The problem of internal stress and season cracking in brass tube has been studied for many years and technical literature contain many data on various phases of the subject.
In this paper, the author has studied the relation of processing in tube manufacture to internal stress and correlation between the cracking test by mereurous nitrate solution and the amount of stress measured by strip and ring method.
He touched briefly on the mechanism of the stress release on heating and on the influence of form of dies on internal stress in drawn tube.
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