2017 ASME Boiler & Pressure Vessel Code: An International Code

Description

Table of Contents List of Sections INTERPRETATIONS CODE CASES 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 1 Introduction 2 Inquiry Format 3 Code Revisions or Additions 4 Code Cases 5 Code Interpretations 6 Submittals Personnel Preamble Summary of Changes List of Changes in Record Number Order Cross-Referencing and Stylistic Changes in the Boiler and Pressure Vessel Code Subparagraph Breakdowns/Nested Lists Hierarchy Footnotes Submittal of Technical Inquiries to the Boiler and Pressure Vessel Standards Committees Cross-References Part HG General Requirements for All Materials of Construction Article 1 Scope and Service Restrictions HG-100 Scope HG-101 Service Restrictions HG-101.1 Service Restrictions HG-101.2 Services in Excess of Those Covered by This Section HG-102 Units HG-103 Tolerances Article 2 Material Requirements HG-200 General Material Requirements HG-200.1 Materials Subject to Pressure Stress HG-200.2 Internal Parts Subject to Deterioration HG-200.3 Materials Not Found in Section II HG-200.4 Materials Use Not Limited by Specification Title HG-200.5 Materials Use Not Limited by Method of Production HG-200.6 Materials With Thicknesses Exceeding Specification Limits HG-200.7 Nonpressure Part Materials HG-201 Specific Material Requirements Article 3 Design HG-300 Design Pressure HG-300.1 Vacuum Boilers HG-301 Cylindrical Parts Under Internal Pressure HG-301.1 General HG-301.2 Tubes HG-305 Formed Heads, Pressure on Concave Side HG-305.1 General HG-305.2 Ellipsoidal Heads HG-305.3 Torispherical Heads HG-305.4 Hemispherical Heads HG-305.5 Formed Heads With Stays HG-305.6 Inside Crown Radius of Unstayed Heads HG-305.7 Heads Built up of Several Shapes HG-305.8 Length of Skirts HG-305.9 Permissible Diameter of Flat Spots on Formed Heads HG-306 Formed Heads, Pressure on Convex Side HG-306.1 HG-307 Flat Heads HG-307.1 General HG-307.2 Thickness of Circular, Flat, Unstayed Heads, Covers, and Blind Flanges HG-307.3 Thickness of Noncircular, Flat, Unstayed Heads, Covers, and Blind Flanges HG-307.4 Values of C for Use in Equations in HG-307.2 and HG-307.3 HG-307.5 Electric Immersion Heating Element Support Plates HG-309 Spherically Dished Covers (Bolted Heads) HG-309.1 Heads Concave to Pressure HG-312 Cylindrical Parts Under External Pressure HG-312.1 Plain Type Furnaces HG-312.2 Tubes HG-312.3 Procedure for Determining Wall Thickness of Plain Furnaces and Tubes HG-312.4 Ring Reinforced Type Furnace HG-312.5 Procedure for Determining Moment of Inertia of Stiffening Rings HG-312.6 Corrugated Furnaces HG-312.7 Combination Type Furnaces HG-312.8 Semicircular Furnaces or Crown Sheets Subjected to External Pressure HG-320 Openings in Boilers, General Requirements HG-320.1 Shape of Openings HG-320.2 Size of Openings HG-320.3 Strength and Design of Finished Openings HG-321 Reinforcement Required for Openings in Shells and Formed Heads HG-321.1 General HG-321.2 Design for Internal Pressure HG-323 Flanged‐In Openings in Formed Heads HG-323.1 Reinforcement Requirements HG-323.2 Restrictions on Location HG-323.3 Minimum Thickness Requirements of Flanged‐In Openings HG-323.4 Minimum Flange Depth HG-323.5 Minimum Gasket Bearing Surface HG-325 Reinforcement Required for Openings in Flat Heads HG-325.1 General HG-325.2 Specific Requirements HG-326 Limits of Metal Available for Reinforcement HG-326.1 Designation of Limits of Reinforcement HG-326.2 Limits of Reinforcement Parallel to Boiler Shell HG-326.3 Limits of Reinforcement Normal to Boiler Shell HG-326.4 Use of Excess Boiler Shell and Other Thicknesses HG-327 Strength of Reinforcement HG-327.1 Strength of Nozzle and Added Material HG-327.2 Strength of Attachment Material HG-328 Reinforcement for Multiple Openings HG-328.1 When