ASME SA-106 2019 pdf free.SPECIFICATION FOR SEAMLESS CARBON STEEL PIPE FOR HIGH-TEMPERATURE SERVICE.
12. Flattening Tests 12.1 Although testing is not required, pipe shall be capable ofmeeting the flattening test requirements of Sup- plementary Requirement S3, if tested.
13. Hydrostatic Test 13.1 Except as allowed by 13.2, 13.3, and 13.4, each length of pipe shall be subjected to the hydrostatic test without leakage through the pipe wall. 13.2 As an alternative to the hydrostatic test at the option of the manufacturer or where specified in the pur- chase order, it shall be permissible for the full body of each pipe to be tested with a nondestructive electric test described in Section 14. 13.3 Where specified in the purchase order, it shall be permissible for pipe to be furnished without the hydrostatic test and without the nondestructive electric test in Section 14; in this case, each length so furnished shall include the mandatory marking ofthe letters “NH.” It shall be permissible for pipe meeting the requirements of 13.1 or13.2 to be furnished where pipe withouteitherthe hydro- static or nondestructive electric test has been specified in the purchase order; in this case, such pipe need not be marked with the letters “NH.” Pipe that has failed either the hydrostatic test of 13.1 or the nondestructive electric test of 13.2 shall not be furnished as “NH” pipe. 13.4 Where the hydrostatic test and the nondestructive electric test are omitted and the lengths marked with the letters “NH,” the certification, where required, shall clearly state “Not Hydrostatically Tested,” and the letters “NH” shall be appended to the product specification number and material grade shown on the certification.
14.5.2 Transverse TangentialNotch —Using a round tool or file with a 1 ⁄ 4 in. [6 mm] diameter, a notch shall be filed or milled tangential to the surface and transverse to the longitudinal axis of the pipe. The notch shall have a depth not exceeding 12 1 ⁄ 2 % of the specified wall thickness of the pipe or 0.004 in. [0.1 mm], whichever is greater.
14.5.3 Longitudinal Notch — A notch 0.031 in. [0.8 mm] or less in width shall be machined in a radial plane parallel to the tube axis on the outside surface of the pipe, to have a depth not exceeding 12 1 ⁄ 2 % of the specified wall thickness ofthe tube or 0.004 in. [0.1 mm], whichever is greater. The length ofthe notch shall be compatible with the testing method.
14.5.4 Compatibility — The discontinuity in the cali- bration pipe shall be compatible with the testing equipment and the method being used. 14.6 For flux leakage testing, the longitudinal calibra- tion reference notches shall be straight-sided notches machined in a radial plane parallel to the pipe axis. For wall thicknesses under 1 ⁄ 2 in. [12.7 mm], outside and inside notches shall be used; for wall thicknesses equal to and above 1 ⁄ 2 in. [12.7 mm], only an outside notch shall be used. Notch depth shall not exceed 12 1 ⁄ 2 % of the specified wall thickness, or 0.004 in. [0.1 mm], whichever is greater. notch length shall not exceed 1 in. [25 mm], and the width shall not exceed the depth. Outside diameter and inside diameternotches shall be located sufficiently apart to allow separation and identification of the signals.ASME SA-106 pdf download.