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ASME BPVC III 1 NCD 2021

ASME BPVC III 1 NCD 2021

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ASME BPVC – III – 1 – NCD -2021 BPVC Section III, Rules for Construction of Nuclear Facility Components, Division 1, Subsection NCD, Class 2 and 3 Components

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ASME 2021 400
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This Subsection contains requirements for the material, design, fabrication, examination, testing and overpressure protection of items which are intended to conform to the requirements for Class 2 and Class 3 construction. The rules of Subsection NCD cover the requirements for assuring the structural integrity of items. Careful application of this Section will help users to comply with applicable regulations within their jurisdictions, while achieving the operational, cost and safety benefits to be gained from the many industry best-practices detailed within these volumes.

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PDF Pages PDF Title
5 TABLE OF CONTENTS
13 LIST OF SECTIONS
14 INTERPRETATIONS
CODE CASES
15 FOREWORD
17 STATEMENT OF POLICY ON THE USE OF THE ASME SINGLE CERTIFICATION MARK AND CODE AUTHORIZATION IN ADVERTISING
STATEMENT OF POLICY ON THE USE OF ASME MARKING TO IDENTIFY MANUFACTURED ITEMS
18 SUBMITTAL OF TECHNICAL INQUIRIES TO THE BOILER AND PRESSURE VESSEL STANDARDS COMMITTEES
21 PERSONNEL
42 ORGANIZATION OF SECTION III
1 GENERAL
43 2 SUBSECTIONS
3 ARTICLES
4 SUBARTICLES
5 SUBSUBARTICLES
6 PARAGRAPHS
7 SUBPARAGRAPHS
8 SUBSUBPARAGRAPHS
44 9 REFERENCES
46 SUMMARY OF CHANGES
48 NC- and ND- Paragraphs, Figures, and Tables Renumbered For Subsection NCD
51 CROSS-REFERENCING AND STYLISTIC CHANGES IN THE BOILER AND PRESSURE VESSEL CODE
53 Article NCD-1000 Introduction
NCD-1100 Scope
NCD-1110 Aspects of Construction Covered by These Rules
NCD-1120 Temperature Limits
NCD-1130 Boundaries of Jurisdiction Applicable to This Subsection
55 Figures
Figure NCD-1132.2-1 Attachments in the Component Support Load Path That Do Not Perform a Pressure-Retaining Function
56 Figure NCD-1132.2-2 Attachments That Do Not Perform a Pressure-Retaining Function and Are Not in the Component Support Load Path (Nonstructural Attachments)
57 Figure NCD-1132.2-3 Attachments That Perform a Pressure-Retaining Function
58 Article NCD-2000 Material
NCD-2100 General Requirements for Material
NCD-2110 Scope of Principal Terms Employed
NCD-2120 Pressure-Retaining Material
60 NCD-2130 Certification of Material
NCD-2140 Welding Materials
NCD-2150 Material Identification
61 NCD-2160 Deterioration of Material in Service
NCD-2170 Heat Treatment to Enhance Impact Properties
NCD-2180 Procedures for Heat Treatment of Material
NCD-2190 Non-Pressure‐Retaining Material
NCD-2200 Material Test Coupons and Specimens for Ferritic Steel Material
NCD-2210 Heat Treatment Requirements
62 NCD-2220 Procedure for Obtaining Test Coupons and Specimens for Quenched and Tempered Material
65 NCD-2300 Fracture Toughness Requirements for Material
NCD-2310 Material to Be Impact Tested
66 NCD-2320 Impact Test Procedures
NCD-2330 Test Requirements and Acceptance Standards
Tables
Table NCD-2311-1 For Class 2 Only — Exemptions From Impact Testing Under NCD-2311(a)(8)
67 Table NCD-2311-2 For Class 3 Only — Exemptions From Impact Testing Under NCD-2311(a)(9)
Table NCD-2332.1-1 For Class 2 Only — Required Cv Lateral Expansion Values for Pressure-Retaining Material Other Than Bolting Material