Limits of Reinforcement Overlap HG-328.2 Combined Reinforcement for Multiple Openings HG-328.3 When Reinforcing Each of a Series of Openings Is Impractical HG-330 Inspection and Access Openings HG-330.1 General Inspection Openings HG-330.2 Manholes HG-330.3 Size of Manholes and Gasket Surfaces HG-330.4 Handholes and Washout Plugs HG-330.5 Access Doors HG-330.6 Modular Boilers HG-340 Stayed Surfaces HG-340.1 Required Thickness and Design Pressure HG-340.2 Proportions of Through‐Stays With Washers HG-340.3 Maximum Pitch of Stays HG-340.4 Unsymmetrical Staying HG-340.5 Stay Distance to Corner Joints, Welded Joints, and Flanges HG-340.6 Allowable Pitch of Stays HG-341 Staybolts HG-341.1 Threaded Staybolts HG-341.2 Staybolts Upset for Threading HG-341.3 Staybolts Fitted With Nuts HG-341.4 Welded‐In Staybolts HG-342 Dimensions of Stays HG-342.1 Required Area of Stays HG-342.2 Load Carried by Stays HG-342.3 Stays Longer Than 120 Diameters HG-342.4 Stays Fabricated by Welding HG-342.5 Minimum Cross‐Sectional Area HG-342.6 Minimum Diameter of Nonferrous Stays HG-343 Dimensions of Diagonal Stays HG-343.1 Required Area of Diagonal Stays HG-343.2 Diagonal Stays for Segments of Tubesheets HG-345 Staying of Heads HG-345.1 General HG-346 Tubesheets with Firetubes Used as Stays HG-346.1 Required Thickness, Maximum Pitch, and Design Pressure HG-346.2 Maximum Pitch of Firetubes Used as Stays HG-346.3 Calculating Firetubes Used as Stays HG-346.4 Dimensions and Welding of Firetubes Used as Stays HG-350 Ligaments HG-350.1 General HG-350.2 Openings Parallel to Shell Axis HG-350.3 Openings Transverse to Shell Axis HG-350.4 Holes Along a Diagonal HG-360 Requirements for Tube Holes and Tube Attachments HG-360.1 Tube Holes and Ends HG-360.2 Attachment of Firetubes HG-360.3 Attachment of Watertubes HG-370 External Piping Connections HG-370.1 Threaded Connections HG-370.2 Flanged Connections HG-370.3 Welded or Brazed Connections Article 4 Pressure-Relieving Devices HG-400 Pressure-Relieving Valve Requirements HG-400.1 Safety Valve Requirements for Steam Boilers HG-400.2 Safety Relief Valve Requirements for Hot Water Boilers HG-400.3 Safety and Safety Relief Valves for Tanks and Heat Exchangers HG-401 Minimum Requirements for Safety and Safety Relief Valves HG-401.1 Mechanical Requirements HG-401.2 Material Selection HG-401.3 Manufacture and Inspection HG-401.4 Manufacturer’s Testing HG-401.5 Design Requirements HG-402 Discharge Capacities of Safety and Safety Relief Valves HG-402.1 Valve Markings HG-402.2 Authorization to Use ASME Certification Mark HG-402.3 Determination of Capacity to Be Stamped on Valves HG-402.4 Pressures at Which Capacity Tests Shall Be Conducted HG-402.5 Set Pressure Tests of Safety Relief Valves HG-402.6 Capacity Tests of Temperature and Pressure Safety Relief Valves HG-402.7 Fluid Medium for Capacity Tests HG-402.8 Where and by Whom Capacity Tests Shall Be Conducted HG-402.9 Test Record Data Sheet HG-403 Heating Surface HG-405 Temperature and Pressure Safety Relief Valves Article 5 Tests, Inspection, and Stamping HG-500 Proof Tests to Establish Design Pressure HG-501 General HG-502 Procedure HG-503 Tests of Parts Subject to Collapse HG-504 Tests of Duplicate Parts HG-505 Test Gages HG-506 Inspection of Proof Tests HG-510 Hydrostatic Tests HG-511 Pneumatic Tests HG-512 Safety and Safety Relief Valve Accumulation Tests HG-515 Inspection Tests and Certification of Boilers HG-520 Master and Partial Data Reports HG-530 Marking of Boilers HG-531 Stamping of Parts and Accessories HG-532 Stamping of Field Assembled Wrought Boilers HG-533 Inspection and Stamping of Field Assembled Boiler Pressure Parts HG-534 Field‐Assembled Cast Iron Boilers HG-540 Certification Marks Article 6 Instruments, Fittings, and Controls HG-600 General HG-601 For Steam Heating Boilers