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ASME B16.5 2020

$75.42

ASME B16.5-2020 Pipe Flanges and Flanged Fittings: NPS 1/2 through NPS 24, Metric/Inch Standard

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ASME 2020 250
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ASME B16.5 Pipe Flanges and Flanged Fittings: NPS 1/2 through NPS 24 Metric/Inch Standard covers pressure-temperature ratings, materials, dimensions, tolerances, marking, testing, and methods of designating openings for pipe flanges and flanged fittings. Included are: flanges with rating class designations 150, 300, 400, 600, 900, and 1500 in sizes NPS 1/2 through NPS 24 and flanges with rating class designation 2500 in sizes NPS 1/2 through NPS 12, with requirements given in both metric and U.S. Customary units with diameter of bolts and flange bolt holes expressed in inch units; flanged fittings with rating class designation 150 and 300 in sizes NPS 1/2 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; flanged fittings with rating class designation 400, 600, 900, and 1500 in sizes NPS 1/2 through NPS 24 and flanged fittings with rating class designation 2500 in sizes NPS 1/2 through NPS 12 that are acknowledged in Non-Mandatory Appendix E in which only U.S. Customary units are provided. B16.5 is limited to flanges and flanged fittings made from cast or forged materials, and 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.

PDF Catalog

PDF Pages PDF Title
4 CONTENTS
9 FOREWORD
11 ASME B16 COMMITTEE ROSTER
12 CORRESPONDENCE WITH THE B16 COMMITTEE
14 ASME B16.5-2020 SUMMARY OF CHANGES
17 LIST OF CHANGES IN RECORD NUMBER ORDER
18 1 GENERAL
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
19 1.9 Denotation
1.10 Cases
2 PRESSURE–TEMPERATURE RATINGS
2.1 General
2.2 Flanged Joints
2.3 Ratings of Flanged Joints
2.4 Rating Temperature
2.5 Temperature Considerations
20 2.6 System Hydrostatic Testing
2.7 Welding Neck Flanges
2.8 Straight Hub Welding Flanges
2.9 Multiple Material Grades
3 COMPONENT SIZE
3.1 Nominal Pipe Size
3.2 Reducing Fittings
3.3 Reducing Flanges
21 4 MARKING
4.1 General
4.2 Identification Markings
5 MATERIALS
5.1 General
22 Tables
Table 1.1-1 List of Material Specifications
24 5.2 Mechanical Properties
5.3 Bolting
25 5.4 Gaskets
6 DIMENSIONS
6.1 Flanged Fittings Wall Thickness
6.2 Fitting Center-to-Contact Surface and Center-to-End
26 Table 1.1-2 List of Bolting Specifications: Applicable ASTM Specifications
27 6.3 Flat Face Flanges
6.4 Flange Facings
28 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
29 6.10 Flange Bolting Dimensions
6.11 Gaskets for Line Flanges
6.12 Auxiliary Connections
Table 1.1-3 Flange Bolting Dimensional Recommendations
30 7 TOLERANCES
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
31 7.6 Length Through Hub on Welding Neck Flanges
7.7 Flange Bore Diameter
7.8 Drilling and Facing
8 PRESSURE TESTING
8.1 Flange Test
8.2 Flanged Fitting Test
32 Figures
Figure 1 Bevel for Outside Thickness
Figure 2 Bevel for Inside Thickness
Figure 3 Bevel for Combined Thickness
Figure 4 Straight Hub Welding Flanges
33 Figure 5 Method of Designating Outlets of Reducing Fittings in Specifications (Flanged Fittings)
34 Figure 6 End Flange Facings and Their Relationship to Flange Thickness and Center-to-End and End-to-End Dimensions
36 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.)
