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Online Companion Guide to the ASME Boiler and Pressure Vessel Codes: Criteria and Commentary on Select Aspects of the Boiler & Pressure Vessel Codes

ASME Press
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Section I of the ASME Boiler and Pressure Vessel Code provides rules for the construction of power boilers. This chapter provides an overview of the requirements of Section I and explains how they are applied and enforced. The discussion begins with an outline of the history, philosophy, and scope of Section I, how the ASME Code works, and how it is organized. The chapter then addresses the distinction between boiler proper piping and boiler external piping, and describes how and where Section I is enforced. This is followed by a discussion on the fundamentals of Section I construction. The fundamentals include permitted materials, design, fabrication, welding and postweld heat treatment, nondestructive examination, hydrostatic testing, third-party inspection, and certification by stamping and the use of data reports. The chapter ends by highlighting some of the items which may be included in a future publication of Section I. A few of these include changes to the requirements of pressure testing of replacement parts; changes to the requirements for marking of plate material used for shells, furnace sheets, and heads; and inclusion of corrosion allowance application criteria.


Martin D. Bernstein was the originator of this chapter for the first edition. Lloyd W. Yoder updated the chapter for the second edition. John R. MacKay updated the chapter for both the third and fourth editions. Ed Ortman and Jay Vattappilly updated this chapter for the fifth edition. Ed Ortman updated this chapter for the current online edition.

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