HG-602 Steam Gages HG-603 Water Gage Glasses HG-604 Water Column and Water Level Control Pipes HG-605 Pressure Control HG-606 Automatic Low‐Water Fuel Cutoff and/or Water Feeding Device HG-607 Modular Steam Heating Boilers HG-610 For Hot Water Heating or Hot Water Supply Boilers HG-611 Pressure or Altitude Gages HG-612 Thermometers/Temperature Sensors HG-613 Temperature Control HG-614 Low‐Water Fuel Cutoff HG-615 Modular Hot Water Heating Boilers HG-620 For All Boilers HG-621 Instruments, Fittings, and Controls Mounted Inside Boiler Jackets HG-630 Electric Wiring HG-631 Electrical Code Compliance HG-632 Type Circuitry to be Used HG-633 Limit Controls HG-634 Shutdown Switches and Circuit Breakers HG-640 Controls and Heat Generating Apparatus Article 7 Installation Requirements HG-700 Installation Requirements, All Boilers HG-701 Mounting Safety and Safety Relief Valves HG-703 Piping HG-705 Feedwater and Makeup Water Connections HG-707 Oil Heaters HG-708 Storage Tanks for Hot Water Supply Systems HG-709 Provisions for Thermal Expansion in Hot Water Systems HG-710 Stop Valves HG-715 Bottom Blowoff and Drain Valves HG-716 Modular Boilers HG-720 Setting HG-725 Methods of Support Part HF Requirements for Boilers Constructed of Wrought Materials Article 1 General HF-100 Scope Article 2 Material Requirements HF-200 General Material Requirements HF-201 Plate HF-202 Rods, Bars, and Shapes HF-203 Prefabricated or Preformed Pressure Parts HF-203.1 Cast, Forged, Rolled, or Die-Formed Standard Pressure Parts HF-203.2 Cast, Forged, Rolled, or Die-Formed Nonstandard Pressure Parts HF-203.3 Welded Standard Pressure Parts for Use Other Than the Shell of a Boiler HF-204 Pipe and Tubes HF-204.1 Integrally Finned Tubes HF-204.2 Electric Resistance Welded Fin Tubes HF-204.3 Stainless Tubes HF-204.4 Laser-Welded Fin Tubes HF-205 Material Not Fully Identified HF-205.1 Acceptance by Authentic Test Record and Marking HF-205.2 Acceptance by Testing HF-205.3 Marking and Report on Tests of Nonidentified Material HF-206 Recertification of Material Produced to a Specification Not Permitted by This Section HF-207 Austenitic Stainless Steel HF-210 Maintaining Material Identification Article 3 Design Stresses and Minimum Thicknesses HF-300 Maximum Allowable Stress Values HF-301 Minimum Thicknesses HF-301.1 Ferrous Plates HF-301.2 Nonferrous Plates HF-302 Basis for Establishing Stress Values in Table HF-300.1 (HF-300.1M) or Table HF-300.2 (HF-300.2M) Part HF — Subpart HW Requirements for Boilers Fabricated by Welding Article 4 General Requirements HW-400 Scope HW-401 Responsibility of Manufacturer or Contractor Article 5 Material Requirements HW-500 Permissible Materials HW-501 Materials of Different Specifications HW-502 Materials for Small Parts Article 6 Welding Processes and Qualifications HW-600 Welding Processes HW-610 Welding Qualifications HW-611 No Production Work Without Qualifications HW-612 Interchange of Qualifying Tests Among Manufacturers Prohibited HW-613 Maintenance of Records of Qualifications and Identifying Marks Article 7 Design of Weldments HW-700 Design of Welded Joints HW-701 General Requirements HW-702 Joint Efficiencies HW-703 Minimum Thickness of Welded Parts HW-710 Welded Stays HW-711 Heads or Tubesheets Attached by Welding HW-712 Furnace Attachments HW-713 Tubes Attached by Welding HW-715 Head‐to‐Shell Attachments HW-720 Openings in Welds HW-730 Welded Connections HW-731 Minimum Requirements for Attachment Welds HW-740 Resistance Welding in Carbon Steel for Other Than Butt-Welded Joints HW-745 Resistance Welding of Hydraulically Formed Panels Article 8 Fabrication Requirements HW-800 Forming Plates HW-801 Base Metal Preparation HW-810 Assembly HW-812 Alignment Tolerance HW-813 Distortion HW-820 Specific Welding Requirements HW-820.1 Finished Longitudinal