Test pieces cut transversely to direction of rolling

Eor sheets of thickness 10 mm. or above, cold work to the amount of 50 % seems to be the maximum possible further 

The material, upon which these tests were carried out, had been cold worked to the extent of 50 %, and test pieces were cut from it longitudinally and transversely to the direction of rolling. Up to 300° C. the metal was annealed 

The metal was allowed to age for eight days after cooling before being tested. 

It is evident from these figures, that, whatever the rate of cooling and in whatever direction the test pieces are. cut, 

The following table summarises the results obtained on the longitudinal test pieces for these temperatures, after 50 % cold work — 

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Fig. 41 (test pieces cut transversely to direction of rolling). The same general remarks apply, but there is an inflexion in the Elongation curve. 

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