[blueflyer]

Does anyone know what material the Lycoming Cylinder studs made out of? Are they carbon steel?

 

[lr172]

I do not know, but assume they are a carbon steel alloy that would resemble the elemental makeup of a common Grade 5 bolt.

 

[blueflyer]

That's about what I thought too. Thanks for the input.

 

[AlexPeterson]

Does anyone know what material the Lycoming Cylinder studs made out of? Are they carbon steel?

All steel has carbon - I'm curious why you asked?

 

[blueflyer]

I am doing research into cylinder studs because I am having to replace a couple. In researching which studs are right for my engine, I began to wonder about what they were made of, and I didn't see that in any documentation I found.

 

[BillL]

If you really want to know you will have to burrow down in the certification documentation. It has everything there. I would be surprised if the spec is near a grade 5 though. just due to the required infinite fatigue life. Engine structural fasteners can evolve to be quite unique depending on failure history. Particularly, main, head, connecting rod etc.