R ules for Construction of Nuclear Facility Components 2015 ASME Boiler and Pressure Vessel Code An International Code Div ision — Su bs e c t i o n N D Class Comp on en ts This copy downloaded on 2015-07-14 21:38:51 -0500 by authorized user logan ahlstrom SECTION III Copyrighted material licensed to University of Toronto by Thomson Scientific, Inc (www.techstreet.com) ASME B PVC.III.1.ND -2015 No fu 2015 ASME Boiler & Pressure Vessel Code 2015 Edition July 1, 2015 III Division - Subsection ND Class Components ASME Boiler and Pressure Vessel Committee on Nuclear Power Two Park Avenue • New York, NY • 10016 USA This copy downloaded on 2015-07-14 21:38:51 -0500 by authorized user logan ahlstrom RULES FOR CONSTRUCTION OF NUCLEAR FACILITY COMPONENTS Copyrighted material licensed to University of Toronto by Thomson Scientific, Inc (www.techstreet.com) AN INTERNATIONAL CODE No fu This international code or standard was developed under procedures accredited as meeting the criteria for American National Standards and it is an American National Standard The Standards Committee that approved the code or standard was balanced to assure that individuals from competent and concerned interests have had an opportunity to participate The proposed code or standard was made available for public review and comment that provides an opportunity for additional public input from industry, academia, regulatory agencies, and the public-at-large ASME does not “approve,” “rate,” or “endorse” any item, construction, proprietary device, or activity ASME does not take any position with respect to the validity of any patent rights asserted in connection with any items mentioned in this document, and does not undertake to insure anyone utilizing a standard against liability for infringement of any applicable letters patent, nor assume any such liability Users of a code or standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, is entirely their own responsibility Participation by federal agency representative(s) or person(s) affiliated with industry is not to be interpreted as government or industry endorsement of this code or standard ASME accepts responsibility for only those interpretations of this document issued in accordance with the established ASME procedures and policies, which precludes the issuance of interpretations by individuals The endnotes and preamble in this document (if any) are part of this American National Standard ASME collective membership mark Certification Mark “ASME” is the trademark of The American Society of Mechanical Engineers No part of this document may be reproduced in any form, in an electronic retrieval system or otherwise, without the prior written permission of the publisher Library of Congress Catalog Card Number: 56-3934 Printed in the United States of America Adopted by the Council of The American Society of Mechanical Engineers, 1914; latest edition 2015 The American Society of Mechanical Engineers Two Park Avenue, New York, NY 10016-5990 Copyright © 2015 by THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS All rights reserved This copy downloaded on 2015-07-14 21:38:51 -0500 by authorized user logan ahlstrom The above ASME symbol is registered in the U.S Patent Office Copyrighted material licensed to University of Toronto by Thomson Scientific, Inc (www.techstreet.com) Date of Issuance: July 1, 2015 No fu List of Sections Foreword Statement of Policy on the Use of the Certification Mark and Code Authorization in Advertising Statement of Policy