ASME SA-106 pdf free download
ASME SA-106 2019 pdf free download.SPECIFICATION FOR SEAMLESS CA RBON STEEL PIPE FOR HIGH-TEMPERATURE SERVICE.
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 alternaLive 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 10 be tested with a nondestructive electric tCst 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 of the letters “NH.” It shall be permissible for pipe meeting the requirements of 13.1 or 13.2 to be furnished where pipe without either the hydrostatic 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 ies 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 “Nif’ shall he appended to the product specification number and material grade shown on thc certification.
14 Nondestructive Electric Test
14.1 As an alternative to the hydrostatic tcst at the option of the manufacturer or where specified in the purchase order as an alternative or addition to the hydrostatic lest, the full body of each pipe shall be tested with a nondestructive electric test in acconiance with Practice E 213. E 309. or E 570. In such cases, the marking of each length of pipe so furnished shall include the letters NL)E” It is the intent of this nondestructive electric test to reject pipe with imperfections that produce test signals equal to or greater than that produced by the applicable calibration standard.
14.2 Where the nondestructive electric test is performed. the lengths shall be marked with the letters NDE’ The certification, where required, shall state “Nondcstnicfive Electric Tested” and shall indicate which of the tests was applied. Also, the letters “NDE” shall be appended to the product specilication number and material grade shown on the certilication.
14.3 The following information is for the benefit of the user of this specification:
14.3A The reference standards defined in 14.4 through 14.6 are convenient staiidards for calibration of nondestructive testing equipment. The dimensions of such standards are not to be construed as the minimum sizes of imperfections detectable by such equipment.
14.3.2 The ultrasonic testing referred to in this specification is capable of detecting the presence and location of significant longitudinally or circumfcrentially oriented imperfections: however, different techniques need to be employed for the detection of such differently oriented imperfections. Ultrasonic testing is not necessarily capable of detecting short, deep imperfections.
14.13 The eddy current examination referenced in this specification has the capability of detecting significant imperfections. especially of the short abrupt type.
14.3.4 The flux leakage examination referred to in this specification is capable of detecting the presence and location of significant longitudinally or transvcrscly oriented imperfections: however, different techniques need to be employed for the detection of such differently oriented imperfections.ASME SA-106 pdf download.
