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ISO 9649:1990

Withdrawn Date published:

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Metallic materials — Wire — Reverse torsion test

Specifies a method for determining the ability of wire of diameter 0,3 mm to 10,0 mm inclusive to undergo plastic deformation during reverse torsion. This test is used for detecting surface and internal defects in wires. Gives symbols and designations, principle, testing machine, test piece, procedure and test report.

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ISO 9649:1990

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