ASME SECTION II A INTRO-2008 pdf download

ASME SECTION II A INTRO-2008 pdf download.Ferrous Material Specifications (Beginning to SA-450) MATERIALS.
(b) Statement of Need. Provide a brief explanation of the need for the revision or addition. (c) BackgroundInformation. Provide backgroundinfor- mation to support the revision or addition, including any data or changes in technology that form the basis for the request that will allow the Committee to adequately evalu- ate the proposed revision or addition. Sketches, tables, figures, and graphs should be submitted as appropriate. When applicable, identify any pertinent paragraph in the Code that would be affected by the revision or addition and identify paragraphs in the Code that reference the paragraphs that are to be revised or added. 4 CODE CASES Requests for Code Cases shall provide a Statement of Need and Background Information similar to that defined in 3(b) and 3(c), respectively, for Code revisions or addi- tions. TheurgencyoftheCode Case(e.g., projectunderway or imminent, new procedure, etc.) must be defined and it must be confirmed that the request is in connection with equipment that will be ASME stamped, with the exception ofSectionXI applications. TheproposedCodeCase should identify the Code Section and Division, and be written as a Question and a Reply in the same format as existing Code Cases. Requests for Code Cases should also indicate the applicable Code Editions and Addenda to which the proposed Code Case applies. 5 CODE INTERPRETATIONS (a) Requests for Code Interpretations shall provide the following: (1) Inquiry. Provide a condensed and precise ques- tion, omitting superfluous background information and, when possible, composed in such a way that a “yes” or a “no” Reply, with brief provisos if needed, is acceptable. The question should be technically and editorially correct. (2) Reply. Provide a proposed Reply that will clearly and concisely answer the Inquiry question. Preferably, the Reply should be “yes” or “no,” with brief provisos if needed. (3) Background Information. Provide any back- ground information thatwill assistthe Committee in under- standing the proposed Inquiry and Reply. (b) Requests for Code Interpretations must be limited to an interpretation of a particular requirement in the Code ora Code Case. The Committee cannotconsiderconsulting type requests such as the following: (1) a review of calculations, design drawings, weld- ing qualifications, or descriptions of equipment or parts to determine compliance with Code requirements; (2) a request for assistance in performing any Code- prescribed functions relating to, but not limited to, material selection, designs, calculations, fabrication, inspection, pressure testing, or installation; (3) a request seeking the rationale for Code require- ments. 6 SUBMITTALS Submittals to and responses from the Committee shall meet the following: (a) Submittal. Inquiries from Code users shall be in English and preferably be submitted in typewritten form; however, legible handwritten inquiries will also be consid- ered. They shall include the name, address, telephone num- ber, fax number, and e-mail address, if available, of the inquirer and be mailed to the following address: Secretary ASME Boiler and Pressure Vessel Committee Three Park Avenue New York, NY 10016-5990 As an alternative, inquiries may be submitted via e-mail to: SecretaryBPV@asme.org. (b) Response. The Secretary of the ASME Boiler and Pressure Vessel Committee or of the appropriate Subcom- mittee shall acknowledge receipt ofeach properly prepared inquiry and shall provide a written response to the inquirer upon completion ofthe requested action by the Code Com- mittee.
Mechanical Properties. Together with the specifica- tion for the material, the inquirer shall furnish the Commit- tee with adequate data on which to base design values for inclusion in the applicable tables. The data shall include values ofultimate tensile strength, yield strength, reduction of area, and elongation, at 100°F (or 50°C) intervals, from room temperature to 100°F (or 50°C) above the maximum intended use temperature, unless the maximum intended use temperature does notexceed100°F. Any heattreatment thatis required to producethe mechanical properties should be fully described. If adoption is desired at temperatures at which time- dependent behavior may be expected to control design values, stress-rupture and creep rate data for these time- dependentproperties shall be provided, starting attempera- tures about 50°F (or 25°C) below the temperature where time-dependent properties may govern (see Appendix 1 of Section II, Part D) and extending to about 100°F (or 50°C) above the maximum intended use temperature. The longest rupture time at each test temperature must be in excess of 6000 hr and the shortest about 100 hr, with at least three additional tests at stresses selected to provide rupture times nominally equally spaced in log (time); i.e., times nomi- nally of 100, 300, 800, 2200, and 6000 hr at each test temperature. Obviously, longer times and additional tests are beneficial.