Its resistance to corrosion, and ability to withstand extreme temperatures, also stand out.
Most notable is its knowledge of aluminum.
Apple even comes up with new ways to create metals.
Titanium alloy in a storage area.Bloomberg Creative Photos / Getty
For example, in 2018, it announced that it had developed a newcarbon-free aluminum smelting method.
And so we’re very excited to see what it has come up with for the iPhone 15 Pro.
Heavy Metal
So why titanium?
Compared to steel, it is much lighter and also tougher.
The company’s track record of pushing boundaries makes this shift unsurprising.
Titanium can be used in alloys with some surprisingly diverse properties.
When made into a surgical plate to hold healing bones in place, it is extraordinarily rigid.
Combined with its lightness, any of these properties could be desirable in a phone.
Another advantage of titanium over steel is thatit can be anodized, like aluminum.
For example, early models suffered fromscreen hinges that would snapunder normal use.
Or not at first, anyway.
After a while,this paint would flake off, revealing the raw metal beneath.
