Already a subscriber?
MADCAD.com Free Trial
Sign up for a 3 day free trial to explore the MADCAD.com interface, PLUS access the
2009 International Building Code to see how it all works.
If you like to setup a quick demo, let us know at support@madcad.com
or +1 800.798.9296 and we will be happy to schedule a webinar for you.
Security check
Please login to your personal account to use this feature.
Please login to your authorized staff account to use this feature.
Are you sure you want to empty the cart?
ASME B16.5-2020 Pipe Flanges and Flanged Fittings: NPS 1/2 through NPS 24, Metric/Inch Standard, 2020
- CONTENTS
- FOREWORD
- ASME B16 COMMITTEE ROSTER
- CORRESPONDENCE WITH THE B16 COMMITTEE
- ASME B16.5-2020 SUMMARY OF CHANGES
- LIST OF CHANGES IN RECORD NUMBER ORDER
- 1 GENERAL [Go to Page]
- 1.1 Scope
- 1.2 References
- 1.3 Time of Purchase, Manufacture, or Installation
- 1.4 User Accountability
- 1.5 Quality Systems
- 1.6 Relevant Units
- 1.7 Selection of Materials
- 1.8 Convention
- 1.9 Denotation
- 1.10 Cases
- 2 PRESSURE–TEMPERATURE RATINGS [Go to Page]
- 2.1 General
- 2.2 Flanged Joints
- 2.3 Ratings of Flanged Joints
- 2.4 Rating Temperature
- 2.5 Temperature Considerations
- 2.6 System Hydrostatic Testing
- 2.7 Welding Neck Flanges
- 2.8 Straight Hub Welding Flanges
- 2.9 Multiple Material Grades
- 3 COMPONENT SIZE [Go to Page]
- 3.1 Nominal Pipe Size
- 3.2 Reducing Fittings
- 3.3 Reducing Flanges
- 4 MARKING [Go to Page]
- 4.1 General
- 4.2 Identification Markings
- 5 MATERIALS [Go to Page]
- 5.1 General
- 5.2 Mechanical Properties
- 5.3 Bolting
- 5.4 Gaskets
- 6 DIMENSIONS [Go to Page]
- 6.1 Flanged Fittings Wall Thickness
- 6.2 Fitting Center-to-Contact Surface and Center-to-End
- 6.3 Flat Face Flanges
- 6.4 Flange Facings
- 6.5 Flange Bolt Holes
- 6.6 Bolting Bearing Surfaces
- 6.7 Welding Neck Flanges Hub and Welding End Profiles
- 6.8 Reducing Flanges
- 6.9 Threaded Flanges
- 6.10 Flange Bolting Dimensions
- 6.11 Gaskets for Line Flanges
- 6.12 Auxiliary Connections
- 7 TOLERANCES [Go to Page]
- 7.1 General
- 7.2 Center-to-Contact Surfaces and Center-to-End Tolerances
- 7.3 Facings
- 7.4 Flange Thickness
- 7.5 Welding End Flange Ends and Hubs
- 7.6 Length Through Hub on Welding Neck Flanges
- 7.7 Flange Bore Diameter
- 7.8 Drilling and Facing
- 8 PRESSURE TESTING [Go to Page]
- 8.1 Flange Test
- 8.2 Flanged Fitting Test
- Figures [Go to Page]
- Figure 1 Bevel for Outside Thickness
- Figure 2 Bevel for Inside Thickness
- Figure 3 Bevel for Combined Thickness
- Figure 4 Straight Hub Welding Flanges
- Figure 5 Method of Designating Outlets of Reducing Fittings in Specifications (Flanged Fittings)
- Figure 6 End Flange Facings and Their Relationship to Flange Thickness and Center-to-End and End-to-End Dimensions
- Figure 7 Welding Neck Flange Hub and Welding End Profiles for Wall Thicknesses t From 5 mm (0.19 in.) to 22 mm (0.88 in.)
- Figure 8 Welding Neck Flange Hub and Welding End Profiles for Wall Thicknesses t Greater Than 22 mm (0.88 in.)