and Circumferential Joints HW-820.2 Fillet Welds HW-820.3 Double‐Welded Butt Joints HW-820.4 Stud Welding HW-820.5 Procedure and Performance Qualification Tests and Material Requirements for Stud Welding HW-820.6 Stud Welding HW-820.7 HW-820.8 Welding (Brazing) by Non‐Certificate Holders HW-820.9 Flash Welding HW-830 Repair of Weld Defects HW-840 Posthydrotest Welding of Nonpressure Parts to Pressure Parts Article 9 Inspection HW-900 Inspection During Fabrication HW-910 Check of Welding Procedure Qualifications HW-911 Check of Welder and Welding Operator Performance Qualifications Part HF — Subpart HB Requirements for Boilers Fabricated by Brazing Article 10 General Requirements HB-1000 Scope HB-1001 Responsibility of Manufacturer or Contractor Article 11 Material Requirements HB-1100 General HB-1101 Combinations of Dissimilar Materials HB-1102 Brazing Filler Metals HB-1103 Fluxes and Atmospheres Article 12 Brazing Processes, Procedures, and Qualifications HB-1200 Brazing Processes HB-1201 Joint Brazing Procedures HB-1202 Brazing Qualifications and Records HB-1202.1 Qualification of Brazing Procedures HB-1202.2 Qualification of Brazers and Brazing Operators HB-1202.3 No Production Work Without Qualifications HB-1202.4 Maintenance of Records of Qualifications and Identifying Marks Article 13 Design HB-1300 Strength of Brazed Joints HB-1301 Brazed Joint Efficiency Factors HB-1302 Minimum Thickness HB-1303 Permissible Service Temperature HB-1304 Application of Brazing Filler Metal HB-1305 Joint Clearance HB-1306 Openings HB-1307 Brazed Connections Article 14 Fabrication Requirements HB-1400 Cleaning of Surfaces to Be Brazed HB-1401 Postbrazing Operations HB-1402 Repair of Defective Brazing Article 15 Inspection and Stamping HB-1500 Inspection HB-1501 Inspection of Brazing Procedure HB-1502 Certification of Brazer and Brazing Operator HB-1503 Visual Examination HB-1510 Stamping Part HC Requirements for Boilers Constructed of Cast Iron Article 1 General HC-100 Scope Article 2 Material Requirements HC-200 General Material Requirements HC-201 Manufacture HC-202 Chemical Composition HC-203 Tensile Strength Classification HC-204 Test Bars HC-205 Selection of Test Bar Size HC-206 Molding and Pouring Test Bars HC-207 Number of Tests HC-208 Tension Test HC-209 Tension Test Procedure HC-210 Tension Retests HC-211 Transverse Test HC-212 Transverse Test Procedure HC-213 Transverse Retests HC-214 Workmanship, Finish, and Repair HC-215 Examinations and Tests HC-216 Test Records Article 3 Design HC-300 Maximum Allowable Stress Values HC-301 Basis for Establishing Stress Values in Table HC-300 HC-310 Heads HC-310.1 Heads With Pressure on Concave Side HC-310.2 Heads With Pressure on Convex Side HC-311 Spherically Shaped Covers HC-311.1 Heads Concave to Pressure HC-315 Openings and Reinforcements HC-320 Corners and Fillets HC-325 Washout Openings HC-330 Assembly Method Article 4 Tests HC-400 Tests to Establish Design Pressure HC-401 General HC-402 Bursting Test Procedure HC-403 Witnessing, Recording, and Certifying Tests HC-404 Rating of Production Boilers Based on Tests HC-410 Hydrostatic Test Article 5 Quality Control and Inspection HC-501 General HC-501.1 Quality Control System HC-502 Outline of Features to Be Included in the Written Description of the Quality Control System HC-502.1 Product or Work Description HC-502.2 Authority and Responsibility HC-502.3 Organization HC-502.4 Drawings, Design Calculations, Test Results, and Specification Control HC-502.5 Material Control HC-502.6 Examination Program HC-502.7 Correction of Nonconformities HC-502.8 Calibration of Measurement and Test Equipment HC-502.9 Sample Forms HC-502.10 Retention of Records and Certifications HC-502.11 ASME Designee HC-502.12 Certified Individual (CI) HC-510 Examination HC-520 Certificates of