Ignorance of the law shall not excuse noncompliance and it is the responsibility of the citizens to inform themselves as to the laws that are enacted in the United States of America and in the states and cities contained therein.

Name of Legally Binding Document: ASME BPVC IV (2007): Boiler and Pressure Vessel Code, Part IV, Rules for Construction of Heating Boilers Name of Standards Organization: American Society of Mechanical Engineers.

Figures and tables outline designs, materials, or performance requirements, indicate conditions for which precautions are necessary, and list Code paragraphs to be read for the proper information.

Experience has proven that many of these items are often overlooked.

Also included is a handy reference chart (Fig.

Code paragraphs that apply to each.

Table 2.1 lists the various classes of materials from Section VIII, Division 1, the covering Code section part, applicable references for the stress value tables found in Section II, Part D, and additional helpful hints.

It should be remembered, however, that there is no substitute for reading the Code itself.

Table 2.1: Classes of Materials Material Covering Code part Applicable Code stress value tables Remarks Carbon and low-alloy steels UCS Code Section II, Part D, Table 1A Basis for establishing stress values Code Appendix P, UG-23 Low-temperature service requires use of notch-tough materials Code Pars.

UCS-66, UCS-66.1, UCS-66.2 In high-temperature operation, creep strength is essential Design temperature Code Par.

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Asme Boiler And Pressure Vessel Code