- Figure 9 Inside Contour for Use With Rectangular Backing Ring
- Figure 10 Inside Contour for Use With Taper Backing Ring
- Figure 11 Thread Length for Connection Tapping
- Figure 12 Socket Welding for Connections
- Figure 13 Bosses for Connections
- Figure 14 Butt Welding for Connections
- Figure 15 Method of Designating Location of Auxiliary Connections When Specified(Flanged Fittings)
- Figure C-1 Specified Machine Bolt Length
- Figure C-2 Specified Stud Bolt Length
- Tables [Go to Page]
- Table 1.1-1 List of Material Specifications
- Table 1.1-2 List of Bolting Specifications: Applicable ASTM Specifications
- Table 1.1-3 Flange Bolting Dimensional Recommendations
- Table 2-1.1 Pressure–Temperature Ratings for Group 1.1 Materials
- Table 2-1.1C Pressure–Temperature Ratings for Group 1.1 Materials
- Table 2-1.2 Pressure–Temperature Ratings for Group 1.2 Materials
- Table 2-1.2C Pressure–Temperature Ratings for Group 1.2 Materials
- Table 2-1.3 Pressure–Temperature Ratings for Group 1.3 Materials
- Table 2-1.3C Pressure–Temperature Ratings for Group 1.3 Materials
- Table 2-1.4 Pressure–Temperature Ratings for Group 1.4 Materials
- Table 2-1.4C Pressure–Temperature Ratings for Group 1.4 Materials
- Table 2-1.5 Pressure–Temperature Ratings for Group 1.5 Materials
- Table 2-1.5C Pressure–Temperature Ratings for Group 1.5 Materials
- Table 2-1.7 Pressure–Temperature Ratings for Group 1.7 Materials
- Table 2-1.7C Pressure–Temperature Ratings for Group 1.7 Materials
- Table 2-1.9 Pressure–Temperature Ratings for Group 1.9 Materials
- Table 2-1.9C Pressure–Temperature Ratings for Group 1.9 Materials
- Table 2-1.10 Pressure–Temperature Ratings for Group 1.10 Materials
- Table 2-1.10C Pressure–Temperature Ratings for Group 1.10 Materials
- Table 2-1.11 Pressure–Temperature Ratings for Group 1.11 Materials
- Table 2-1.11C Pressure–Temperature Ratings for Group 1.11 Materials
- Table 2-1.13 Pressure–Temperature Ratings for Group 1.13 Materials
- Table 2-1.13C Pressure–Temperature Ratings for Group 1.13 Materials
- Table 2-1.14 Pressure–Temperature Ratings for Group 1.14 Materials
- Table 2-1.14C Pressure–Temperature Ratings for Group 1.14 Materials
- Table 2-1.15 Pressure–Temperature Ratings for Group 1.15 Materials
- Table 2-1.15C Pressure–Temperature Ratings for Group 1.15 Materials
- Table 2-1.17 Pressure–Temperature Ratings for Group 1.17 Materials
- Table 2-1.17C Pressure–Temperature Ratings for Group 1.17 Materials
- Table 2-1.18 Pressure–Temperature Ratings for Group 1.18 Materials
- Table 2-1.18C Pressure–Temperature Ratings for Group 1.18 Materials
- Table 2-2.1 Pressure–Temperature Ratings for Group 2.1 Materials
- Table 2-2.1C Pressure–Temperature Ratings for Group 2.1 Materials
- Table 2-2.2 Pressure–Temperature Ratings for Group 2.2 Materials
- Table 2-2.2C Pressure–Temperature Ratings for Group 2.2 Materials
- Table 2-2.3 Pressure–Temperature Ratings for Group 2.3 Materials
- Table 2-2.4 Pressure–Temperature Ratings for Group 2.4 Materials
- Table 2-2.4C Pressure–Temperature Ratings for Group 2.4 Materials
- Table 2-2.5 Pressure–Temperature Ratings for Group 2.5 Materials
- Table 2-2.5C Pressure–Temperature Ratings for Group 2.5 Materials
- Table 2-2.6 Pressure–Temperature Ratings for Group 2.6 Materials
- Table 2-2.6C Pressure–Temperature Ratings for Group 2.6 Materials
- Table 2-2.7 Pressure–Temperature Ratings for Group 2.7 Materials
- Table 2-2.7C Pressure–Temperature Ratings for Group 2.7 Materials
- Table 2-2.8 Pressure–Temperature Ratings for Group 2.8 Materials
- Table 2-2.8C Pressure–Temperature Ratings for Group 2.8 Materials
- Table 2-2.9 Pressure–Temperature Ratings for Group 2.9 Materials
- Table 2-2.9C Pressure–Temperature Ratings for Group 2.9 Materials
