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B31.1 Power Piping, 2014
- CONTENTS
- FOREWORD
- ASME B31 COMMITTEE ROSTER
- INTRODUCTION
- ASME B31.1- 2014 SUMMARY OF CHANGES
- Chapter I Scope and Definitions [Go to Page]
- 100 GENERAL
- Chapter II Design [Go to Page]
- 101 DESIGN CONDITIONS
- 102 DESIGN CRITERIA
- 103 CRITERIA FOR PRESSURE DESIGN OF PIPING COMPONENTS
- 104 PRESSURE DESIGN OF COMPONENTS
- 105 PIPE
- 106 FITTINGS, BENDS, AND INTERSECTIONS
- 107 VALVES
- 108 PIPE FLANGES, BLANKS, FLANGE FACINGS, GASKETS, AND BOLTING
- 110 PIPING JOINTS
- 111 WELDED JOINTS
- 112 FLANGED JOINTS
- 113 EXPANDED OR ROLLED JOINTS
- 114 THREADED JOINTS
- 115 FLARED, FLARELESS, AND COMPRESSION JOINTS, AND UNIONS
- 116 BELL END JOINTS
- 117 BRAZED AND SOLDERED JOINTS
- 118 SLEEVE COUPLED AND OTHER PROPRIETARY JOINTS
- 119 EXPANSION AND FLEXIBILITY
- 120 LOADS ON PIPE SUPPORTING ELEMENTS
- 121 DESIGN OF PIPE SUPPORTING ELEMENTS
- 122 DESIGN REQUIREMENTS PERTAINING TO SPECIFIC PIPING SYSTEMS
- Chapter III Materials [Go to Page]
- 123 GENERAL REQUIREMENTS
- 124 LIMITATIONS ON MATERIALS
- 125 CREEP STRENGTH ENHANCED FERRITIC MATERIALS
- Chapter IV Dimensional Requirements [Go to Page]
- 126 MATERIAL SPECIFICATIONS AND STANDARDS FOR STANDARD AND NONSTANDARD PIPING COMPONENTS
- Chapter V Fabrication, Assembly, and Erection [Go to Page]
- 127 WELDING
- 128 BRAZING AND SOLDERING
- 129 BENDING AND FORMING
- 130 REQUIREMENTS FOR FABRICATING AND ATTACHING PIPE SUPPORTS
- 131 WELDING PREHEAT
- 132 POSTWELD HEAT TREATMENT
- 133 STAMPING
- 135 ASSEMBLY
- Chapter VI Inspection, Examination, and Testing [Go to Page]
- 136 INSPECTION AND EXAMINATION
- 137 PRESSURE TESTS
- Chapter VII Operation and Maintenance [Go to Page]
- 138 GENERAL
- 139 OPERATION AND MAINTENANCE PROCEDURES
- 140 CONDITION ASSESSMENT OF CPS
- 141 CPS RECORDS
- 142 PIPING AND PIPE- SUPPORT MAINTENANCE PROGRAM AND PERSONNEL REQUIREMENTS
- 144 CPS WALKDOWNS
- 145 MATERIAL DEGRADATION MECHANISMS
- 146 DYNAMIC LOADING
- Figures
[Go to Page]
- Fig. 100.1.2(A.1) Code Jurisdictional Limits for Piping — An Example of Forced Flow Steam Generators With No Fixed Steam and Water Line
- Fig. 100.1.2(A.2) Code Jurisdictional Limits for Piping — An Example of Steam Separator Type Forced Flow Steam Generators With No Fixed Steam and Water Line
- Fig. 100.1.2(B) Code Jurisdictional Limits for Piping — Drum-Type Boilers
- Fig. 100.1.2(C) Code Jurisdictional Limits for Piping — Spray-Type Desuperheater
- Fig. 102.4.5 Nomenclature for Pipe Bends
- Fig. 104.3.1(D) Reinforcement of Branch Connections
- Fig. 104.3.1(G) Reinforced Extruded Outlets
- Fig. 104.5.3 Types of Permanent Blanks
- Fig. 104.8.4 Cross Section Resultant Moment Loading
- Fig. 122.1.7(C) Typical Globe Valves
- Fig. 122.4 Desuperheater Schematic Arrangement
- Fig. 127.3 Butt Welding of Piping Components With Internal Misalignment
- Fig. 127.4.2 Welding End Transition — Maximum Envelope
- Fig. 127.4.4(A) Fillet Weld Size
- Fig. 127.4.4(B) Welding Details for Slip-On and Socket-Welding Flanges; Some Acceptable Types of FlangeAttachment Welds
- Fig. 127.4.4(C) Minimum Welding Dimensions Required for Socket Welding Components Other Than Flanges
- Fig. 127.4.8(B) Typical Welded Branch Connection With Additional Reinforcement
- Fig. 127.4.8(A) Typical Welded Branch Connection Without Additional Reinforcement
- Fig. 127.4.8(C) Typical Welded Angular Branch Connection Without Additional Reinforcement
