ISO 5178:2019 pdf download – Destructive tests on welds in metallic materials – Longitudinal tensile test on weld metal in fusion welded joints.
6 Removal of test specimens 6.1 Location The test specimen shall be taken longitudinally from the welded joint of the manufactured product or from the test piece. After machining, the parallel length of the test specimen shall consist only of weld metal (see Figures 1 and 2). To enable correct positioning of the test specimen in the joint, the joint cross-section at both ends of the test specimen can be macroetched. 6.2 Marking Each test piece shall be marked in order to identify its exact location in the manufactured product or in the joint from which it has been removed. Each test specimen shall be marked in order to identify its exact location in the test piece from which it has been taken. When removed from the test piece, each test specimen shall be marked. 6.3 Heat treatment and/or ageing No heat treatment shall be applied to the welded joint or to the test specimen unless it is specified or permitted by the relevant application standard dealing with the welded joint to be tested. Details of any heat treatment shall be recorded in the test report. If natural ageing of aluminium alloys takes place, the time between welding and testing shall be recorded. NOTE The presence of hydrogen in ferrous weld metals can adversely affect the test results and suitable hydrogen release treatment.
6.4 Extraction 6.4.1 General The mechanical or thermal processes used to extract the test specimen shall not change the properties of the test specimen in any way. 6.4.2 Steel Shearing is excluded for thicknesses greater than 8 mm. If thermal cutting or other cutting methods which can affect the cut surfaces are used to cut the test specimen from the welded plate, or from the test piece, the cuts shall be made at a distance greater than or equal to 8 mm from the surfaces of the final parallel length of the test specimen. Thermal cutting shall not be used parallel to the original surface of the welded plate or of the test piece. 6.4.3 Other metallic material Shearing and thermal cutting are excluded and only machining (e.g. sawing and turning) shall be used.