Conformance Part HA Requirements for Boilers Constructed of Cast Aluminum Article 1 General HA-100 Scope Article 2 Material Requirements HA-200 General Material Requirements HA-201 Workmanship, Finish, and Repair HA-202 Examinations and Tests HA-203 Test Records Article 3 Design HA-300 Maximum Allowable Stress Values HA-301 Heads and Spherically Shaped Covers HA-302 Openings and Reinforcements HA-303 Corners and Fillets HA-304 Washout Openings HA-305 Assembly Method Article 4 Tests HA-400 Tests to Establish Design Pressure HA-401 General HA-402 Bursting Test Procedure HA-403 Test Gages HA-404 Witnessing, Recording, and Certifying Tests HA-405 Rating of Production Boilers Based on Tests HA-406 Hydrostatic Test HA-407 Pneumatic Tests Article 5 Quality Control and Inspection HA-501 General HA-501.1 Quality Control System HA-502 Outline of Features to Be Included in the Written Description of the Quality Control System HA-502.1 Product or Work Description HA-502.2 Authority and Responsibility HA-502.3 Organization HA-502.4 Drawings, Design Calculations, Test Results, and Specification Control HA-502.5 Material Control HA-502.6 Examination Program HA-502.7 Correction of Nonconformities HA-502.8 Calibration of Measurement and Test Equipment HA-502.9 Sample Forms HA-502.10 Retention of Records and Certifications HA-502.11 ASME Designee HA-502.12 Certified Individual (CI) HA-503 Examination HA-504 Certificates of Conformance Part HLW Requirements for Potable‐Water Heaters Introduction Article 1 — General Article 2 — Materials Article 3 — Design Article 4 — Weldments Article 5 — Tests Article 6 — Inspection and Stamping Article 7 — Controls Article 8 — Installation Article 1 General HLW-100 Scope HLW-101 Service Limits HLW-102 Permissible Stamping HLW-103 Units Article 2 Material Requirements HLW-200 Lining HLW-201 Primary Pressure Parts Material HLW-202 Acceptance of Unidentified or Small Quantities of Material HLW-202.1 Plate HLW-202.2 Tubes, Pipe, Rods, Bars, and Shapes HLW-202.3 Marking and Test Report HLW-203 Miscellaneous Pressure Parts Material HLW-204 Flanges and Pipe Fittings HLW-205 Nonpressure Part Material Article 3 Design HLW-300 Design HLW-301 Basis for Establishing Stress Values in Tables HLW-300 and HLW-301 HLW-302 Minimum Thicknesses HLW-303 Shells Under Internal Pressure HLW-305 Blank Unstayed Dished Heads, Pressure on Concave Side HLW-305.1 General HLW-305.2 Ellipsoidal Heads HLW-305.3 Torispherical Heads HLW-305.4 Inside Crown Radius of Unstayed Heads HLW-305.5 Hemispherical Heads HLW-306 Blank Unstayed Dished Heads, Pressure on Convex Side HLW-306.1 HLW-306.2 Hemispherical Heads HLW-307 Tubes HLW-308 Openings HLW-308.1 HLW-308.2 HLW-309 Tubes Attached by Rolling HLW-310 Storage Tanks HLW-310.1 Tank Construction HLW-310.2 Inspection Openings Article 4 Design of Weldments HLW-400 Design of Welded Joints HLW-401 General Requirements HLW-402 Joint Efficiencies HLW-411 Heads or Tubesheets Attached by Welding HLW-413 Tubes Attached by Welding HLW-415 Head‐to‐Shell Attachments HLW-420 Openings in Welds HLW-430 Welded Connections HLW-431 Minimum Requirements for Attachment Welds HLW-432 Brazed Connections for Copper Lined Vessels HLW-440 Welding Processes HLW-450 Welding Qualifications HLW-451 Production Work Qualifications HLW-452 Interchange of Qualifying Tests Among Manufacturers Prohibited HLW-453 Maintenance of Records of Qualifications and Identifying Marks HLW-454 Posthydrotest Welding of Nonpressure Parts to Pressure Parts HLW-460 Specific Welding Requirements Article 5 Tests HLW-500 Tests to Establish Maximum Allowable Working Pressure and Production Line Tests HLW-501 General HLW-502 Proof Test HLW-503 Testing of Parts HLW-504 Witnessing, Recording, and Certifying Tests HLW-505 Hydrostatic Test Article 6 Inspection and Stamping HLW-600 