This strength Piping Code is one of the Sections of the yankee Society of Mechanical Engineers Code for strain Piping, B31. This part is released as a separate record for comfort. criteria and requirements in particular integrated through reference into this Code are proven in desk 126.1. it isn't thought of sensible to consult a dated variation of every of the factors and standards during this Code. in its place, the dated version references are integrated in an Addenda and may be revised every year. This Code prescribes necessities for the layout, fabrics, fabrication, erection, try out, inspection, operation, and upkeep of piping structures. Piping as utilized in this Code contains pipe, flanges, bolting, gaskets, valves, pressure-relieving valves/ units, fittings, and the pressure-containing parts of alternative piping parts, even if synthetic in keeping with criteria indexed in desk 126.1 or specifically designed. additionally it is hangers and helps and different gear goods essential to hinder overstressing the pressure-containing parts. ideas governing piping for miscellaneous appurtenances, comparable to water columns, distant water point symptoms, strain gages, gage glasses, etc., are incorporated in the scope of this Code, however the standards for boiler appurtenances will likely be according to part I of the ASME Boiler and strain Vessel Code, PG-60. The clients of this Code are instructed that during a few parts laws may possibly determine governmental jurisdiction over the subject material lined through this Code. notwithstanding, one of these criminal requirement shall now not relieve the landlord of his inspection obligations laid out in para. 136.1.
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Extra resources for ASME B31.1 Power Piping
N06690 Nickel alloys UNS Nos. 7 ... 4 ... 4 ... 4 ... 4 ... 4 ... 4 ... 4 ... 8°C) incremental values shown in the Table. (b) For pipe with a Do /tm ratio less than 6, the value of y for ferritic and austenitic steels designed for temperatures of 900°F (480°C) and below shall be taken as yp d d + Do NOTE: (1) Metals listed in Mandatory Appendix A that are not covered by the categories of materials listed above. 1) For nominal sizes smaller than NPS 3⁄4 (DN 20), the thickness shall not be less than that specified for Type K of ASTM B88.
Where applicable, weld joint efficiency factors and casting quality factors are included in the tabulated values. Thus, the tabulated values are values of S, SE, or SF, as applicable. (B) Allowable stress values in shear shall not exceed 80% of the values determined in accordance with the rules of para. 1(A). Allowable stress values in bearing shall not exceed 160% of the determined values. (C) The basis for establishing the allowable stress values in this Code Section are the same as those in the ASME Boiler and Pressure Vessel Code, Section II, Part D, Mandatory Appendix 1; except that allowable stresses for cast iron and ductile iron are in accordance with Section VIII, Division 1, Nonmandatory Appendix P for Tables UCI-23 and UCD-23, respectively.