Tensile strength is one of the characteristics most commonly specified by purchasers of metal castings, as it gives a good indication that the part will function as designed. The tensile test verifies the strength of the metal used to make a heat of castings. Generally, the process starts when a sample of metal is poured into a mold designed for producing tensile bar samples. Once the metal solidifies, the sample is machined to specific dimensions and pulled apart by a device that measures the force required to do so. Once the bar is pulled apart, the strength of the metal is calculated in terms of pounds per square inch.
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