ASME B16.3 2021

$75.42

ASME B16.3 – 2021 Malleable Iron Threaded Fittings: Classes 150 and 300

Published By	Publication Date	Number of Pages
ASME	2021	39

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Description

This Standard covers malleable iron threaded fittings, Classes 150 and 300. It also contains provisions for using steel for caps and couplings in Class 150 for NPS 3/8 and smaller. This standard includes: pressure-temperature ratings; size and method of designating openings of reducing fittings; marking; material; dimensions and tolerances; threading and coatings.

PDF Catalog

PDF Pages	PDF Title
4	CONTENTS
6	FOREWORD
8	ASME B16 COMMITTEE ROSTER
9	CORRESPONDENCE WITH THE B16 COMMITTEE
11	ASME B16.3-2021 SUMMARY OF CHANGES
12	LIST OF CHANGES IN RECORD NUMBER ORDER
14	1 SCOPE 2 GENERAL 2.1 References 2.2 Quality Systems 2.3 Relevant Units 2.4 Service Conditions 2.5 Convention 2.6 Denotation 3 PRESSURE–TEMPERATURE RATINGS
15	4 SIZE 4.1 Nominal Pipe Size 4.2 Reducing Fittings 5 MARKING 5.1 Class 150 Fittings Figures Figure 4.2-1 Identification of Reducing Fittings Tables Table 3-1 Pressure–Temperature Ratings
16	5.2 Class 300 Fittings 6 MATERIAL 6.1 Malleable Iron 6.2 Steel 7 DIMENSIONS AND TOLERANCES 7.1 General 7.2 Reducing Fittings 7.3 Tolerances 8 THREADING 8.1 Types of Threads 8.2 Tolerances 8.3 Countersink or Chamfer
17	8.4 Thread Length 8.5 Alignment 9 RIBS 9.1 General 9.2 Special Couplings 10 PLUGS, BUSHINGS, AND LOCKNUTS 11 FACE BEVEL 12 COATINGS 12.1 Malleable Iron Fittings 12.2 Steel Fittings 12.3 Other Coatings
18	Table 7.1-1 Dimensions of Class 150 90-deg Elbows, Tees, and Crosses, and 45-deg Elbows (Straight Sizes)
19	Table 7.1-2 Dimensions of Class 150 45-deg Y-Branches (Straight Sizes)
20	Table 7.1-3 Dimensions of Class 150 Street Tees and 90-deg and 45-deg Street Elbows
21	Table 7.1-4 Dimensions of Class 150 Closed-, Medium-, and Open-Pattern Return Bends
22	Table 7.1-5 Dimensions of Class 300 90-deg Elbows, Tees, and Crosses, and 45-deg Elbows (Straight Sizes)
23	Table 7.1-6 Dimensions of Class 300 Couplings
24	Table 7.1-7 Dimensions of Class 300 Caps
25	Table 7.1-8 Dimensions of Class 300 90-deg and 45-deg Street Elbows
26	Table 7.1-9 Dimensions of Class 300 Return Bends
27	Table 7.2.1-1 Dimensions of Class 150 90-deg Elbows and Crosses (Reducing Sizes)
28	Table 7.2.1-2 Dimensions of Class 150 Tees (Reducing Sizes)
30	Table 7.2.1-3 Dimensions of Class 150 Couplings (Straight and Reducing Sizes)
31	Table 7.2.1-4 Center-to-End Dimensions of Class 300 90-deg Elbows (Reducing Sizes) Table 7.2.1-5 Center-to-End Dimensions of Class 300 Tees (Reducing Sizes)
32	Table 7.2.1-6 Dimensions of Class 300 Reducing Couplings Table 7.3-1 Inspection Tolerances
33	Table 8.1-1 Dimensions of Class 150 Caps
34	Figure 8.2-1 Gaging of Chamfered Internal Threads
35	MANDATORY APPENDIX I REFERENCES
36	NONMANDATORY APPENDIX A QUALITY SYSTEM PROGRAM