68 Table NCD-2332.1-2 For Class 2 Only — Required Cv Energy Values for Pressure-Retaining Material Other Than Bolting Material
Table NCD-2332.3-1 For Class 2 Only — Required Cv Values for Bolting Material Tested in Accordance With NCD-2332.3
69 NCD-2340 Number of Impact Tests Required
Table NCD-2333.1-1 For Class 3 Only — Required Cv Lateral Expansion Values for Pressure-Retaining Material Other Than Bolting Material
70 Table NCD-2333.1-2 For Class 3 Only — Required Cv Energy Values for Pressure-Retaining Material Other Than Bolting Material
Table NCD-2333.2-1 For Class 3 Only — Required Cv Values for Bolting Material
71 NCD-2350 Retests
72 NCD-2360 Calibration of Instruments and Equipment
NCD-2400 Welding Material
NCD-2410 General Requirements
NCD-2420 Required Tests
73 NCD-2430 Weld Metal Tests
74 Table NCD-2432.1-1 Sampling of Welding Materials for Chemical Analysis
Table NCD-2432.2-1 Welding Material Chemical Analysis
75 Figure NCD-2433.1-1 Weld Metal Delta Ferrite Content
76 NCD-2440 Storage and Handling of Welding Material
NCD-2500 Examination and Repair of Pressure-Retaining Material
NCD-2510 Pressure-Retaining Material
NCD-2530 Examination and Repair of Plate
77 NCD-2540 Examination and Repair of Forgings and Bars
78 NCD-2550 Examination and Repair of Seamless and Welded (Without Filler Metal) Tubular Products and Fittings
80 NCD-2560 Examination and Repair of Tubular Products and Fittings Welded With Filler Metal
81 NCD-2570 Examination and Repair of Statically and Centrifugally Cast Products
82 Table NCD-2571.1-1 Required Examinations for Class 2 Castings
83 Table NCD-2571.2-1 Required Examinations for Class 3 Castings
87 Figure NCD-2575.2-1 Typical Pressure-Retaining Parts of Pumps and Valves
89 NCD-2580 Examination of Bolts, Studs, and Nuts
NCD-2600 Material Organizations’ Quality System Programs
NCD-2610 Documentation and Maintenance of Quality System Programs
NCD-2700 Dimensional Standards
90 Article NCD-3000 Design
NCD-3100 General Design
NCD-3110 Loading Criteria
91 NCD-3120 Special Considerations
NCD-3130 General Design Rules
95 Figure NCD-3133.4-1 For Class 3 Only — Length L of Some Typical Conical Sections
98 NCD-3200 Alternative Design Rules for Class 2 Vessels
NCD-3210 General Requirements
99 Figure NCD-3133.8-1 Chart for Determining Wall Thickness of Tubes Under External Pressure
101 Table NCD-3215.1(a)-1 Pressure and Temperature Relationships
102 Table NCD-3217-1 Stress Intensity k Factors for Design and Service Load Combinations
103 Figure NCD-3217-1 Example of Acceptable Local Primary Membrane Stress Due to Pressure
106 NCD-3220 Design Considerations
108 Figure NCD-3224.6-1 Design Curves for Torispherical Heads and 2:1 Ellipsoidal Heads for Use With NCD-3224.8 and NCD-3224.6
110 Figure NCD-3224.13(b)(6)(-a)-1 Inherent Reinforcement for Large End of Cone–Cylinder Junction
111 Figure NCD-3224.13(b)(6)(-b)-1 Values for Q for Large End of Cone–Cylinder Junction
112 Figure NCD-3224.13(c)(6)(-a)-1 Inherent Reinforcement for Small End of Cone–Cylinder Junction
113 Figure NCD-3224.13(c)(6)(-b)-1 Values for Q for Small End of Cone–Cylinder Junction
114 Figure NCD-3224.13(d)-1 Cone–Cylinder Junction at Small End Treated as Opening
115 NCD-3230 Openings and Their Reinforcement
116 Figure NCD-3225-1 Typical Flat Heads and Supported and Unsupported Tubesheets With Hubs
117 Figure NCD-3225-2 Some Acceptable Types of Unstayed Flat Heads and Covers