Inspection and Certification HLW-600.1 Inspection by Authorized Inspector HLW-600.2 Manufacturer’s Responsibility HLW-600.3 Authorized Inspector’s Duty HLW-601 Manufacturer’s Data and Partial Data Reports HLW-601.1 Manufacturer’s Data Report HLW-601.2 Partial Data Reports HLW-601.3 Supplementary Sheet HLW-601.4 Multiple Page Data Reports HLW-602 Stamping of Water Heaters and Storage Tanks HLW-602.1 Stamping Requirements for Vessels HLW-602.2 Stamping a Proof Tested Vessel HLW-602.3 HLW-602.4 HLW-602.5 Article 7 Controls HLW-700 Controls HLW-701 Temperature Control HLW-702 Limit Controls HLW-703 Controls and Heat Generating Apparatus HLW-704 Electrical Wiring Article 8 Installation Requirements HLW-800 Safety Relief Valves HLW-800.1 Safety Relief Valve Requirements for Water Heaters HLW-801 Mounting Safety Relief Valves HLW-801.1 Installation HLW-801.2 Permissible Mountings HLW-801.3 Requirements for Common Connection for Two or More Valves HLW-801.4 Threaded Connections HLW-801.5 Prohibited Mountings HLW-801.6 Use of Shutoff Valves Prohibited HLW-801.7 Safety Relief Valve Discharge Piping HLW-805 Water Supply HLW-805.1 Connections HLW-805.2 Pressure HLW-805.3 Stop Valves HLW-809 Provisions for Thermal Expansion in Hot Water Systems HLW-809.1 Expansion Tank HLW-809.2 Piping HLW-810 Bottom Drain Valve HLW-820 Thermometer Mandatory Appendices Mandatory Appendix 2 Codes, Standards, and Specifications Referenced in Text 2-100 Reference Standards 2-200 Organizations Mandatory Appendix 3 Adhesive Attachment of Nameplates to Casing 3-100 Scope 3-101 Nameplate Application Procedure Qualification Mandatory Appendix 4 Guide to Manufacturer’s Data Report Forms 4-100 Introduction 4-200 Data Report Forms 4-300 Certificates of Conformance Mandatory Appendix 5 Vacuum Boilers 5-100 Scope 5-200 Maximum Pressure and Temperature 5-300 Design Parameters 5-400 Welding 5-500 Alternative to Hydrotest 5-600 Instruments, Fittings, and Controls 5-700 Inspection Openings Mandatory Appendix 6 Standard Units for Use in Equations Mandatory Appendix 7 Rules for Mass-Production of Heating Boilers 7-100 Introduction 7-200 Scope 7-300 General 7-400 Quality Control Procedures 7-500 Data Reports Mandatory Appendix 8 Criteria for Reapplication of a Certification Mark 8-100 Introduction 8-200 Conditions 8-300 Rules Mandatory Appendix 9 Establishing Governing Code Editions, Addenda, and Cases for Heating Boilers and Replacement Parts 9-100 General 9-200 Design 9-300 Materials 9-400 Fabrication 9-500 Examination 9-600 Inspection 9-700 Testing 9-800 Overpressure Protection 9-900 Field Assembly 9-1000 Certification Mandatory Appendix 10 Requirements for Feedwater Economizers 10-100 General 10-200 Design 10-300 Pressure Relief Nonmandatory Appendices Nonmandatory Appendix A Estimating Pressure Relief Valve Capacity Requirements A-100 Nonmandatory Appendix B Method of Checking Safety Valve and Safety Relief Valve Capacity by Measuring Maximum Amount of Fuel That Can Be Burned B-100 Procedure B-101 Examples B-102 Heats of Combustion of Fuels Nonmandatory Appendix C Examples of Method of Calculating a Welded Ring Reinforced Furnace C-100 For a Steam or Hot Water Boiler C-101 For a Hot Water Boiler Nonmandatory Appendix D Examples of Methods of Computation of Openings in Boiler Shells D-100 Pad Reinforced Opening D-101 Nozzle Reinforced Opening Nonmandatory Appendix E Terminology E-100 Terms Relating to Design E-101 Terms Relating to Welding Nonmandatory Appendix F Quality Control System F-100 General F-100.1 Quality Control System F-202 Outline of Features to Be Included in the Written Description of the Quality Control System F-202.1 Authority and Responsibility F-202.2 Organization F-202.3 Drawings, Design Calculations, and Specification Control F-202.4 Material Control F-202.5 Examination and