Summary of Significant Changes in the 2021 ASME Boiler and Pressure Vessel Code: Sections IV, II, V, and IX is an ASME companion document to the 2021 ASME Boiler and Pressure Vessel Code. It explains significant Code requirement changes approved since 2019 for Section IV, Section II Parts A, B, C, and D, Section V, and Section IX.
The publication provides section introductions covering background, scope, and industry application, followed by change summaries that identify affected locations, subjects, and explanations of the reason and value of each revision. Topics include heating boiler requirements, materials specifications and properties, nondestructive examination, and welding, brazing, and fusing qualifications.
Application Scope: Intended for engineers, inspectors, manufacturers, quality personnel, welding and NDE professionals, and Code users who need a concise overview of major changes in the 2021 ASME BPVC Sections IV, II, V, and IX.