on the Use of ASME Marking to Identify Manufactured Items Submittal of Technical Inquiries to the Boiler and Pressure Vessel Standards Committees Personnel Organization of Section III Summary of Changes List of Changes in Record Number Order Cross-Referencing and Stylistic Changes in the Boiler and Pressure Vessel Code xii xiv xvi xvi xvii xix xxxvi xxxix xlii xliii Article ND-1000 ND-1100 ND-1130 Introduction Scope Boundaries of Jurisdiction Applicable to This Subsection 1 Article ND-2000 ND-2100 ND-2110 ND-2120 ND-2130 ND-2140 ND-2150 ND-2160 ND-2170 ND-2180 ND-2190 ND-2200 ND-2210 ND-2220 Material General Requirements for Material Scope of Principal Terms Employed Pressure Retaining Material Certification of Material Welding Material Material Identification Deterioration of Material in Service Heat Treatment to Enhance Impact Properties Procedures for Heat Treatment of Material Nonpressure‐Retaining Material Material Test Coupons and Specimens for Ferritic Steel Material Heat Treatment Requirements Procedure for Obtaining Test Coupons and Specimens for Quenched and Tempered Material Fracture Toughness Requirements for Material Material to Be Impact Tested Impact Test Procedures Test Requirements and Acceptance Standards Number of Impact Tests Required Retests Calibration of Instruments and Equipment Welding Material General Requirements Required Tests Weld Metal Tests Storage and Handling of Welding Material Examination and Repair of Pressure-Retaining Material Pressure Retaining Material Examination and Repair of Plate Examination and Repair of Forgings and Bars Examination and Repair of Seamless and (Welded Without Filler Metal) Tubular Products and Fittings Examination and Repair of Tubular Products and Fittings Welded With Filler Metal Examination and Repair of Statically and Centrifugally Cast Products 6 6 8 8 8 9 ND-2560 ND-2570 iii 12 12 12 12 13 14 15 15 15 16 17 19 19 19 19 21 22 23 23 This copy downloaded on 2015-07-14 21:38:51 -0500 by authorized user logan ahlstrom ND-2300 ND-2310 ND-2320 ND-2330 ND-2340 ND-2350 ND-2360 ND-2400 ND-2410 ND-2420 ND-2430 ND-2440 ND-2500 ND-2510 ND-2530 ND-2540 ND-2550 Copyrighted material licensed to University of Toronto by Thomson Scientific, Inc (www.techstreet.com) TABLE OF CONTENTS No fu Article ND-3000 ND-3100 ND-3110 ND-3120 ND-3130 ND-3300 ND-3310 ND-3320 ND-3330 ND-3350 ND-3360 ND-3400 ND-3410 ND-3420 ND-3430 ND-3440 ND-3450 ND-3500 ND-3510 ND-3520 ND-3530 ND-3590 ND-3600 ND-3610 ND-3620 ND-3640 ND-3650 ND-3660 ND-3670 ND-3690 ND-3700 ND-3720 ND-3800 ND-3810 ND-3820 ND-3830 ND-3840 ND-3850 ND-3860 ND-3900 ND-3910 ND-3920 ND-3930 ND-3940 Design General Design Loading Criteria Special Considerations General Design Rules Vessel Design General Requirements Design Considerations Openings and Reinforcement Design of Welded Construction Special Vessel Requirements Pump Design General Requirements for Centrifugal Pumps Definitions Design Requirements for Centrifugal Pumps Design of Specific Pump Types Design of Class Reciprocating Pumps Valve Design General Requirements Level B, C, and D Service Limits General Rules Pressure Relief Valve Design Piping Design General Requirements Design Considerations Pressure Design of Piping Products Analysis of Piping Systems Design of Welds Special Piping Requirements Dimensional Requirements for Piping Products Electrical and Mechanical Penetration Assemblies Design Rules Design of Atmospheric Storage Tanks General Requirements Design Considerations Bottom Design Shell Design Roof