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| | ElongationIncrease in length which occurs before a metal is fractured, when subjected to stress. It is the increase in gauge length (measured after rupture) divided by original gauge length. This is usually expressed as a percentage of the original length and is a measure of the ductility of the metal. Higher elongation indicates higher ductility. Note: Elongation cannot be used to predict behavior of materials subjected to sudden or repeated loading.
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