Inspection Program F-202.6 Correction of Nonconformities F-202.7 Welding or Brazing F-202.8 Calibration of Measurement and Test Equipment F-202.9 Sample Forms F-202.10 Authorized Inspector F-202.11 Inspection During Manufacture of Safety and Safety Relief Valves F-202.12 Certifications Nonmandatory Appendix H List of Abbreviations and Addresses Nonmandatory Appendix K Guide to Information Appearing on Certificate of Authorization Nonmandatory Appendix M Guidance for the Use of U.S. Customary and SI Units in the ASME Boiler and Pressure Vessel Code M-100 Use of Units in Equations M-200 Guidelines Used to Develop SI Equivalents M-300 Soft Conversion Factors Nonmandatory Appendix N Guide to Manufacturer’s Certificate of Conformance for Pressure Relief Valves Introduction Figures HG-307 Some Acceptable Types of Unstayed Flat Heads and Covers HG-309 Spherically Dished Steel Plate Covers With Bolting Flanges HG-312.4 Acceptable Type of Ring-Reinforced Furnace HG-312.7 Connection Between Plain and Corrugated Furnace HG-312.8 Acceptable Type of Semicircular Furnace Reinforcement HG-321 Chart for Determining Values of F HG-326.1 Some Representative Configurations Describing the Reinforcement Dimension, te, and the Finished Opening Dimension, d HG-326.2 Nomenclature and Formulas for Reinforced Openings HG-340.1 Pitch of Staybolts Adjacent to Upper Corners of Fireboxes HG-340.2 Acceptable Proportions for Ends of Through‐Stays HG-340.3 Examples of Acceptable Corner Welds for Pressures Not Over 30 psi HG-343 Details of Installation of Diagonal Stays HG-345.1(a) Sketch Showing Application of HG-345.1 to the Staying of Boilers HG-345.1(b) Sketch Showing Application of HG-345.1 to the Staying of Boilers HG-350.1 Example of Tube Spacing With Pitch of Holes Equal in Every Row HG-350.2 Example of Tube Spacing With Pitch of Holes Unequal in Every Second Row HG-350.3 Example of Tube Spacing With Pitch of Holes Varying in Every Second and Third Row HG-350.4 Example of Tube Spacing With Tube Holes on Diagonal Lines HG-402 Official Certification Mark to Denote the American Society of Mechanical Engineers’ Standard HG-530.1 Official Certification Mark to Denote the American Society of Mechanical Engineers’ Standard HG-530.2 Steam and Water Boilers Form of Marking on Completed Boilers or Their Nameplates HG-530.3 Boilers Suitable for Water Only HG-530.4 Steam and Water Boilers HG-530.5 Boilers Suitable for Water Only HG-530.6 Boilers Suitable for Water Only HG-530.7 Steam and Water Boilers HG-530.8 Boilers Suitable for Water Only HG-703.1(a) Steam Boilers in Battery — Pumped Return — Acceptable Piping Installation HG-703.1(b) Steam Boilers in Battery — Gravity Return — Acceptable Piping Installation HG-703.2 Hot Water Boilers in Battery — Acceptable Piping Installation HG-725(a) Spacing and Weld Details for Supporting Lugs in Pairs on Horizontal‐Return Tubular Boiler HG-725(b) Welded Bracket Connection for Horizontal‐Return Tubular Boiler HW-701.1 Butt Welding of Plates of Unequal Thickness HW-701.3 Some Forms of Attachments of Pressure Parts to Flat Plates to Form a Corner Joint (Tee Joint) HW-710.4(a) Some Acceptable Types of Diagonal Stays for Installation by Welding HW-710.4(b) Unacceptable Types of Diagonal Stays for Installation by Welding HW-715.1 Heads Attached to Shells HW-731 Some Acceptable Types of Welds for Fittings, Nozzles, and Other Connections to Shells, Drums, and Headers HW-740 Three‐Ply Joint Assemblies HW-745 Two‐Ply Joint Assemblies HC-204.1 Dimensions of Tensile Test Specimen HC-205.1 Cast Test Bars HC-311 Spherically Shaped Covers With Bolting Flanges HLW-401.1 Butt Welding of Plates of Unequal Thickness HLW-401.2 Typical Corner Joints HLW-411 Typical Water Heater Welded Joints HLW-413 Tubes Attached by Welding HLW-415 Heads Attached to Shells HLW-431.1 