Why one cannot spec titanium lug bolts on the cheaper rims?

My speculation is that titanium is known as one of the galling metals. Some dissimilar metals when used in thread and compression applications will tear each other up (known as galling). Aside from lubrication, titanium is typically used with itself to prevent galling when joining parts. Perhaps the higher level trims utilize titanium studs, etc. and therefore cost more? Just my 2-cents.

https://www.brindleymetals.co.uk/what-is-galling-and-how-to-avoid-it/

 

In addition to galling, dissimilar metals in contact can create a battery- literally causing corrosion at the interface. Titanium is also more flexible than steel, threads can literally cold weld to each other if enough force is applied. Finally titanium is notch sensitive- scratches can lead to crack propagation.
Despite these issues titanium is stronger than steel and lighter so for the right application it’s a win win. Unless the wheels are titanium and the bolts thread into titanium sleeves I would stay away. There is little if any benefit and a lot of cost

 

Titanium is not stronger than steel. Its lighter than steel and stronger than aluminum. Steel is stronger and heavier.

 

I should have prefaced titanium weight for weight is stronger than steel. Steel has a higher tensile strength

 

Its a scam the Ti bolts work fine on the cast wheels

 

I think the Pista wheels and the TDF wheels are not titanium, and those have Ti bolts, so I think they are fine to use together

 

Because they want to sell the more expensive forged rims where you can add the titanium bolts.
Daniel