37 Figure 8 Welding Neck Flange Hub and Welding End Profiles for Wall Thicknesses t Greater Than 22 mm (0.88 in.)
38 Figure 9 Inside Contour for Use With Rectangular Backing Ring
Figure 10 Inside Contour for Use With Taper Backing Ring
39 Figure 11 Thread Length for Connection Tapping
Figure 12 Socket Welding for Connections
Figure 13 Bosses for Connections
Figure 14 Butt Welding for Connections
40 Figure 15 Method of Designating Location of Auxiliary Connections When Specified(Flanged Fittings)
41 Table 2-1.1 Pressure–Temperature Ratings for Group 1.1 Materials
42 Table 2-1.1C Pressure–Temperature Ratings for Group 1.1 Materials
43 Table 2-1.2 Pressure–Temperature Ratings for Group 1.2 Materials
44 Table 2-1.2C Pressure–Temperature Ratings for Group 1.2 Materials
45 Table 2-1.3 Pressure–Temperature Ratings for Group 1.3 Materials
46 Table 2-1.3C Pressure–Temperature Ratings for Group 1.3 Materials
47 Table 2-1.4 Pressure–Temperature Ratings for Group 1.4 Materials
48 Table 2-1.4C Pressure–Temperature Ratings for Group 1.4 Materials
49 Table 2-1.5 Pressure–Temperature Ratings for Group 1.5 Materials
50 Table 2-1.5C Pressure–Temperature Ratings for Group 1.5 Materials
51 Table 2-1.7 Pressure–Temperature Ratings for Group 1.7 Materials
52 Table 2-1.7C Pressure–Temperature Ratings for Group 1.7 Materials
53 Table 2-1.9 Pressure–Temperature Ratings for Group 1.9 Materials
54 Table 2-1.9C Pressure–Temperature Ratings for Group 1.9 Materials
55 Table 2-1.10 Pressure–Temperature Ratings for Group 1.10 Materials
56 Table 2-1.10C Pressure–Temperature Ratings for Group 1.10 Materials
57 Table 2-1.11 Pressure–Temperature Ratings for Group 1.11 Materials
58 Table 2-1.11C Pressure–Temperature Ratings for Group 1.11 Materials
59 Table 2-1.13 Pressure–Temperature Ratings for Group 1.13 Materials
60 Table 2-1.13C Pressure–Temperature Ratings for Group 1.13 Materials
61 Table 2-1.14 Pressure–Temperature Ratings for Group 1.14 Materials
62 Table 2-1.14C Pressure–Temperature Ratings for Group 1.14 Materials
63 Table 2-1.15 Pressure–Temperature Ratings for Group 1.15 Materials
64 Table 2-1.15C Pressure–Temperature Ratings for Group 1.15 Materials
65 Table 2-1.17 Pressure–Temperature Ratings for Group 1.17 Materials
66 Table 2-1.17C Pressure–Temperature Ratings for Group 1.17 Materials
67 Table 2-1.18 Pressure–Temperature Ratings for Group 1.18 Materials
68 Table 2-1.18C Pressure–Temperature Ratings for Group 1.18 Materials
69 Table 2-2.1 Pressure–Temperature Ratings for Group 2.1 Materials
70 Table 2-2.1C Pressure–Temperature Ratings for Group 2.1 Materials
71 Table 2-2.2 Pressure–Temperature Ratings for Group 2.2 Materials
72 Table 2-2.2C Pressure–Temperature Ratings for Group 2.2 Materials
73 Table 2-2.3 Pressure–Temperature Ratings for Group 2.3 Materials
74 Table 2-2.4 Pressure–Temperature Ratings for Group 2.4 Materials
75 Table 2-2.4C Pressure–Temperature Ratings for Group 2.4 Materials
76 Table 2-2.5 Pressure–Temperature Ratings for Group 2.5 Materials
77 Table 2-2.5C Pressure–Temperature Ratings for Group 2.5 Materials
78 Table 2-2.6 Pressure–Temperature Ratings for Group 2.6 Materials
79 Table 2-2.6C Pressure–Temperature Ratings for Group 2.6 Materials
80 Table 2-2.7 Pressure–Temperature Ratings for Group 2.7 Materials
81 Table 2-2.7C Pressure–Temperature Ratings for Group 2.7 Materials
82 Table 2-2.8 Pressure–Temperature Ratings for Group 2.8 Materials
Table 2-2.8C Pressure–Temperature Ratings for Group 2.8 Materials
83 Table 2-2.9 Pressure–Temperature Ratings for Group 2.9 Materials
84 Table 2-2.9C Pressure–Temperature Ratings for Group 2.9 Materials