118 Figure NCD-3225-3 Attachment of Pressure Parts to Plates to Form a Corner Joint
121 Figure NCD-3234.2(a)-1 Nozzle Nomenclature and Dimensions Depicts Configuration Only
122 Figure NCD-3239.1(b)-1 Examples of Acceptable Transition Details
123 Table NCD-3239.3(a)-1 Required Minimum Reinforcing Area, Ar
124 NCD-3240 Vessels Under External Pressure
Figure NCD-3239.4-1 Limits of Reinforcing Zone
Table NCD-3239.7-1 Stress Indices for Internal Pressure Loading
126 NCD-3250 Welded Joints
128 NCD-3260 Special Vessel Requirements
130 Table NCD-3266-1 Minimum Number of Pipe Threads for Connections
131 NCD-3300 Vessel Design
NCD-3310 General Requirements
NCD-3320 Design Considerations
Table NCD-3321-1 Stress Limits for Design and Service Loadings
132 Table NCD-3321-2 Classification of Stress in Vessels for Some Typical Cases
133 Figure NCD-3324.2-1 Principal Dimensions of Typical Heads
134 Table NCD-3324.2-1 Values of Factor K
136 Table NCD-3324.8(b)-1 Values of Factor M
138 Figure NCD-3324.11(a)(6)-1 Large Head Openings, Reverse Curve, and Conical Shell Reducer Sections
Table NCD-3324.11(b)(2)-1 Values of Δ for Junctions at the Large Cylinder for α ≤ 30 deg
Table NCD-3324.11(b)(3)-1 Values of Δ for Junctions at the Small Cylinder for α ≤ 30 deg
140 Figure NCD-3325-1 Some Acceptable Types of Unstayed Flat Heads and Covers
144 Figure NCD-3326.1-1 Spherically Dished Covers With Bolting Flanges
146 Figure NCD-3329.1(b)-1 Example of Tube Spacing With Pitch of Holes Equal in Every Row
147 Figure NCD-3329.1(b)-2 Example of Tube Spacing With Pitch of Holes Unequal in Every Second Row
Figure NCD-3329.1(b)-3 Example of Tube Spacing With Pitch of Holes Varying in Every Second and Third Row
148 Figure NCD-3329.1(d)-1 Example of Tube Spacing With Tube Holes on Diagonal Lines
149 Figure NCD-3329.1(d)-2 Diagram for Determining the Efficiency of Longitudinal and Diagonal Ligaments Between Openings in Cylindrical Shells
151 Figure NCD-3329.1(g)-1 Diagram for Determining Equivalent Longitudinal Efficiency of Diagonal Ligaments
152 NCD-3330 Openings and Reinforcement
Figure NCD-3329.2.1-1 Acceptable Proportions for Ends or Through Stays
154 Figure NCD-3332.2-1 Chart for Determining Value of F
Table NCD-3332.2-1 Values of Spherical Radius Factor K1
156 Figure NCD-3335.1(b)-1 Some Representative Configurations Describing the te Reinforcement Dimension
157 Figure NCD-3335.2-1 Arrangement of Multiple Openings
158 NCD-3350 Design of Welded Construction
Figure NCD-3335.3(b)-1 Minimum Depth for Flange of Flued Openings
159 Figure NCD-3351-1 Welded Joint Locations Typical of Categories A, B, C, and D
160 Figure NCD-3352-1 Typical Butt Joints
164 Figure NCD-3358.1(a)-1 Heads Attached to Shells
166 NCD-3360 Special Vessel Requirements
167 Figure NCD-3361.1-1 Butt Welding of Plates of Unequal Thicknesses
Table NCD-3361.2.2-1 Minimum Number of Pipe Threads for Connections
169 NCD-3400 Pump Design
NCD-3410 General Requirements for Centrifugal Pumps
170 NCD-3420 Definitions
Table NCD-3416-1 Stress and Pressure Limits for Design and Service Loadings
171 NCD-3430 Design Requirements for Centrifugal Pumps
Figure NCD-3423-1 Typical Single Volute Casing
Figure NCD-3423-2 Typical Double Volute Casing
172 Figure NCD-3433.4-1 Minimum Tangential Inlet and Outlet Wall Thickness
173 NCD-3440 Design of Specific Pump Types
Figure NCD-3441.1-1 Type A Pump
174 Figure NCD-3441.1-2 Type A Pump
Figure NCD-3441.1(a)-1 Type A Pump
175 Figure NCD-3441.2-1 Type B Pump
Figure NCD-3441.3-1 Type C Pump