- Table 2-2.10 Pressure–Temperature Ratings for Group 2.10 Materials
- Table 2-2.10C Pressure–Temperature Ratings for Group 2.10 Materials
- Table 2-2.11 Pressure–Temperature Ratings for Group 2.11 Materials
- Table 2-2.11C Pressure–Temperature Ratings for Group 2.11 Materials
- Table 2-2.12 Pressure–Temperature Ratings for Group 2.12 Materials
- Table 2-2.12C Pressure–Temperature Ratings for Group 2.12 Materials
- Table 2-3.1 Pressure–Temperature Ratings for Group 3.1 Materials
- Table 2-3.1C Pressure–Temperature Ratings for Group 3.1 Materials
- Table 2-3.2 Pressure–Temperature Ratings for Group 3.2 Materials
- Table 2-3.2C Pressure–Temperature Ratings for Group 3.2 Materials
- Table 2-3.3 Pressure–Temperature Ratings for Group 3.3 Materials
- Table 2-3.3C Pressure–Temperature Ratings for Group 3.3 Materials
- Table 2-3.4 Pressure–Temperature Ratings for Group 3.4 Materials
- Table 2-3.4C Pressure–Temperature Ratings for Group 3.4 Materials
- Table 2-3.5 Pressure–Temperature Ratings for Group 3.5 Materials
- Table 2-3.5C Pressure–Temperature Ratings for Group 3.5 Materials
- Table 2-3.6 Pressure–Temperature Ratings for Group 3.6 Materials
- Table 2-3.6C Pressure–Temperature Ratings for Group 3.6 Materials
- Table 2-3.7 Pressure–Temperature Ratings for Group 3.7 Materials
- Table 2-3.7C Pressure–Temperature Ratings for Group 3.7 Materials
- Table 2-3.8 Pressure–Temperature Ratings for Group 3.8 Materials
- Table 2-3.8C Pressure–Temperature Ratings for Group 3.8 Materials
- Table 2-3.9 Pressure–Temperature Ratings for Group 3.9 Materials
- Table 2-3.9C Pressure–Temperature Ratings for Group 3.9 Materials
- Table 2-3.10 Pressure–Temperature Ratings for Group 3.10 Materials
- Table 2-3.10C Pressure–Temperature Ratings for Group 3.10 Materials
- Table 2-3.11 Pressure–Temperature Ratings for Group 3.11 Materials
- Table 2-3.11C Pressure–Temperature Ratings for Group 3.11 Materials
- Table 2-3.12 Pressure–Temperature Ratings for Group 3.12 Materials
- Table 2-3.12C Pressure–Temperature Ratings for Group 3.12 Materials
- Table 2-3.13 Pressure–Temperature Ratings for Group 3.13 Materials
- Table 2-3.13C Pressure–Temperature Ratings for Group 3.13 Materials
- Table 2-3.14 Pressure–Temperature Ratings for Group 3.14 Materials
- Table 2-3.14C Pressure–Temperature Ratings for Group 3.14 Materials
- Table 2-3.15 Pressure–Temperature Ratings for Group 3.15 Materials
- Table 2-3.15C Pressure–Temperature Ratings for Group 3.15 Materials
- Table 2-3.16 Pressure–Temperature Ratings for Group 3.16 Materials
- Table 2-3.16C Pressure–Temperature Ratings for Group 3.16 Materials
- Table 2-3.17 Pressure–Temperature Ratings for Group 3.17 Materials
- Table 2-3.17C Pressure–Temperature Ratings for Group 3.17 Materials
- Table 2-3.19 Pressure–Temperature Ratings for Group 3.19 Materials
- Table 2-3.19C Pressure–Temperature Ratings for Group 3.19 Materials
- Table 3 Permissible Imperfections in Flange Facing Finish for Raised Face and Large Male and Female Flanges
- Table 3C Permissible Imperfections in Flange Facing Finish for Raised Face and Large Male and Female Flanges
- Table 4 Dimensions of Facings (Other Than Ring Joints, All Pressure Rating Classes)
- Table 4C Dimensions of Facings (Other Than Ring Joints, All Pressure Rating Classes)
- Table 5 Dimensions of Ring Joint Facings (All Pressure Rating Classes)
- Table 5 Dimensions of Ring Joint Facings (All Pressure Rating Classes)
- Table 5C Dimensions of Ring Joint Facings (All Pressure Rating Classes)
- Table 6 Reducing Threaded and Slip-On Pipe Flanges for Classes 150 Through 2500 Pipe Flanges
- Table 6C Reducing Threaded and Slip-On Pipe Flanges for Classes 150 Through 2500 Pipe Flanges