85 Table 2-2.10 Pressure–Temperature Ratings for Group 2.10 Materials
86 Table 2-2.10C Pressure–Temperature Ratings for Group 2.10 Materials
87 Table 2-2.11 Pressure–Temperature Ratings for Group 2.11 Materials
88 Table 2-2.11C Pressure–Temperature Ratings for Group 2.11 Materials
89 Table 2-2.12 Pressure–Temperature Ratings for Group 2.12 Materials
90 Table 2-2.12C Pressure–Temperature Ratings for Group 2.12 Materials
91 Table 2-3.1 Pressure–Temperature Ratings for Group 3.1 Materials
Table 2-3.1C Pressure–Temperature Ratings for Group 3.1 Materials
92 Table 2-3.2 Pressure–Temperature Ratings for Group 3.2 Materials
Table 2-3.2C Pressure–Temperature Ratings for Group 3.2 Materials
93 Table 2-3.3 Pressure–Temperature Ratings for Group 3.3 Materials
94 Table 2-3.3C Pressure–Temperature Ratings for Group 3.3 Materials
95 Table 2-3.4 Pressure–Temperature Ratings for Group 3.4 Materials
Table 2-3.4C Pressure–Temperature Ratings for Group 3.4 Materials
96 Table 2-3.5 Pressure–Temperature Ratings for Group 3.5 Materials
97 Table 2-3.5C Pressure–Temperature Ratings for Group 3.5 Materials
98 Table 2-3.6 Pressure–Temperature Ratings for Group 3.6 Materials
99 Table 2-3.6C Pressure–Temperature Ratings for Group 3.6 Materials
100 Table 2-3.7 Pressure–Temperature Ratings for Group 3.7 Materials
Table 2-3.7C Pressure–Temperature Ratings for Group 3.7 Materials
101 Table 2-3.8 Pressure–Temperature Ratings for Group 3.8 Materials
102 Table 2-3.8C Pressure–Temperature Ratings for Group 3.8 Materials
103 Table 2-3.9 Pressure–Temperature Ratings for Group 3.9 Materials
104 Table 2-3.9C Pressure–Temperature Ratings for Group 3.9 Materials
105 Table 2-3.10 Pressure–Temperature Ratings for Group 3.10 Materials
Table 2-3.10C Pressure–Temperature Ratings for Group 3.10 Materials
106 Table 2-3.11 Pressure–Temperature Ratings for Group 3.11 Materials
Table 2-3.11C Pressure–Temperature Ratings for Group 3.11 Materials
107 Table 2-3.12 Pressure–Temperature Ratings for Group 3.12 Materials
Table 2-3.12C Pressure–Temperature Ratings for Group 3.12 Materials
108 Table 2-3.13 Pressure–Temperature Ratings for Group 3.13 Materials
Table 2-3.13C Pressure–Temperature Ratings for Group 3.13 Materials
109 Table 2-3.14 Pressure–Temperature Ratings for Group 3.14 Materials
110 Table 2-3.14C Pressure–Temperature Ratings for Group 3.14 Materials
111 Table 2-3.15 Pressure–Temperature Ratings for Group 3.15 Materials
112 Table 2-3.15C Pressure–Temperature Ratings for Group 3.15 Materials
113 Table 2-3.16 Pressure–Temperature Ratings for Group 3.16 Materials
114 Table 2-3.16C Pressure–Temperature Ratings for Group 3.16 Materials
115 Table 2-3.17 Pressure–Temperature Ratings for Group 3.17 Materials
Table 2-3.17C Pressure–Temperature Ratings for Group 3.17 Materials
116 Table 2-3.19 Pressure–Temperature Ratings for Group 3.19 Materials
117 Table 2-3.19C Pressure–Temperature Ratings for Group 3.19 Materials
118 Table 3 Permissible Imperfections in Flange Facing Finish for Raised Face and Large Male and Female Flanges
119 Table 3C Permissible Imperfections in Flange Facing Finish for Raised Face and Large Male and Female Flanges
120 Table 4 Dimensions of Facings (Other Than Ring Joints, All Pressure Rating Classes)
122 Table 4C Dimensions of Facings (Other Than Ring Joints, All Pressure Rating Classes)
125 Table 5 Dimensions of Ring Joint Facings (All Pressure Rating Classes)
126 Table 5 Dimensions of Ring Joint Facings (All Pressure Rating Classes)
133 Table 5C Dimensions of Ring Joint Facings (All Pressure Rating Classes)
140 Table 6 Reducing Threaded and Slip-On Pipe Flanges for Classes 150 Through 2500 Pipe Flanges