176 Figure NCD-3441.3-2 Type C Pump
177 Figure NCD-3441.4(a)-1 Type D Pump
Figure NCD-3441.5-1 Type E Pump
178 Figure NCD-3441.6(a)-1 Type F Pump
Figure NCD-3441.7(a)-1 Axially Split Casing, Volute Pump, Type G
179 Figure NCD-3441.7(a)-2 Axially Split Casing, Volute Pump, Type G
Figure NCD-3441.7(c)-1 Axially Split Casing, Volute Pump, Type G Section B–B Typical Highly Stressed Sections of Pump Case
180 Figure NCD-3441.7(c)(2)-1 Typical Section of Type G Pumps
Figure NCD-3441.7(c)(2)-2 Typical Section of Type G Pumps
181 Figure NCD-3441.7(c)(2)-3 Typical Loads on Type G Pumps
183 Figure NCD-3441.8-1 Longitudinal Section Through Type H Pump
Figure NCD-3441.8-2 Transverse Section Through Type H Pump
184 Figure NCD-3441.9-1 Type K Pump
185 Figure NCD-3441.9-2 Type K Pump
189 Figure NCD-3441.10-1 Type L Pump
191 Figure NCD-3441.10-2 Type L Pump Bowl
192 NCD-3450 Design of Class 2 Reciprocating Pumps
193 Figure NCD-3441.11-1 Type N Pump
194 Figure NCD-3451(a)-1 Horizontal Single‐Acting Power Pump Liquid Ends
195 NCD-3500 Valve Design
NCD-3510 General Requirements
197 NCD-3520 Service Loading Limits
198 Figure NCD-3521-1 Typical Sections of Valve Bodies
199 NCD-3530 General Rules
NCD-3590 Pressure Relief Valve Design
Table NCD-3521-1 Service Loading Limits
201 Figure NCD-3591.2-1 Typical Pressure Relief Devices
202 Figure NCD-3591.2-2 Typical Pressure Relief Devices
203 Figure NCD-3595.3-1 Valve Nozzle
Table NCD-3592.2(b)-1 Pressure Relief Devices Service Loading Limits
204 NCD-3600 Piping Design
NCD-3610 General Requirements
Table NCD-3611.2(e)-1 Stress Range Reduction Factors
206 Table NCD-3613.4-1 For Class 3 Only — Weld Joint Efficiency Factor
207 NCD-3620 Design Considerations
NCD-3640 Pressure Design of Piping Products
208 Figure NCD-3622-1 Examples of Reversing and Nonreversing Dynamic Loads
209 Table NCD-3641.1(a)-1 Values of A
211 Figure NCD-3643.2(b)-1 Typical Welded Branch Connections
212 Figure NCD-3643.2(b)-2 Typical Right Angle Branch Connections Made Using a Fillet Weld or a Partial Penetration Weld
214 Figure NCD-3643.3(c)(1)-1 Reinforcement of Branch Connections
215 Figure NCD-3643.3(c)(1)-2 Some Representative Configurations Describing the te Reinforcement Dimension
217 Figure NCD-3643.4(a)-1 Reinforced Extruded Outlets
219 Figure NCD-3647.2-1 Types of Permanent Blanks
224 NCD-3650 Analysis of Piping Designs
225 Figure NCD-3653.3-1 Reducing or Full Outlet Branch Connections, or Tees
229 NCD-3660 Design of Welds
NCD-3670 Special Piping Requirements
233 Table NCD-3673.2(b)-1 Stress Indices, Flexibility, and Stress Intensification Factors
239 Figure NCD-3673.2(b)-2 Branch Connection Nomenclature
241 NCD-3690 Dimensional Requirements for Piping Products
NCD-3700 Electrical and Mechanical Penetration Assemblies
NCD-3720 Design Rules
NCD-3800 Design of Atmospheric Storage Tanks
NCD-3810 General Requirements
NCD-3820 Design Considerations
242 NCD-3830 Bottom Design
NCD-3840 Shell Design
Table NCD-3821.5-1 Design and Service Limits
243 NCD-3850 Roof Design
246 Table NCD-3852.7-1 For Class 3 Aluminum Storage Tanks Only — Allowable Tensile Stresses for Roof Supports Tension on Net Section
247 Table NCD-3852.7-2 For Class 3 Aluminum Storage Tanks Only — Allowable Axial Compression Stresses for Roof Supports
249 Table NCD-3852.7-3 For Class 3 Aluminum Storage Tanks Only — Allowable Bending Stresses for Roof Supports Compression in Extreme Fibers of Shapes, Girders, and Built‐Up Members, Subjected to Bending
