ISO 7438 Metallic Materials - Bending Test

Metal Test Laboratory

ISO 7438 Metallic Materials - Bending Test

EUROLAB, with its state-of-the-art accredited laboratories and expert team, provides precise and fast testing services within the scope of ISO 7438 testing. This standard specifies a method for determining the ability of metallic materials to undergo plastic deformation during bending.

ISO 7438 Metallic Materials - Bending Test

This standard applies to test pieces from metallic products as specified in the relevant product standard. It does not apply to certain materials or products for which other standards are available, such as full-section pipes or welded joints.

The bending test consists of subjecting a test piece of round, square, rectangular or polygonal cross-section to plastic deformation by bending without changing the loading direction until a certain bending angle is reached.

The axes of the two legs of the test piece remain in a plane perpendicular to the axis of bending. In the case of a 180° bend, the two side surfaces may lie against each other or be parallel at a certain distance, depending on the requirements of the product standard, an insert is used to control this distance.

Round, square, rectangular or polygonal cross-section test pieces will be used in the experiment. During the sampling of the test pieces, the areas of the material affected by cutting or flame cutting and similar processes will be removed. However, it is acceptable to test a test piece with unaffected parts provided the result is satisfactory.

The thickness of test pieces from sheets, strips and sections should be equal to the thickness of the product to be tested. If the product thickness is more than 25 mm, it can be reduced to a thickness of not less than 25 mm by processing a surface. During bending, the raw side should be on the tension side surface of the test piece.

EUROLAB assists manufacturers with ISO 7438 test compliance. Our test experts, with their professional working mission and principles, provide you, our manufacturers and suppliers, the best service and controlled testing process in our laboratories. Thanks to these services, businesses receive more effective, high-performance and quality testing services and provide safe, fast and uninterrupted service to their customers.

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