Design Tank Connections and Appurtenances Design of psi to 15 psi (0 kPa to 100 kPa) Storage Tanks General Requirements Design Considerations Design Procedure Alternate Rules for Axial Compressive Membrane Stresses in the Cylindrical Walls of psi to 15 psi Storage Tanks 31 31 31 32 32 38 38 38 60 65 72 75 75 76 77 78 96 96 96 99 101 101 106 106 108 109 125 130 130 141 142 142 142 142 142 142 143 144 154 160 160 160 168 Fabrication and Installation General Requirements Introduction Certification of Material and Fabrication by Component Certificate Holder Repair of Material 193 193 193 193 194 Article ND-4000 ND-4100 ND-4110 ND-4120 ND-4130 iv 29 30 30 30 177 This copy downloaded on 2015-07-14 21:38:51 -0500 by authorized user logan ahlstrom Examination of Bolts, Studs, and Nuts Material Organizations’ Quality System Programs Documentation and Maintenance of Quality System Programs Dimensional Standards Copyrighted material licensed to University of Toronto by Thomson Scientific, Inc (www.techstreet.com) ND-2580 ND-2600 ND-2610 ND-2700 No fu Article ND-5000 ND-5100 ND-5110 ND-5120 ND-5200 ND-5210 Examination General Requirements for Examination Procedures, Qualifications, and Evaluation Time of Examination of Welds and Weld Metal Cladding Examination of Welds Category A Vessel Welded Joints in Vessels and Similar Welded Joints in Piping, Pumps, and Valves Category B Vessel Welded Joints and Circumferential Welded Joints in Piping, Pumps, and Valves Category C Vessel Welded Joints and Similar Welded Joints in Piping, Pumps, and Valves Category D Vessel Welded Joints and Similar Joints in Piping, Pumps, and Valves Welded Stayed Construction Special Welds Welded Joints in Storage Tanks Acceptance Standards Radiographic Acceptance Standards Ultrasonic Acceptance Standards Magnetic Particle Acceptance Standards Liquid Penetrant Acceptance Standards Visual Acceptance Standards for Brazed Joints Gas and Bubble Formation Testing ND-5220 ND-5230 ND-5240 ND-5260 ND-5270 ND-5280 ND-5300 ND-5320 ND-5330 ND-5340 ND-5350 ND-5360 ND-5380 v 194 194 195 198 199 219 219 219 219 221 223 223 223 224 225 228 229 229 229 229 229 232 232 232 232 232 238 238 238 238 238 238 238 239 239 241 241 241 241 242 242 242 243 243 243 243 244 245 245 246 246 246 247 247 This copy downloaded on 2015-07-14 21:38:51 -0500 by authorized user logan ahlstrom Forming, Fitting, and Aligning Cutting, Forming, and Bending Forming Tolerances Fitting and Aligning Requirements for Weld Joints in Components Welding End Transitions — Maximum Envelope Welding Qualifications General Requirements Welding Qualifications, Records, and Identifying Stamps General Requirements for Welding Procedure Qualification Tests Special Qualification Requirements for Tube‐to‐Tubesheet Welds Rules Governing Making, Examining, and Repairing Welds Precautions to Be Taken Before Welding Rules for Making Welded Joints Welding of Attachments Repair of Weld Metal Defects Welded Test Plates Welded Stayed Construction Brazing Rules for Brazing Brazing Qualification Requirements Fitting and Aligning of Parts to Be Brazed Examination of Brazed Joints Heat Treatment Welding Preheat Requirements Postweld Heat Treatment Heat Treatment of Welds Other Than the Final Postweld Heat Treatment Heat Treatment After Bending or Forming for Pipe, Pumps, and Valves Heat Treatment of Electroslag Welds Mechanical Joints Bolting and Threading Bolting Flanged Joints Electrical and Mechanical Penetration Assemblies Expansion Joints Fabrication and Installation