Bend Test

Testing Range:

Full penetration butt joint.

Bend test specimens of butt joint and the test process should be consistent with GB /T2653 requirements.

When the thickness is less than 12mm, two face and two root bend test specimens shall be tested.When the thickness is greater than or equal to 12mm, four side bend specimens are recommended instead of root and face bend tests.

For dissimilarmetal joints or heterogeneous butt joint in plates, one root and one face longitudinal bend test specimen may be used instead of four transverse bend tests.

The diameter of the former or the inner roller shall be 4t and the bending angle shall be 180°for parent metal with elongation A≥20%.