Some Acceptable Types of Welds for Fittings, Nozzles, and Other Connections to Shells and Head HLW-431.5 Some Acceptable Types of Welds for Fittings, Nozzles, and Other Connections to Shells and Head HLW-432.1 Some Acceptable Types of Brazed Fittings, Nozzles, and Other Connections to Copper‐Lined Shells and Heads HLW-602.1 Official Symbol to Denote The American Society of Mechanical Engineers’ Standard HLW-602.2 Form of Stamping on Completed Water Heaters HLW-809.1 A Typical Acceptable Piping Installation for Storage Water Heaters in Battery HLW-809.2 A Typical Acceptable Piping Installation for Flow Through Water Heater With Provisions for Piping Expansion D-100 Computation of Typical Pad Reinforcement D-101 Computation of a Typical Nozzle Fitting K-1 Sample Certificate of Authorization Tables HG-321 Values of Spherical Radius Factor K1 HG-340 Allowable Pitch of Stays, in. (mm) (Limited by HG-340.3) HG-360 Permitted O‐Ring Materials HG-370 Minimum Thickness of Material for Threaded Connections to Boilers HG-709.2 Expansion Tank Capacities for Forced Hot Water Systems HG-715 Size of Bottom Blowoff Piping, Valves, and Cocks HF-300.1 Maximum Allowable Stress Values for Ferrous Materials, ksi HF-300.1M Maximum Allowable Stress Values for Ferrous Materials, MPa HF-300.2 Maximum Allowable Stress Values for Nonferrous Materials, ksi HF-300.2M Maximum Allowable Stress Values for Nonferrous Materials, MPa HW-713 Firetube Extension Through Tubesheets for Welded Construction HB-1305 Recommended Joint Clearances at Brazing Temperature HC-212 Correction Factors for Transverse Test Bars HC-214 Pipe Plug Size for Minimum Wall Thickness HC-300 Maximum Allowable Stress Values in Tension for Cast Iron, ksi (MPa) HLW-300 Maximum Allowable Stress Values in Tension for Lined Water Heater Materials, ksi (MPa) HLW-301 Maximum Allowable Stress Values in Tension for Unlined Water Heater Materials, ksi (MPa) HLW-401.3-1 Alignment Tolerance HLW-809.1 Expansion Tank Capacities for a Water Heater 2-100 Codes, Standards, and Specifications Referenced in Text 4-1 Guide for the Preparation of Section IV Manufacturer’s Data Report Forms 6-1 Standard Units for Use in Equations 8-200-1 Guide for Completing the Certificate of Conformance for Reapplication of the Certification Mark A-100 Guide for Estimating Steaming Capacity Based on Heating Surface N-1 Guide for the Preparation of Section IV Manufacturer’s Certificate of Conformance Form HV-1 Forms H-2 Manufacturer’s Data Report for All Types of Boilers Except Watertube and Those Made of Cast Iron H-3 Manufacturer’s Data Report for Watertube Boilers H-4 Manufacturer’s Partial Data Report H-5 Manufacturer’s Master Data Report for Boilers Constructed from Cast Iron H-5A Manufacturer’s Master Data Report for Boilers Constructed from Cast Aluminum H-6 Manufacturer’s Data Report Supplementary Sheet HC-1 Manufacturer’s Material Certificate of Conformance for Cast Iron Boiler Sections HC-2 Manufacturer’s Material Certificate of Conformance for Hydrostatic Testing of Cast Iron Boiler Sections HC-3 Manufacturer’s Report for the Application of Nameplates on Cast Iron Boilers HA-1 Manufacturer’s Material Certificate of Conformance for Cast Aluminum Boiler Sections HA-2 Manufacturer’s Material Certificate of Conformance for Hydrostatic Testing of Cast Aluminum Boiler Sections HA-3 Manufacturer’s Report for the Application of Nameplates on Cast Aluminum Boilers HLW-6 Manufacturer’s Data Report for Water Heaters or Storage Tanks HLW-7 Manufacturer’s Partial Data Report for Water Heaters and Storage Tanks HLW-8 Manufacturer’s Master Data Proof Test Report for Water Heaters or Storage Tanks 8-1 Certificate of Conformance for Reapplication of the Certification Mark HV-1 Manufacturer’s Certificate of Conformance for Pressure Relief Valves Endnotes