Rules for Bellows Expansion Joints Copyrighted material licensed to University of Toronto by Thomson Scientific, Inc (www.techstreet.com) ND-4200 ND-4210 ND-4220 ND-4230 ND-4240 ND-4250 ND-4300 ND-4310 ND-4320 ND-4330 ND-4350 ND-4400 ND-4410 ND-4420 ND-4430 ND-4450 ND-4460 ND-4470 ND-4500 ND-4510 ND-4520 ND-4530 ND-4540 ND-4600 ND-4610 ND-4620 ND-4630 ND-4650 ND-4660 ND-4700 ND-4710 ND-4720 ND-4730 ND-4800 ND-4810 No fu 247 247 247 247 247 248 248 248 249 249 249 Article ND-6000 ND-6100 ND-6110 ND-6120 ND-6200 ND-6210 ND-6220 ND-6230 ND-6240 ND-6300 ND-6310 ND-6320 ND-6330 ND-6400 ND-6410 ND-6500 ND-6510 ND-6520 ND-6530 ND-6600 ND-6610 ND-6620 ND-6900 ND-6910 ND-6920 ND-6930 Testing General Requirements Pressure Testing of Components, Appurtenances, and Systems Preparation for Testing Hydrostatic Tests Hydrostatic Test Procedure Hydrostatic Test Pressure Requirements Bellows Expansion Joints Provision for Embedded or Inaccessible Welded Joints in Piping Pneumatic Tests Pneumatic Testing Procedures Pneumatic Test Pressure Requirements Bellows Expansion Joints Pressure Test Gages Requirements for Pressure Test Gages Atmospheric and psig to 15 psig (0 kPa to 100 kPa) Storage Tanks Testing of Atmospheric Storage Tanks Testing of psig to 15 psig (0 kPa to 100 kPa) Storage Tanks Test Gages Special Test Pressure Situations Components Designed for External Pressure Pressure Testing of Combination Units Proof Tests to Establish Design Pressure General Requirements Procedures Procedure for Components Having Chambers of Special Shape Subject to Collapse 250 250 250 251 251 251 252 252 252 253 253 253 253 253 253 253 253 254 255 255 255 255 255 255 257 259 Article ND-7000 ND-7100 ND-7110 ND-7120 ND-7130 ND-7140 ND-7150 ND-7160 ND-7170 ND-7200 ND-7210 ND-7220 ND-7230 ND-7240 ND-7250 Overpressure Protection General Requirements Scope Integrated Overpressure Protection Verification of the Operation of Reclosing Pressure Relief Devices Installation Acceptable Pressure Relief Devices Unacceptable Pressure Relief Devices Permitted Use of Pressure Relief Devices Overpressure Protection Report Responsibility for Report Content of Report Certification of Report Review of Report After Installation Filing of Report 260 260 260 260 260 260 261 261 261 262 262 262 262 262 263 vi This copy downloaded on 2015-07-14 21:38:51 -0500 by authorized user logan ahlstrom Spot Examination of Welded Joints General Requirements Minimum Extent of Spot Radiographic Examination Standards for Spot Radiographic Examination Evaluation and Retests Qualifications and Certification of Nondestructive Examination Personnel General Requirements Personnel Qualification, Certification, and Verification Records Examination Requirements for Expansion Joints Bellows Expansion Joints Copyrighted material licensed to University of Toronto by Thomson Scientific, Inc (www.techstreet.com) ND-5400 ND-5410 ND-5420 ND-5430 ND-5440 ND-5500 ND-5510 ND-5520 ND-5530 ND-5700 ND-5720 No fu 263 263 263 264 264 264 264 264 264 265 266 266 267 267 267 267 268 268 268 269 269 273 275 278 279 279 280 280 280 Article ND-8000 ND-8100 Nameplates, Stamping With Certification Mark, and Reports General Requirements 281 281 FIGURES ND-1132.2-1 ND-1132.2-2 ND-1132.2-3 ND-2433.1-1 ND-2575.2-1 ND-3133.4-1 ND-3133.7-1 ND-3324.2-1 ND-3324.11(a)(6)-1 ND-3325-1 ND-3326.1-1 ND-3329.1(e)-1 ND-3329.6(b)-1 ND-3329.6(b)-2 ND-3329.6(b)-3 ND-3329.6(d)-1 ND-3329.6(d)-2 ND-3329.6(g)-1 ND-3332.2-1 ND-3335.1(b)-1 Attachments in the Component Support Load Path that