- Table 7 Templates for Drilling Class 150 Pipe Flanges and Flanged Fittings
- Table 7C Templates for Drilling Class 150 Pipe Flanges and Flanged Fittings
- Table 8 Dimensions of Class 150 Flanges
- Table 8C Dimensions of Class 150 Flanges
- Table 9 Dimensions of Class 150 Flanged Fittings
- Table 9 Dimensions of Class 150 Flanged Fittings
- Table 9C Dimensions of Class 150 Flanged Fittings
- Table 9C Dimensions of Class 150 Flanged Fittings
- Table 10 Templates for Drilling Class 300 Pipe Flanges and Flanged Fittings
- Table 10C Templates for Drilling Class 300 Pipe Flanges and Flanged Fittings
- Table 11 Dimensions of Class 300 Flanges
- Table 11C Dimensions of Class 300 Flanges
- Table 12 Dimensions of Class 300 Flanged Fittings
- Table 12C Dimensions of Class 300 Flanged Fittings
- Table 13 Templates for Drilling Class 400 Pipe Flanges
- Table 13C Templates for Drilling Class 400 Pipe Flanges
- Table 14 Dimensions of Class 400 Flanges
- Table 14C Dimensions of Class 400 Flanges
- Table 15 Templates for Drilling Class 600 Pipe Flanges and Flanged Fittings
- Table 15C Templates for Drilling Class 600 Pipe Flanges and Flanged Fittings
- Table 16 Dimensions of Class 600 Flanges
- Table 16C Dimensions of Class 600 Flanges
- Table 17 Templates for Drilling Class 900 Pipe Flanges and Flanged Fittings
- Table 17C Templates for Drilling Class 900 Pipe Flanges and Flanged Fittings
- Table 18 Dimensions of Class 900 Flanges
- Table 18C Dimensions of Class 900 Flanges
- Table 19 Templates for Drilling Class 1500 Pipe Flanges
- Table 19C Templates for Drilling Class 1500 Pipe Flanges
- Table 20 Dimensions of Class 1500 Flanges
- Table 20C Dimensions of Class 1500 Flanges
- Table 21 Templates for Drilling Class 2500 Pipe Flanges
- Table 21C Templates for Drilling Class 2500 Pipe Flanges
- Table 22 Dimensions of Class 2500 Flanges
- Table 22C Dimensions of Class 2500 Flanges
- Table I-1 Projection of Threaded Pipe End Through a Ring Gage
- Table A-1 Rating Ceiling Pressure — pc, bar
- Table A-2 Rating Ceiling Pressure — pc, psi
- Table B-1 Gasket Groups and Typical Materials
- Table C-1 Thickness for Lapped Joints
- Table C-2 F Values
- Table C-3 n Values
- Table E-1 Dimensions of Class 400 Flanged Fittings
- Table E-2 Dimensions of Class 600 Flanged Fittings
- Table E-3 Dimensions of Class 900 Flanged Fittings
- Table E-4 Dimensions of Class 1500 Flanged Fittings
- Table E-5 Dimensions of Class 2500 Flanged Fittings
- MANDATORY APPENDICES [Go to Page]
- MANDATORY APPENDIX I THREADING OF PIPE FOR AMERICAN NATIONAL STANDARD THREADED FLANGES
- MANDATORY APPENDIX II REFERENCES
- NONMANDATORY APPENDICES [Go to Page]
- NONMANDATORY APPENDIX A METHOD USED FOR ESTABLISHING PRESSURE–TEMPERATURE RATINGS [Go to Page]
- A-1 GENERAL CONSIDERATIONS
- A-2 PRESSURE–TEMPERATURE RATING METHOD
- A-3 MAXIMUM RATINGS
- NONMANDATORY APPENDIX B LIMITING DIMENSIONS OF GASKETSOTHER THAN RING JOINT GASKETS [Go to Page]
- B-1 GASKET MATERIALS AND CONSTRUCTION
- B-2 GASKET DIMENSIONS
- NONMANDATORY APPENDIX C METHOD FOR CALCULATING BOLT LENGTHS1The equations used in this Nonmandatory Appendix are for calculated bolt lengths established to ensure full thread engagement of heavy hexagon nuts when worst case tolerances occur on all relevant dimensions of the flanged joint. The use of shorter bolt lengths is acceptable provided that full thread engagement is obtained at assembly (see para. 6.10.2).
- NONMANDATORY APPENDIX D QUALITY SYSTEM PROGRAM
- NONMANDATORY APPENDIX E DIMENSIONS OF CLASSES 400, 600, 900, 1500, AND 2500 FLANGED FITTINGS IN U.S. CUSTOMARY UNITS
- NONMANDATORY APPENDIX F METHOD USED TO ESTABLISH SI UNIT VALUES [Go to Page]
- F-1 INTRODUCTION
- F-2 SI VALUES FOR THE 2003 EDITION
- F-3 SI VALUES FOR THE 2020 EDITION [Go to Page]