Guided Bend Test is carried out with specialist personnel with computer controlled guided test machine.

The test is made on face and root of the test specimen taken from the weld. The aim of the test is determine the defects and/or ductility on weld and next ot it.

to pass the test, the material should provide below criterias;

a. The specimen should not break completely,
b. the cracks or breaks longer than 3,18mm lenght is not acceptable regardless of width.
c. any breaks or cracks longer than 3,18mm lenght and wider than %25 of the nominal thickness on base metal, haz and fusion line is not acceptable.

any cracks on the edge of the specimen which is smaller than 6,35mm lenght regardless the width should not be reason of rejection.

References: EN 910, EN ISO 377