It would indeed appear, by metallurgical analysis, that it does qualify as a 7000 series alloy, but one of Apple&#x27;s own devising.<p><a href="http:&#x2F;&#x2F;leancrew.com&#x2F;all-this&#x2F;2015&#x2F;08&#x2F;aluminum-and-strength&#x2F;" rel="nofollow">http:&#x2F;&#x2F;leancrew.com&#x2F;all-this&#x2F;2015&#x2F;08&#x2F;aluminum-and-strength&#x2F;</a>