LOOKING FOR A STEEL

[james78]

Looking for a steel with properties as follows
That will not gall under high-speed dry friction contact

Any feed back appreciated

 

[unclesyd]

A little more information is needed.
Is this steel on steel?
What speed and loads?
Are you referring to only CS?

And anything else that might help in visualizing your problem.

 

[james78]

Speed will be approx. 230m/s
Load 800N
Steel on steel

(This is for a thrust surface)

Thanks

 

[BillPSU]

I would hate to have steel on steel. If you cannot have a lubricant present then grey iron has free graphite which acts as a lubricant. Make the non-moving surface grey iron and the moving surface harden steel. You can buy grey iron in continuously cast bar from Durabar.

 

[steelmaking]

It will be better to use nodular iron, which have mechanical proporties like a steel, but free carbon is like lubricant.