999, Ni-Fe-Cr-Mo-Cu Alloy (UNS NO8825 and UNS N08221) Rod and Bar
• ASTM B 434-2000, Nickel-Molybdenum-Chromium-Iron Alloys (UNS N10003, UNS N10242) Plate, Sheet, and Strip
• ASTM B 435-1998a, UNS N06002, UNS N06230, UNS N12160, and UNS R30556 Plate, Sheet, and Strip
• ASTM B 443-2000e1, Nickel-Chromium-Molybdenum-Columbium Alloy (UNS N06625) and Nickel-Chromium-Molybdenum-Silicon Alloy (UNS N06219) Plate,
• ASTM Sheet, and Strip
• ASTM B 446-2000e1, Nickel-Chromium-Molybdenum-Columbium Alloy (N06625), Nickel-Chromium-Molybdenum-Silicon Alloy (UNS N06219) Rod and Bar, and Nickel-Chromium-Molybdenum-Tungsten Alloy (UNS N06650) Rod and Bar
• ASTM B 462-2000a, Forged or Rolled UNS N06030, UNS N06022, UNS N06200, UNS N08020, UNS N08024, UNS N08026, UNS N08367, UNS N10276, UNS N10665, UNS N10675 and UNS R20033 Alloy Pipe Flanges, Forged Fittings and Valves and Parts for Corrosive High-Temperature Service
• ASTM B 463-1999, UNS N08020, UNS N08024, and UNS NO8026 Alloy Plate, Sheet, and Strip B 473-1996, UNS N08020, UNS N08024, and UNS NO8026 Nickel Alloy Bar and Wire
• ASTM B 51 1-2001, Nickel-Iron-Chromium-Silicon Alloy Bars and Shapes
• ASTM B 536-1995 Nickel-Iron-Chromium-Silicon Alloy (UNS NO8330 and N08332) Plate, Sheet, and Strip
• ASTM B 564-2000a, Nickel Alloy Forgings
• ASTM B 572-1998a, UNS N06002, UNS N06230, UNS N12160, and UNS R30556 Rod
• ASTM B 573-2000, Nickel-Molybdenum-Chromium-Iron Alloy (UNS N10003, N10242) Rod
• ASTM B 574-1999a, Low-Carbon Nickel-Molybdenum-Chromium, Low-Carbon Nickel-Chromium-Molybdenum, Low Carbon Nickel Molybdenum-Chromium-Tantalum, Low-Carbon Nickel Chromium-Molybdenum-Copper, Low-Carbon Nickel-Chromium-Molybdenum-Tungsten Alloy Rod
• ASTM B 575-1999a, Low-Carbon Nickel-Molybdenum-Chromium, Low-Carbon Nickel-Chromium-Molybdenum, Low-Carbon Nickel-Chromium Molybdenum-Copper, Low-Carbon Nickel-Chromium-Tantalum, Low-Carbon Nickel-Chromium-Molybdenum-Tungsten Alloy Plate, Sheet, and Strip
• ASTM B 581-1997, Nickel-Chromium-Iron-Molybdenum-Copper Alloy Rod
• ASTM B 582-1997, Nickel-Chromium-Iron-Molybdenum-Copper Alloy Plate, Sheet, and Strip
• ASTM B 599-1992 (R1997), Nickel-Iron-Chromium-Molybdenum-Columbium Stabilized Alloy (UNS N08700) Plate, Sheet, and Strip
• ASTM B 620-1998a, Nickel-Iron-Chromium-Molybdenum Alloy (UNS N08320) Plate, Sheet, and Strip
• ASTM B 621-1995a, Nickel-Iron-Chromium-Molybdenum Alloy (UNS N08320) Rod
• ASTM B 625-1999, UNS N08904, UNS N08925, UNS N08031, UNS N08932, UNS N08926, and UNS R20033 Plate, Sheet, and Strip
• ASTM B 649-1995, Ni-Fe-Cr-Mo-Cu Low Carbon Alloy (UNS N08904) and Ni-Fe Cr-Mo-Cu-N Low Carbon Alloys (UNS N08925, UNS N08031, and UNS N08926), and Cr-Ni-Fe-N Low-Carbon Alloy (UNS R20033) Bar and Wire
• ASTM B 672-1995, Nickel-Iron-Chromium-Molybdenum-Columbium Stabilized Alloy (UNS N08700) Bar and Wire
• ASTM B 688-1996, Chromium-Nickel-Molybdenum-Iron (UNS NO0366 and UNS N08367) Plate, Sheet, and Strip
• ASTM E 29-1993a (1999), Using Significant Digits in Test Data to Determine Conformance with Specifications

ISO (International Organization for Standardization)

• IS0 9000-1:1994, Quality management and quality assurance standards - Part 1: Guidelines for selection and use
• IS0 9000-2:1997, Quality management and quality assurance standard - Part 2: Generic guidelines for the application of IS0 9001, IS0 9002m and IS0 9003
• IS0 9000-3:1997, Quality management and quality assurance standards - Part 3: Guidelines for the application of IS0 9001 to the development, supply and maintenance of software
• IS0 9000-4:1993, Quality management and quality assurance standards - Part 4: Guide to Dependability programme management
• IS0 9002:1994, Quality system - Model for quality assurance in production and servicing
• IS0 9003:1994, Quality systems - Model for quality assurance in final inspection and test

MSS (Manufacturers Standardization Society of the Valve & Fittings Industry)

• MSS SP-6-2001, Finishes for Contact Faces of Pipe Flanges and Connecting-End Flanges of Valves and Fittings
• MSS SP-9-2001, Spot Facing for Bronze, Iron and Steel Flanges
• MSS SP-25-1998, Standard Marking System for Valves, Fittings, Flanges, and Unions
• MSS SP-44-R2001, Steel Pipeline Flanges
• MSS SP-45-1998, Bypass and Drain Connections
• MSS SP-55-2001, Quality Standard for Steel Casting for Valves, Flanges, and Fittings
• MSS SP-61-1999, Pressure Testing of Steel Valves

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