Engineer Claims Titanium Does Not Corrode

Object Zero posted that titanium does not corrode, unlike steel which requires ongoing maintenance on structures like the Forth Bridge. The account noted titanium's use in surgical implants and compared its hardness to A36 steel. Linus Mixson replied that titanium is reactive, hard to weld under inert gas, and difficult to form. Bart van den Broeck pointed out a titanium museum built with COR-TEN steel. Florian Meier noted titanium dioxide abundance in paint. Other replies raised cost, stiffness at half of steel, lack of rolling plants, and welding challenges.