251 Table NCD-3852.7-4 For Class 3 Aluminum Storage Tanks Only — Allowable Shear Stresses for Roof Supports Shear in Webs of Beams and Girders
252 Table NCD-3852.7-5 For Class 3 Aluminum Storage Tanks Only — Allowable Shear and Tension Stresses for Bolts for Roof Supports
Table NCD-3852.7-6 For Class 3 Aluminum Storage Tanks Only — Allowable Bearing Stresses for Bolts for Roof Supports
253 NCD-3860 Tank Connections and Appurtenances
254 NCD-3900 Design of 0 psi to 15 psi (0 kPa to 100 kPa) Storage Tanks
NCD-3910 General Requirements
NCD-3920 Design Considerations
255 Figure NCD-3861-1 Roof Manholes
256 Figure NCD-3862(a)-1 Flanged Roof Nozzles
Table NCD-3861-1 Roof Manholes
Table NCD-3862(a)-1 Flanged Roof Nozzles
257 Figure NCD-3862(a)-2 Screwed or Socket Weld Roof Nozzles
Table NCD-3862(a)-2 Screwed or Socket Weld Roof Nozzles
258 Figure NCD-3863-1 Welded Bottom Outlet Elbow
Table NCD-3863-1 Welded Bottom Outlet Elbow
259 Table NCD-3865-1 Platforms and Walkways
Table NCD-3865-2 Stairways
260 Table NCD-3865-3 Stairway Rise, Run, and Angle Relationships
261 Table NCD-3921.8-1 Design and Service Limits for Steel Tanks
262 Figure NCD-3922.1-1 Biaxial Stress Chart for Combined Tension and Compression, 30,000 psi to 38,000 psi (205 MPa to 260 MPa) Yield Strength Steels
263 Figure NCD-3922.1-2 Reduction of Design Stresses Required to Allow for Biaxial Stresses of Opposite Sign
266 Table NCD-3923.1-1 Maximum Allowable Stress Values for Structural Members
268 NCD-3930 Design Procedure
269 Figure NCD-3932.1-1 Some Typical Free Body Diagrams for Certain Shapes of Tanks
270 Table NCD-3932.2(d)-1 Factors for Determining Values of R1 and R2 for 2:1 Ellipsoidal Roofs and Bottoms
274 Figure NCD-3933.4(a)-1 Compression Ring Region
276 Figure NCD-3933.5(d)-1 Permissible Details of Compression Ring Construction
277 NCD-3940 Alternate Rules for Axial Compressive Membrane Stresses in the Cylindrical Walls of 0 psi to 15 psi (0 kPa to 100 kPa) Storage Tanks
Table NCD-3933.5(h)-1 Some Values for k Based on n, θ
281 Figure NCD-3944-1 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
282 Figure NCD-3944-1M 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
283 Figure NCD-3944-2 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
284 Figure NCD-3944-2M 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
285 Figure NCD-3944-3 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
286 Figure NCD-3944-3M 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
287 Figure NCD-3944-4 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
288 Figure NCD-3944-4M 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
289 Figure NCD-3944-5 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
290 Figure NCD-3944-5M 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
291 Figure NCD-3944-6 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
292 Figure NCD-3944-6M 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
293 Figure NCD-3947-1 Meridional Straightness Tolerance
294 Article NCD-4000 Fabrication and Installation
NCD-4100 General Requirements
NCD-4110 Introduction
NCD-4120 Certification of Materials and Fabrication by Component Certificate Holder
295 NCD-4130 Repair of Material
NCD-4200 Forming, Cutting, and Aligning
NCD-4210 Cutting, Forming, and Bending
296 NCD-4220 Forming Tolerances
297 Figure NCD-4221.1-1 Maximum Difference in Cross‐Sectional Diameters
298 Figure NCD-4221.2(a)-1 Maximum Permissible Deviation e From a True Circular Form
