ASME SA53 pdf free download

ASME SA53-2013 pdf free download.SPECIFICATION FOR PIPE, STEEL, BLACK AND HOT-DIPPED, ZINC-COATED, WELDED AND SEAMLESS.
9.3 Eleciric-Resisrance- Welded Pipe — A test specimen at least 4 in. 1100 mm] in length shall he flattened cold between parallel plates in thrcc steps. with thc weld located either 00 or 90° from the line of direction of force as required in 9.3.1 or 9.3.2. whichever is applicable. During the first step. which is a test for ductility of the weld, no cracks or breaks on the inside or outside surfaces at the weld shall occur until the distance between the plates is less than two thirds of the specified diameter of the pipe. As a second step. the flattening shall be continued as a test for ductility away from the weld. During the second step. no cracks or breaks on the inside or outside surfaces away from the weld, except as provided for in 9.7, shall occur until the distance between the plates is less than one third of the specified outside diameter of the pipe hut is not less than five times the wall thickness of the pipe. During the third step, which is a test for soundness, the flattening shall be continued until the test specimen breaks or the opposite walls of the pipe meet. Evidence of laminated or unsound material or of Incomplete weld that is revealed by the flattening test shall he cause for rejection.
9.3.1 For pipe produced in single lengths. the flattening test specified in 9.3 shall he made using a test specimen taken from each end of each length of pipe. The tests from each end shall be made alternately with the weld at 0° and at 900 from the line of direction of force.
9.3.2 For pipe produced in multiple lengths. the flattening test specified in 9.3 shall be made as follows:
9.3.2.1 Test specimens taken from, and representative of, the front end of the first pipe intended to he supplied from each coil, the back end of the last pipe intended to be supplied from each coil, and each side of any intermediate weld stop location shall be flattened with the weld located at 90° from the line of direction of force.
9.3.2.2 Test specimens taken from pipe at any two locations intermediate to the front end of the first pipe and the back end of the last pipe intended to be supplied from each coil shall he flattened with the weld located at 0° from the line of direction of force.
9.3.3 For pipe that is to he subsequently reheated throughout its cross section and hot formed by a reducing process. the manufacturer shall have the option of obtaining the flattening test specimens required by 9.3.1 or 9.3.2. whichever is applicable, either prior to or after such hot reducing.
9A (‘ontitwous-Welded Pipe -— A test specimen at leas 4 in. 1100 mmj in length shall be flattened cold between parallel plates in three steps. The weld shall be located at 90 from the line of direction of forec. During the first step. which is a test for ductility of the weld, no cracks or breaks on the inside. outside, or end surfaces at the weld shall occur until the distance between the plates is less than three fourths of the specified diameter of the pipe. As a second step, the flattening shall be continued as a test for ductility away from the weld, During the second step. no cracks or breaks on the inside, outside, or end surfaces away from the weld, except as provided for in 9.7, shall occur until the distance between the plates is less than 6(Y of the specified outside diameter of the pipe. During the third step, which is a test for soundness, the flattening shall be continued until the test specimen breaks or the opposite walk of the pipe meet. Evidence of laminated or unsound material or of incomplete weld that is revealed by the flattening lest shall be cause for rejection.
9.5 Surface imperfections in the test specimen before flattening, but revealed during the first step of the flattening lest, shall be judged in accordance with the finish requirements in Section 14.
9.6 Superficial ruptures as a result of surface imperfections shall not be cause for rejection.
9.7 When low D-to-i ratio tubulars are tested, because the strain imposed due to geometry is unreasonably high on the inside surface at the 6 and 12 o’clock locations. cracks at these locations shall not be cause for rejection if the D-lo-t ratio is less than 10.
10. H’drostatic Test
10.1 The hydrostatic Lest shall be applied, without leakage through the pipe wall, to each length of pipe except as provided in 11.2 for seamless pipe.
10.2 Each length of plain-end pipe shall be hydrostatically tested to the pressures prescribed in Table X2.2, and each threaded-and-coupled length shall be hydrostatically tested to the pressures prescribed in Table X2.3. It shall be permissible, at the discretion of the manufacturer, to perform the hydrostatic test on pipe with plain ends, with threads only. or with threads and couplings and also shall be permissible to test pipe in either single lengths or multiple lengths.ASME SA53 pdf download.