- Fig. 127.4.8(D) Some Acceptable Types of Welded Branch Attachment Details Showing Minimum Acceptable Welds
- Fig. 127.4.8(E) Some Acceptable Details for Integrally Reinforced Outlet Fittings
- Fig. 127.4.8(F) Typical Full Penetration Weld Branch Connections for NPS 3 and Smaller Half Couplings or Adapters
- Fig. 127.4.8(G) Typical Partial Penetration Weld Branch Connection for NPS 2 and Smaller Fittings
- Fig. 135.5.3 Typical Threaded Joints Using Straight Threads
- Tables [Go to Page]
- Table 102.4.3 Longitudinal Weld Joint Efficiency Factors
- Table 102.4.5 Bend Thinning Allowance
- Table 102.4.6( B. 1.1) Maximum Severity Level for Casting Thickness 4 1/2 in. (114 mm) or less
- Table 102.4.6( B. 2.2) Maximum Severity Level for Casting Thickness Greater Than 4 1/2 in. (114 mm)
- Table 102.4.7 Weld Strength Reduction Factors to Be Applied When Calculating the Minimum Wall Thickness or Allowable Design Pressure of Components Fabricated With a Longitudinal Seam Fusion Weld
- Table 104.1.2( A) Values of y
- Table 112 Piping Flange Bolting, Facing, and Gasket Requirements
- Table 114.2.1 Threaded Joints Limitations
- Table 121.5 Suggested Steel Pipe Support Spacing
- Table 121.7.2( A) Carrying Capacity of Threaded ASTM A36, A575, and A576 Hot- Rolled Carbon Steel
- Table 122.2 Design Pressure for Blowoff/ Blowdown Piping Downstream of BEP Valves
- Table 122.8.2( B) Minimum Wall Thickness Requirements for Toxic Fluid Piping
- Table 126.1 Specifications and Standards
- Table 127.4.2 Reinforcement of Girth and Longitudinal Butt Welds
- Table 129.3.1 Approximate Lower Critical Temperatures
- Table 129.3.4.1 Post Cold- Forming Strain Limits and Heat- Treatment Requirements
- Table 131.4.1 Preheat Temperatures
- Table 132 Postweld Heat Treatment
- Table 132.1 Alternate Postweld Heat Treatment Requirements for Carbon and Low Alloy Steels, P- Nos. 1 and 3
- Table 132.1.3 Postweld Heat Treatment of P36/ F36
- Table 132.2 Exemptions to Mandatory Postweld Heat Treatment
- Table 136.4 Mandatory Minimum Nondestructive Examinations for Pressure Welds or Welds to Pressure- Retaining Components
- Table 136.4.1 Weld Imperfections Indicated by Various Types of Examination
- MANDATORY APPENDIX A ALLOWABLE STRESS TABLES [Go to Page]
- Table A- 1 Carbon Steel
- Table A- 2 Low and Intermediate Alloy Steel
- Table A- 3 Stainless Steels
- Table A- 4 Nickel and High Nickel Alloys
- Table A- 5 Cast Iron
- Table A- 6 Copper and Copper Alloys
- Table A- 7 Aluminum and Aluminum Alloys
- Table A- 8 Temperatures 1,200° F and Above
- Table A- 9 Titanium and Titanium Alloys
- Table A- 10 Bolts, Nuts, and Studs
- MANDATORY APPENDIX B THERMAL EXPANSION DATA [Go to Page]
- Table B- 1 Thermal Expansion Data
- Table B- 1 ( SI) Thermal Expansion Data
- MANDATORY APPENDIX C MODULI OF ELASTICITY [Go to Page]
- Table C- 1 Moduli of Elasticity for Ferrous Material
- Table C- 1 ( SI) Moduli of Elasticity for Ferrous Material
- Table C- 2 Moduli of Elasticity for Nonferrous Material
- Table C- 2 ( SI) Moduli of Elasticity for Nonferrous Material
- MANDATORY APPENDIX D FLEXIBILITY AND STRESS INTENSIFICATION FACTORS [Go to Page]
- Table D- 1 Flexibility and Stress Intensification Factors
- Table D- 1 Flexibility and Stress Intensification Factors ( Cont'd)
- Table D- 1 Flexibility and Stress Intensification Factors ( Cont'd)
- Table D- 1 Flexibility and Stress Intensification Factors ( Cont'd)
- MANDATORY APPENDIX F REFERENCED STANDARDS
- MANDATORY APPENDIX G NOMENCLATURE