299 Figure NCD-4221.2(a)-2 Maximum Arc Length for Determining Plus or Minus Deviation
300 NCD-4230 Fitting and Aligning
Table NCD-4232(a)-1 Maximum Allowable Offset in Final Welded Joints
301 NCD-4240 Requirements for Weld Joints in Components
Figure NCD-4233-1 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
303 Figure NCD-4243.1-1 For Class 2 Only — Acceptable Full Penetration Weld Details for Category C Joints
304 Figure NCD-4243.1-2 For Class 2 Only — Attachment of Pressure Parts to Plates to Form a Corner Joint
305 Figure NCD-4243.2-1 For Class 3 Only — Attachment of Pressure Parts to Plates to Form a Corner Joint
307 Figure NCD-4243.3-1 Typical Flat Heads and Supported and Unsupported Tubesheet With Hubs
308 Figure NCD-4244.1-1 Nozzles, Branch, and Piping Connections Joined by Full Penetration Butt Welds
309 Figure NCD-4244.1-2 Nozzles, Branch, and Piping Connections Joined by Full Penetration Corner Welds
310 Figure NCD-4244.1-3 Deposited Weld Metal Used as Reinforcement of Openings for Nozzles, Branch, and Piping Connections
311 Figure NCD-4244.1-4 Some Acceptable Types of Welded Nozzles, Branch, and Piping Connections
313 Figure NCD-4244.1-5 Some Acceptable Types of Welded Nozzles
314 Figure NCD-4244.1-6 Some Acceptable Types of Small Fitting
315 Figure NCD-4244.2-1 Tube Connections
316 Figure NCD-4244.2-2 Some Acceptable Types of Welded Nozzles, and Branch and Piping Connections
317 Table NCD-4245.2-1
318 Figure NCD-4245.2-1 Attachment Welds
321 Figure NCD-4246.1(a)-1 Typical Bottom and Bottom‐to‐Shell Joints
322 Figure NCD-4246.3-1 Typical Roof and Roof‐to‐Shell Joints
323 Figure NCD-4246.5-1 Roof Manholes
324 Figure NCD-4246.5-2 Flanged Roof Nozzles
Figure NCD-4246.5-3 Screwed or Socket Weld Roof Nozzles
325 NCD-4250 Welding End Transitions — Maximum Envelope
Figure NCD-4246.5-4 Welded Bottom Outlet Elbow
Table NCD-4247.6(d)-1 Minimum Size for Fillet Welds
326 Figure NCD-4250-1 Welding End Transitions Maximum Envelope
327 NCD-4260 For Class 2 Only — Special Requirements for Weld Joints in Vessels Designed to NCD-3200
328 Figure NCD-4265-1 Acceptable Full Penetration Details to Form a Corner Joint
329 Figure NCD-4265-2 Acceptable Full Penetration Weld Details for Category C Joints
Figure NCD-4266(a)-1 Nozzles Attached by Full Penetration Butt Welds
330 Figure NCD-4266(b)-1 Full Penetration Corner Welded Attachments
331 NCD-4300 Welding Qualifications
NCD-4310 General Requirements
332 Figure NCD-4266(c)-1 Pad and Screwed Fitting Types of Welded Nozzles and Other Connections to Shells, Drums, and Headers
333 NCD-4320 Welding Qualifications, Records, and Identifying Stamps
Figure NCD-4266(d)-1 Partial Penetration Weld Connections
334 Figure NCD-4267-1 Attachments
335 NCD-4330 General Requirements for Welding Procedure Qualification Tests
338 NCD-4350 Special Qualification Requirements for Tube‐to‐Tubesheet Welds
NCD-4360 For Class 2 Only — Qualification Requirements for Welding Specially Designed Welded Seals
340 NCD-4400 Rules Governing Making, Examining, and Repairing Welds
NCD-4410 Precautions to Be Taken Before Welding
NCD-4420 Rules for Making Welded Joints
341 NCD-4430 Welding of Attachments
342 Figure NCD-4427-1 Fillet and Socket Weld Details and Dimensions
344 Figure NCD-4433-1 Types of Attachment Welds
345 NCD-4450 Repair of Weld Metal Defects
Figure NCD-4437.2(b)-1 Some Acceptable Methods of Attaching Stiffening Rings to Shells of Cylindrical Vessels Subjected to External Pressure