Do Not Perform a Pressure-Retaining Function Attachments that Do Not Perform a Pressure-Retaining Function and Are Not in the Component Support Load Path Attachments That Perform a Pressure-Retaining Function Delta Ferrite Content Typical Pressure-Retaining Parts of Pumps and Valves Length L of Some Typical Conical Sections Chart for Determining Wall Thickness of Tubes Under External Pressure Principal Dimensions of Typical Heads Large Head Openings, Reverse Curve, and Conical Shell Reducer Sections Some Acceptable Types of Unstayed Flat Heads and Covers Spherically Dished Covers With Bolting Flanges Acceptable Proportions for Ends or Through Stays Example of Tube Spacing With Pitch of Holes Equal in Every Row Example of Tube Spacing With Pitch of Holes Unequal in Every Second Row Example of Tube Spacing With Pitch of Holes Varying in Every Second and Third Row Example of Tube Spacing With Tube Holes on Diagonal Lines Diagram for Determining the Efficiency of Longitudinal and Diagonal Ligaments Between Openings in Cylindrical Shells Diagram for Determining Equivalent Longitudinal Efficiency of Diagonal Ligaments Chart for Determining Value of F Some Representative Configurations Describing the t e Reinforcement Dimension vii 20 27 37 39 43 47 50 53 55 56 57 57 57 58 59 61 63 This copy downloaded on 2015-07-14 21:38:51 -0500 by authorized user logan ahlstrom Relieving Capacity Requirements Expected System Pressure Transient Conditions Unexpected System Excess Pressure Transient Conditions System Faulted Conditions Set Pressures of Pressure Relief Devices Set Pressure Limitations for Expected System Pressure Transient Conditions Set Pressure Limitations for Unexpected System Excess Pressure Transient Conditions Operating and Design Requirements for Pressure and Vacuum Relief Valves Safety, Safety Relief, and Relief Valves Pilot Operated Pressure Relief Valves Power Actuated Pressure Relief Valves Safety and Safety Relief Valves With Auxiliary Actuating Devices Vacuum Relief Valves Alternative Test Media Nonreclosing Pressure Relief Devices Rupture Disk Devices Installation Requirements Certification Responsibility for Certification of Pressure and Vacuum Relief Valves Responsibility for Certification of Nonreclosing Pressure Relief Devices Capacity Certification of Pressure Relief Valves — Compressible Fluids Capacity Certification of Pressure Relief Valves — Incompressible Fluids Capacity Certification of Vacuum Relief Valves Capacity Determination of Rupture Disk Devices Marking, Stamping With Certification Mark, and Data Reports Pressure and Vacuum Relief Valves Rupture Disk Devices Pressure Relief Valve in Combination With Rupture Disk Devices Certificate of Authorization to Use Certification Mark Copyrighted material licensed to University of Toronto by Thomson Scientific, Inc (www.techstreet.com) ND-7300 ND-7310 ND-7320 ND-7330 ND-7400 ND-7410 ND-7420 ND-7500 ND-7510 ND-7520 ND-7530 ND-7540 ND-7550 ND-7560 ND-7600 ND-7610 ND-7620 ND-7700 ND-7710 ND-7720 ND-7730 ND-7740 ND-7750 ND-7760 ND-7800 ND-7810 ND-7820 ND-7830 ND-7840 No fu ND-3922.1-2 ND-3932.1-1 ND-3933.4(a)-1 ND-3933.5(d)-1 viii 64 64 66 66 70 73 76 77 78 78 79 79 80 80 80 81 82 82 82 83 83 84 84 84 85 86 87 88 89 92 95 97 100 102 103 105 110 113 114 116 117 118 121 127 139 155 156 157 158 163 164 170 174 176 This copy downloaded on 2015-07-14 21:38:51 -0500 by authorized user logan ahlstrom ND-3643.3(c)(1)-1 ND-3643.3(c)(1)-2 ND-3643.4(a)-1 ND-3647.2-1 ND-3653.3-1 ND-3673.2(b)-2 ND-3861-1 ND-3862(a)-1 