ASME BPVC.SSC.IV.II.V.IX-2021 pdf free download.Summary of Significant Changes in the 2021 ASME Boiler and Pressure Vessel Code
I Rules for Construction of Power Boilers
II Materials
• Part A — Ferrous Material Specifications
• Part B — Nonferrous Material Specifications
• Part C — Specifications for Welding Rods, Electrodes, and Filler Metals
• Part D — Properties (Customary)
• Part D — Properties (Metric)
III Rules for Construction of Nuclear Facility Components
• Subsection NCA — General Requirements for Division 1 and Division 2
• Appendices
• Division 1
– Subsection NB — Class 1 Components
– Subsection NCD — Class 2 and Class 3 Components
– Subsection NE — Class MC Components
– Subsection NF — Supports
– Subsection NG — Core Support Structures
• Division 2 — Code for Concrete Containments
• Division 3 — ContainmentSystems for Transportation and Storage ofSpentNuclear Fuel and High-Level Radioactive Material
• Division 5 — High Temperature Reactors
IV Rules for Construction of Heating Boilers
V Nondestructive Examination
VI Recommended Rules for the Care and Operation of Heating Boilers
VII Recommended Guidelines for the Care of Power Boilers
VIII Rules for Construction of Pressure Vessels
• Division 1
• Division 2 — Alternative Rules
• Division 3 — Alternative Rules for Construction of High Pressure Vessels
IX Welding, Brazing, and Fusing Qualifications
X Fiber-Reinforced Plastic Pressure Vessels
XI Rules for Inservice Inspection of Nuclear Power Plant Components
• Division 1 — Rules for Inspection and Testing of Components of Light-Water-Cooled Plants
• Division 2 — Requirements for Reliability and Integrity Management(RIM) Programs for Nuclear Power Plants
XII Rules for Construction and Continued Service of Transport Tanks
XIII Rules for Overpressure Protection
Location: HG-300 Through HG-800; HB-1510; Part HLW, Articles 1, 6, and 9; and Mandatory Appendices 5, 8, 9, and 10 Subject: Use of “Stamp” in Reference to the Nameplate or the Certification Mark
Explanation: Multiple paragraphs have been revised to replace the words “stamp,” “stamped,” and “stamping” with, respectively, “mark,” “marked,” and “marking” in reference to the marking of the nameplate or the application of the Certification Mark.
Location: HG-301.1
Subject: Definition of E
Explanation: The definition of E has been revised to clarify the joint efficiency for welded pipe and tubing.
Location: HG-312
Subject: Design Temperature of Plain Furnaces
Explanation: The requirementfordesigntemperature ofplain furnaces has beenrevised in HG-312.1(b) forconsistency with Section I. The arbitrary design temperature for plain furnaces was removed in the 1997 Addenda ofSection I and replaced with adesigntemperaturenotlessthanthemeanexpectedwalltemperature.Inthe 2011 EditionofSectionI,the design temperature requirement was moved to PG-28.1.1. The revision to HG-312.1(b) makes the paragraph consistent not only with Section I but also with HLW-300(d), which covers cylindrical components under external pressure.
Location: Table HG-321Subject: Axis Ratio
Explanation:In the equivalent spherical radius equation in Table HG-321,”%” has been revised to””%a”The Table notesdefine the variable d, not the variable h.
Location: Part HG,Articles 4 and 4A; and HLW-800
Subject: Adoption of 2021 Edition of Section XIlI,Rules for Overpressure Protection
Explanation: Section TV has adopted the new ASME BPVC Section XIll, Rules for Overpressure Protection.This newSection consolidates and standardizes pressure relief device requirements for all ASME BPVC Sections.To ensure asmooth transition, modifications to Section lV have been issued concurrently with the issuance of Section XI1.These changes include the transfer of pressure relief device requirements from SectionlV to Section XIIl and the restruc-turing of the remaining overpressure protection requirements within the new Article 4A.
Location: HG-530.1 and HLW-602.3
Subject: Marking of Boilers and Water Heaters
Explanation: Paragraphs HG-530.1(b) and HLW-602.3 have been revised to incorporate dot peening and engraving asmethods for applying markingsto nameplates on boilers and water heaters.This revision results from interpretations18-437 and 18-438.Additionally, this revision adds to Part HLW the same precautions and prerequisites for applying thesemarkings as are found in Part HG.
Location: HG-531 and HLW-602.4
Subject: Incorporation of Code Cases 2962 and 2972
Explanation: Paragraphs have been added to HG-531 and HLW-602.4 to allow alternative marking of small parts.Theserevisions are based on Section I,PG-106.8.2.
Subject: Minimum Pressure and Temperature Requirements.ASME BPVC.SSC.IV.II.V.IX pdf download.ASME BPVC.SSC.IV.II.V.IX-2021 pdf free download