346 NCD-4460 For Class 3 Only — Welded Test Plates
NCD-4470 For Class 3 Only — Welded Stayed Construction
NCD-4500 Brazing
NCD-4510 Rules for Brazing
NCD-4520 Brazing Qualification Requirements
347 Figure NCD-4470-1 For Class 3 Only — Welded Stayed Construction
348 NCD-4530 Fitting and Aligning of Parts to Be Brazed
NCD-4540 Examination of Brazed Joints
Figure NCD-4511-1 Brazed Connections for Appurtenances and Piping
349 NCD-4600 Heat Treatment
NCD-4610 Welding Preheat Requirements
NCD-4620 Postweld Heat Treatment
Table NCD-4524-1 Maximum Design Temperatures for Brazing Filler Metal, °F (°C)
350 Table NCD-4622.1-1 Mandatory Requirements for Postweld Heat Treatment of Welds
351 Table NCD-4622.4(c)-1 Alternative Holding Temperatures and Times
352 Table NCD-4622.7(b)-1 Exemptions to Mandatory PWHT
355 NCD-4630 Heat Treatment of Welds Other Than the Final Postweld Heat Treatment
NCD-4650 Heat Treatment After Bending or Forming for Pipe, Pumps, and Valves
NCD-4660 Heat Treatment of Electroslag Welds
NCD-4700 Mechanical Joints
NCD-4710 Bolting and Threading
NCD-4720 Bolting Flanged Joints
NCD-4730 Electrical and Mechanical Penetration Assemblies
356 NCD-4800 Expansion Joints
NCD-4810 Fabrication and Installation Rules for Bellows Expansion Joints
Figure NCD-4730-1 Penetration Assembly
Figure NCD-4810(c)-1 Permissible Attachment Welds for Bellows
357 Article NCD-5000 Examination
NCD-5100 General Requirements for Examination
NCD-5110 Procedure, Qualification, and Evaluation
Table NCD-5111.1-1 Thickness, IQI Designations, and Essential Holes, and Wire Diameters
358 NCD-5120 Time of Examination of Welds and Weld Metal Cladding
NCD-5130 For Class 2 Only — Examination of Weld Edge Preparation Surfaces
359 NCD-5140 For Class 2 Only — Examination of Openings Cut in Vessels Designed to NCD-3200
NCD-5200 Examination of Welds
NCD-5210 Category A Vessel Welded Joints and Longitudinal Welded Joints in Piping, Pumps, and Valves
360 NCD-5220 Category B Vessel Welded Joints and Circumferential Welded Joints in Piping, Pumps, and Valves
Table NCD-5211.2-1 For Class 3 Only — Thickness Above Which Full Radiographic Examination of Butt-Welded Joint Is Mandatory
361 NCD-5230 Category C Vessel Welded Joints and Similar Welded Joints in Other Components
NCD-5240 Category D Vessel Welded Joints and Similar Welded Joints in Other Components
362 NCD-5250 For Class 2 Only — Examination of Welds for Vessels Designed to NCD-3200
NCD-5260 Fillet, Partial Penetration, Socket, and Attachment Welds; and Welded Stayed Construction
NCD-5270 Special Welds
363 NCD-5280 Weld Joints in Storage Tanks
364 NCD-5300 Acceptance Standards
NCD-5320 Radiographic Acceptance Standards
365 NCD-5330 Ultrasonic Acceptance Standards
NCD-5340 Magnetic Particle Acceptance Standards
366 NCD-5350 Liquid Penetrant Acceptance Standards
NCD-5360 Visual Acceptance Standards for Brazed Joints
NCD-5380 Gas and Bubble Formation Testing
NCD-5400 For Class 3 Only — Spot Examination of Welded Joints
NCD-5410 General Requirements
NCD-5420 Minimum Extent of Spot Radiographic Examination
NCD-5430 Standards for Spot Radiographic Examination
NCD-5440 Evaluation and Retests
367 NCD-5500 Qualifications and Certification of Nondestructive Examination Personnel
NCD-5510 General Requirements
NCD-5520 Personnel Qualification, Certification, and Verification
368 NCD-5530 Records
NCD-5600 For Class 2 Only — Final Examination of Components
NCD-5610 Examination After Pressure Testing