ND-3862(a)-2 ND-3863-1 ND-3922.1-1 Arrangement of Multiple Openings Minimum Depth for Flange of Flued Openings Welded Joint Locations Typical of Categories A, B, C, and D Typical Butt Joints Heads Attached to Shells Butt Welding of Plates of Unequal Thicknesses Typical Single Volute Casing Typical Double Volute Casing Minimum Tangential Inlet and Outlet Wall Thicknesses External and Internal Attachments Type A Pump Type A Pump Type A Pump Type B Pump Type C Pump Type C Pump Type D Pump Type E Pump Type F Pump Axially Split Casing, Volute Pump, Type G Axially Split Casing, Volute Pump, Type G Axially Split Casing, Volute Pump, Type G Typical Section of Type G Pump Typical Section of Type G Pump Typical Loads on Type G Pump Longitudinal Section Through Type H Pump Transverse Section Through Type H Pump Type K Pump Type K Pump Type L Pump Type L Pump Bowl Horizontal Single‐Acting Power Pump Liquid Ends Typical Sections of Valve Bodies Typical Pressure Relief Devices Typical Pressure Relief Devices Valve Nozzle Examples of Reversing and Nonreversing Dynamic Loads Typical Welded Branch Connections Typical Right Angle Branch Connections Made Using a Fillet Weld or a Partial Penetration Weld Reinforcement of Branch Connections Some Representative Configurations Describing the t e Reinforcement Dimension Reinforced Extruded Outlets Types of Permanent Blanks Reducing or Full Outlet Branch Connections, or Tees Branch Connection Nomenclature Roof Manholes Flanged Roof Nozzles Screwed or Socket Weld Roof Nozzles Welded Bottom Outlet Elbow Biaxial Stress Chart for Combined Tension and Compression, 30,000 psi to 38,000 psi (205 MPa to 260 MPa) Yield Strength Steels Reduction of Design Stresses Required to Allow for Biaxial Stresses of Opposite Sign Some Typical Free Body Diagrams for Certain Shapes of Tanks Compression Ring Region Permissible Details of Compression Ring Construction Copyrighted material licensed to University of Toronto by Thomson Scientific, Inc (www.techstreet.com) ND-3335.2-1 ND-3335.3(b)-1 ND-3351-1 ND-3352-1 ND-3358.1(a)-1 ND-3361.1-1 ND-3423-1 ND-3423-2 ND-3433.4-1 ND-3436(c)-1 ND-3441.1-1 ND-3441.1-2 ND-3441.1(a)-1 ND-3441.2-1 ND-3441.3-1 ND-3441.3-2 ND-3441.4(a)-1 ND-3441.5-1 ND-3441.6(a)-1 ND-3441.7(a)-1 ND-3441.7(a)-2 ND-3441.7(c)-1 ND-3441.7(c)(2)-1 ND-3441.7(c)(2)-2 ND-3441.7(c)(2)-3 ND-3441.8-1 ND-3441.8-2 ND-3441.9-1 ND-3441.9-2 ND-3441.10-1 ND-3441.10-2 ND-3451(a)-1 ND-3521-1 ND-3591.1-1 ND-3591.1-2 ND-3595.3-1 ND-3622-1 ND-3643.2(b)-1 ND-3643.2(b)-2 No fu ND-3944-1M ND-3944-2 ND-3944-2M ND-3944-3 ND-3944-3M ND-3944-4 ND-3944-4M ND-3944-5 ND-3944-5M ND-3944-6M ND-3947-1 ND-4221.1-1 ND-4221.2(a)-1 ND-4221.2(a)-2 ND-4233-1 ND-4243-1 ND-4243.1-1 ND-4244(a)-1 ND-4244(b)-1 ND-4244(c)-1 ND-4244(d)-1 ND-4244(e)-1 ND-4244(e)-2 ND-4244(f)-1 ND-4244(g)-1 ND-4245-1 ND-4246.1(a)-1 ND-4246.3-1 ix 180 181 182 183 184 185 186 187 188 189 190 191 192 196 196 197 199 201 203 204 205 206 207 208 209 210 211 212 214 215 This copy downloaded on 2015-07-14 21:38:51 -0500 by authorized user logan ahlstrom ND-3944-6 Design Factor Times Allowable Axial Membrane Compressive Stress Versus Radius Over Thickness for Ferrous Materials With Yield Strengths of 25 ksi at Temperatures ≤ 300°F Design Factor Times Allowable Axial Membrane Compressive Stress Versus Radius Over Thickness for Ferrous Materials With Yield Strengths of 175 MPa at Temperatures ≤ 150°C Design Factor Times Allowable Axial Membrane Compressive Stress Versus Radius Over Thickness for Ferrous Materials With