141 Table 6C Reducing Threaded and Slip-On Pipe Flanges for Classes 150 Through 2500 Pipe Flanges
142 Table 7 Templates for Drilling Class 150 Pipe Flanges and Flanged Fittings
143 Table 7C Templates for Drilling Class 150 Pipe Flanges and Flanged Fittings
144 Table 8 Dimensions of Class 150 Flanges
147 Table 8C Dimensions of Class 150 Flanges
151 Table 9 Dimensions of Class 150 Flanged Fittings
152 Table 9 Dimensions of Class 150 Flanged Fittings
157 Table 9C Dimensions of Class 150 Flanged Fittings
158 Table 9C Dimensions of Class 150 Flanged Fittings
160 Table 10 Templates for Drilling Class 300 Pipe Flanges and Flanged Fittings
161 Table 10C Templates for Drilling Class 300 Pipe Flanges and Flanged Fittings
162 Table 11 Dimensions of Class 300 Flanges
165 Table 11C Dimensions of Class 300 Flanges
169 Table 12 Dimensions of Class 300 Flanged Fittings
173 Table 12C Dimensions of Class 300 Flanged Fittings
176 Table 13 Templates for Drilling Class 400 Pipe Flanges
177 Table 13C Templates for Drilling Class 400 Pipe Flanges
178 Table 14 Dimensions of Class 400 Flanges
180 Table 14C Dimensions of Class 400 Flanges
182 Table 15 Templates for Drilling Class 600 Pipe Flanges and Flanged Fittings
183 Table 15C Templates for Drilling Class 600 Pipe Flanges and Flanged Fittings
184 Table 16 Dimensions of Class 600 Flanges
186 Table 16C Dimensions of Class 600 Flanges
188 Table 17 Templates for Drilling Class 900 Pipe Flanges and Flanged Fittings
189 Table 17C Templates for Drilling Class 900 Pipe Flanges and Flanged Fittings
190 Table 18 Dimensions of Class 900 Flanges
192 Table 18C Dimensions of Class 900 Flanges
194 Table 19 Templates for Drilling Class 1500 Pipe Flanges
195 Table 19C Templates for Drilling Class 1500 Pipe Flanges
196 Table 20 Dimensions of Class 1500 Flanges
198 Table 20C Dimensions of Class 1500 Flanges
200 Table 21 Templates for Drilling Class 2500 Pipe Flanges
201 Table 21C Templates for Drilling Class 2500 Pipe Flanges
202 Table 22 Dimensions of Class 2500 Flanges
204 Table 22C Dimensions of Class 2500 Flanges
206 MANDATORY APPENDICES
MANDATORY APPENDIX I THREADING OF PIPE FOR AMERICAN NATIONAL STANDARD THREADED FLANGES
207 Table I-1 Projection of Threaded Pipe End Through a Ring Gage
208 MANDATORY APPENDIX II REFERENCES
211 NONMANDATORY APPENDICES
NONMANDATORY APPENDIX A METHOD USED FOR ESTABLISHING PRESSURE–TEMPERATURE RATINGS
A-1 GENERAL CONSIDERATIONS
212 A-2 PRESSURE–TEMPERATURE RATING METHOD
213 Table A-1 Rating Ceiling Pressure — pc, bar
A-3 MAXIMUM RATINGS
214 Table A-2 Rating Ceiling Pressure — pc, psi
215 NONMANDATORY APPENDIX B LIMITING DIMENSIONS OF GASKETSOTHER THAN RING JOINT GASKETS
B-1 GASKET MATERIALS AND CONSTRUCTION
B-2 GASKET DIMENSIONS
216 Table B-1 Gasket Groups and Typical Materials
217 Figure C-1 Specified Machine Bolt Length
Figure C-2 Specified Stud Bolt Length
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).
218 Table C-1 Thickness for Lapped Joints
Table C-2 F Values
Table C-3 n Values
219 NONMANDATORY APPENDIX D QUALITY SYSTEM PROGRAM
220 NONMANDATORY APPENDIX E DIMENSIONS OF CLASSES 400, 600, 900, 1500, AND 2500 FLANGED FITTINGS IN U.S. CUSTOMARY UNITS
221 Table E-1 Dimensions of Class 400 Flanged Fittings
227 Table E-2 Dimensions of Class 600 Flanged Fittings
233 Table E-3 Dimensions of Class 900 Flanged Fittings
239 Table E-4 Dimensions of Class 1500 Flanged Fittings
245 Table E-5 Dimensions of Class 2500 Flanged Fittings
248 NONMANDATORY APPENDIX F METHOD USED TO ESTABLISH SI UNIT VALUES
F-1 INTRODUCTION
F-2 SI VALUES FOR THE 2003 EDITION
249 F-3 SI VALUES FOR THE 2020 EDITION
ASME B16.5 2020
$75.42