NCD-5700 Examination Requirements for Expansion Joints
NCD-5720 Bellows Expansion Joints
370 Article NCD-6000 Testing
NCD-6100 General Requirements
NCD-6110 Pressure Testing of Components, Appurtenances, and Systems
371 NCD-6120 Preparation for Testing
372 NCD-6200 Hydrostatic Tests
NCD-6210 Hydrostatic Test Procedure
NCD-6220 Hydrostatic Test Pressure Requirements
NCD-6230 Bellows Expansion Joints
373 NCD-6240 Provision for Embedded or Inaccessible Welded Joints in Piping
NCD-6300 Pneumatic Tests
NCD-6310 Pneumatic Testing Procedures
NCD-6320 Pneumatic Test Pressure Requirements
NCD-6330 Bellows Expansion Joints
NCD-6400 Pressure Test Gages
NCD-6410 Requirements for Pressure Test Gages
374 NCD-6500 Atmospheric and 0 psig to 15 psig (0 kPa gage to 100 kPa gage) Storage Tanks
NCD-6510 Testing of Atmospheric Storage Tanks
NCD-6520 Testing of 0 psig to 15 psig (0 kPa gage to 100 kPa gage) Storage Tanks
375 NCD-6530 Test Gages
376 NCD-6600 Special Test Pressure Situations
NCD-6610 Components Designed for External Pressure
NCD-6620 Pressure Testing of Combination Units
NCD-6900 Proof Tests to Establish Design Pressure
NCD-6910 General Requirements
378 NCD-6920 Procedures
380 NCD-6930 Procedure for Components Having Chambers of Special Shape Subject to Collapse
381 Article NCD-7000 Overpressure Protection
NCD-7100 General Requirements
NCD-7110 Scope
NCD-7120 Integrated Overpressure Protection
NCD-7130 Verification of the Operation of Reclosing Pressure Relief Devices
NCD-7140 Installation
382 NCD-7150 Acceptable Pressure Relief Devices
NCD-7160 Unacceptable Pressure Relief Devices
NCD-7170 Permitted Use of Pressure Relief Devices
383 NCD-7200 Overpressure Protection Report
NCD-7210 Responsibility for Report
NCD-7220 Content of Report
384 NCD-7230 Certification of Report
NCD-7240 Review of Report After Installation
NCD-7250 Filing of Report
NCD-7300 Relieving Capacity Requirements
NCD-7310 Expected System Pressure Transient Conditions
385 NCD-7320 Unexpected System Excess Pressure Transient Conditions
NCD-7330 System Faulted Conditions
NCD-7400 Set Pressures of Pressure Relief Devices
NCD-7410 Set Pressure Limitations for Expected System Pressure Transient Conditions
NCD-7420 Set Pressure Limitation for Unexpected System Excess Pressure Transient Conditions
NCD-7500 Operating and Design Requirements for Pressure and Vacuum Relief Valves
NCD-7510 Safety, Safety Relief, and Relief Valves
387 NCD-7520 Pilot-Operated Pressure Relief Valves
388 NCD-7530 Power-Actuated Pressure Relief Valves
389 NCD-7540 Safety Valves With Auxiliary Actuating Devices
390 NCD-7550 Vacuum Relief Valves
NCD-7560 Alternative Test Media
NCD-7600 Nonreclosing Pressure Relief Devices
NCD-7610 Rupture Disk Devices
391 NCD-7620 Installation Requirements
392 NCD-7700 Certification
NCD-7710 Responsibility for Certification of Pressure and Vacuum Relief Valves
NCD-7720 Responsibility for Certification of Nonreclosing Pressure Relief Devices
NCD-7730 Capacity Conversions
NCD-7760 Capacity Determination of Rupture Disk Devices
394 NCD-7800 Marking, Stamping With Certification Mark, and Data Reports
NCD-7810 Pressure and Vacuum Relief Valves
395 NCD-7820 Rupture Disk Devices
NCD-7830 Pressure Relief Valve in Combination With Rupture Disk Devices
NCD-7840 Certificate of Authorization to Use Certification Mark
396 Article NCD-8000 Nameplates, Stamping With Certification Mark, and Reports
NCD-8100 General Requirements
397 ENDNOTES

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