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Flanging Test to ISO 8494, DIN 50139, ASTM A370

Compression test on metal tubes

The flanging test to ISO 8494, DIN 50139, ASTM A370 is a test method in which the end of a tube is bent by 90Β°.The test determines, through plastic deformation, whether tubes are suitable for flange formation.

To perform the test, the end of a tube specimen is formed into a flange with a corresponding tool until a flanging angle of 90Β° is achieved.The test is considered passed if the outer diameter of the flange reaches the value defined in the specification standards without crack formations in the weld seam or the tube.

The flanging test is normally performed on tubes having an outside diameter of 150 mm and a wall thickness no greater than 10 mm.

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