- MANDATORY APPENDIX H PREPARATION OF TECHNICAL INQUIRIES [Go to Page]
- H- 1 INTRODUCTION
- H- 2 REQUIREMENTS
- H- 3 SUBMITTAL
- MANDATORY APPENDIX J QUALITY CONTROL REQUIREMENTS FOR BOILER EXTERNAL PIPING ( BEP) [Go to Page]
- J- 1 QUALITY CONTROL SYSTEM
- MANDATORY APPENDIX N RULES FOR NONMETALLIC PIPING AND PIPING LINED WITH NONMETALS [Go to Page]
- Chapter N- I Scope and Definitions [Go to Page]
- N- 100 GENERAL
- Chapter N- II Design [Go to Page]
- N- 101 DESIGN CONDITIONS
- N- 102 DESIGN CRITERIA
- N- 103 CRITERIA FOR PRESSURE DESIGN
- N- 104 PRESSURE DESIGN OF COMPONENTS
- N- 105 PIPE
- N- 106 FITTINGS
- N- 107 VALVES
- N- 110 GENERAL
- N- 111 BONDED JOINTS
- N- 112 FLANGED JOINTS
- N- 113 EXPANDED OR ROLLED JOINTS
- N- 114 THREADED JOINTS
- N- 115 FLARED LINING JOINTS FOR METALLIC PIPING LINED WITH NONMETALS
- N- 116 BELL END JOINTS
- N- 118 PROPRIETARY JOINTS
- N- 119 EXPANSION AND FLEXIBILITY
- N- 120 LOADS ON PIPE- SUPPORTING ELEMENTS
- N- 121 DESIGN OF PIPE- SUPPORTING ELEMENTS
- N- 122 DESIGN REQUIREMENTS PERTAINING TO SPECIFIC PIPING SYSTEMS
- Chapter N- III Materials [Go to Page]
- N- 123 GENERAL REQUIREMENTS
- N- 124 LIMITATIONS ON MATERIALS
- N- 125 MISCELLANEOUS MATERIALS: JOINING AND AUXILIARY MATERIALS
- Chapter N- IV Specifications and Standard Data [Go to Page]
- N- 126 MATERIAL SPECIFICATIONS AND STANDARDS
- Chapter N- V Fabrication, Assembly, and Erection [Go to Page]
- N- 127 BONDING PLASTIC JOINTS
- N- 129 BENDING AND FORMING
- N- 135 ASSEMBLY AND ERECTION
- Chapter N- VI Examination, Inspection, and Testing [Go to Page]
- N- 136 GENERAL
- N- 136.1 Inspection
- N- 136.3 Examination
- N- 137 PRESSURE TESTS
- NONMANDATORY APPENDIX II RULES FOR THE DESIGN OF SAFETY VALVE INSTALLATIONS1 [Go to Page]
- II- 1 SCOPE AND DEFINITION
- II- 2 LOADS
- II- 3 BENDING MOMENT COMPUTATIONS
- II- 4 LOADING CRITERIA AND STRESS COMPUTATION
- II- 5 DESIGN CONSIDERATIONS
- II- 6 SAMPLE DESIGNS
- II- 7 SAMPLE PROBLEM ( SEE FIGS. II- 7- 1 AND II- 7- 2)
- NONMANDATORY APPENDIX III DELETED
- NONMANDATORY APPENDIX IV CORROSION CONTROL FOR ASME B31.1 POWER PIPING SYSTEMS [Go to Page]
- IV- 1 GENERAL
- IV- 2 EXTERNAL CORROSION CONTROL FOR BURIED OR SUBMERGED PIPELINES
- IV- 3 INTERNAL CORROSION CONTROL
- IV- 4 EXTERNAL CORROSION CONTROL FOR PIPING EXPOSED TO THE ATMOSPHERE
- IV- 5 MONITORING OF PIPE WALL THINNING DUE TO EROSION/ CORROSION
- NONMANDATORY APPENDIX V RECOMMENDED PRACTICE FOR OPERATION, MAINTENANCE, AND MODIFICATION OF POWER PIPING SYSTEMS [Go to Page]
- V- 1 DEFINITIONS1
- V- 2 GENERAL
- V- 3 OPERATING AND MAINTENANCE PROGRAM
- V- 4 REQUIREMENTS OF THE OPERATING, MAINTENANCE, AND MODIFICATION PROCEDURES
- V- 5 PIPING AND PIPE SUPPORT MAINTENANCE PROGRAM AND PERSONNEL REQUIREMENTS
- V- 6 MATERIAL HISTORY
- V- 7 CPS POSITION HISTORY
- V- 8 PIPING CORROSION
- V- 9 PIPING ADDITION TO EXISTING PLANTS
- V- 10 SAFETY, SAFETY RELIEF, AND RELIEF VALVES
- V- 11 DYNAMIC LOADING
- V- 12 CREEP
- V- 13 RERATING PIPING SYSTEMS
- NONMANDATORY APPENDIX VI APPROVAL OF NEW MATERIALS
- NONMANDATORY APPENDIX VII PROCEDURES FOR THE DESIGN OF RESTRAINED UNDERGROUND PIPING [Go to Page]
- VII- 1 SCOPE AND DEFINITIONS
- VII- 2 LOADS
- VII- 3 CALCULATIONS
- VII- 4 COMPUTER MODELING OF BURIED PIPING
- VII- 5 ALLOWABLE STRESS IN BURIED PIPE
- VII- 6 EXAMPLE CALCULATIONS
- NONMANDATORY APPENDIX VIII GUIDELINES FOR DETERMINING IF LOW- TEMPERATURE SERVICE REQUIREMENTS APPLY
- INDEX
- ASME B31.1 INTERPRETATIONS VOLUME 47
- B31.1
- B31.1 — Cases No. 37 [Go to Page]