Yield Strengths of 30 ksi at Temperatures ≤ 300°F Design Factor Times Allowable Axial Membrane Compressive Stress Versus Radius Over Thickness for Ferrous Materials With Yield Strengths of 210 MPa at Temperatures ≤ 150°C Design Factor Times Allowable Axial Membrane Compressive Stress Versus Radius Over Thickness for Ferrous Materials With Yield Strengths of 35 ksi at Temperatures ≤ 300°F Design Factor Times Allowable Axial Membrane Compressive Stress Versus Radius Over Thickness for Ferrous Materials With Yield Strengths of 245 MPa at Temperatures ≤ 150°C Design Factor Times Allowable Axial Membrane Compressive Stress Versus Radius Over Thickness for Ferrous Materials With Yield Strengths of 40 ksi at Temperatures ≤ 300°F Design Factor Times Allowable Axial Membrane Compressive Stress Versus Radius Over Thickness for Ferrous Materials With Yield Strengths of 280 MPa at Temperatures ≤ 150°C Design Factor Times Allowable Axial Membrane Compressive Stress Versus Radius Over Thickness for Ferrous Materials With Yield Strengths of 45 ksi at Temperatures ≤ 300°F Design Factor Times Allowable Axial Membrane Compressive Stress Versus Radius Over Thickness for Ferrous Materials With Yield Strengths of 315 MPa at Temperatures ≤ 150°C Design Factor Times Allowable Axial Membrane Compressive Stress Versus Radius Over Thickness for Ferrous Materials With Yield Strengths of 50 ksi at Temperatures ≤ 300°F Design Factor Times Allowable Axial Membrane Compressive Stress Versus Radius Over Thickness for Ferrous Materials With Yield Strengths of 350 MPa at Temperatures ≤ 150°C Meridional Straightness Tolerance Maximum Difference in Cross‐Sectional Diameters Maximum Permissible Deviation e From a True Circular Form Maximum Arc Length for Determining Plus or Minus Deviation Butt Weld Alignment and Mismatch Tolerances for Unequal I.D and O.D When Components Are Welded From One Side and Fairing Is Not Performed Attachment of Pressure Parts to Plates to Form a Corner Joint Typical Flat Heads, and Supported and Unsupported Tubesheets With Hubs Nozzles, and Branch and Piping Connections Joined by Full Penetration Butt Welds Nozzles, and Branch and Piping Connections Joined by Full Penetration Corner Welds Deposited Weld Metal Used as Reinforcement of Openings for Nozzles, and Branch and Piping Connections Some Acceptable Types of Welded Nozzles, and Branch and Piping Connections Some Acceptable Types of Welded Nozzles Some Acceptable Types of Small Fittings Tube Connections Some Acceptable Types of Welded Nozzles, and Branch and Piping Connections Attachment Welds Typical Bottom and Bottom‐to‐Shell Joints Typical Roof and Roof‐to‐Shell Joints Copyrighted material licensed to University of Toronto by Thomson Scientific, Inc (www.techstreet.com) ND-3944-1 No fu ... Article ND- 30 00 ND- 31 00 ND- 31 10 ND- 31 20 ND- 31 30 ND- 33 00 ND- 33 10 ND- 33 20 ND- 33 30 ND- 33 50 ND- 33 60 ND- 34 00 ND- 34 10 ND- 34 20 ND- 34 30 ND- 34 40 ND- 34 50 ND- 35 00 ND- 35 10 ND- 35 20 ND- 35 30 ND- 35 90 ND- 36 00 ND- 36 10... ND- 33 35.2-1 ND- 33 35 .3( b)-1 ND- 33 51-1 ND- 33 52-1 ND- 33 58.1(a)-1 ND- 33 61.1-1 ND- 34 23- 1 ND- 34 23- 2 ND- 34 33. 4-1 ND- 34 36(c)-1 ND- 34 41.1-1 ND- 34 41.1-2 ND- 34 41.1(a)-1 ND- 34 41.2-1 ND- 34 41 .3- 1 ND- 34 41 .3- 2... ND- 1 132 .2-1 ND- 1 132 .2-2 ND- 1 132 .2 -3 ND- 2 433 .1-1 ND- 2575.2-1 ND- 31 33. 4-1 ND- 31 33. 7-1 ND- 33 24.2-1 ND- 33 24.11(a)(6)-1 ND- 33 25-1 ND- 33 26.1-1 ND- 33 29.1(e)-1 ND- 33 29.6(b)-1 ND- 33 29.6(b)-2 ND- 33 29.6(b) -3 ND- 33 29.6(d)-1