Ferrobronze alloy properties

[Hippo41]

Can anyone help me with the material properties of two alloys Fe+55%CuSn10+0.5%C and Fe+40%CuSn+1%C. Regret I am no metallurgist and I cannot find anything on the net.

I'm trying to find out why some bearing bushings have failed prematurely. Any help would be greatly appreciated.

Thanks in advance.

 

[btrueblood]

Can you list out the material composition a little better, do you mean Fe (balance), Copper 55%, Sn 10%, Carbon 0.5% for the first alloy? Or is it Fe 55, Cu+Sn 10, C 0.5?

If the second is true, then that alloy is close to FC 1000 (with exception to the tin content), according the the MPIF Standard 35, see

http://www.mpif.org.

 

[Hippo41]

I have written it as it appears on the drawings/purchasing documents. Regret this is not my speciality - but I'm trying to understand a problem before I tackle ther factory engineers concerned who a) don't speak good English and b) would probably baffle me with science anyway.

I am told by the factory engineers that there "will be no difference in operating performance" of the two alloys. Well tests have disproved that theory - and my "mechanical mind" tells me that differeing ratios of materials MUST alter performance.

If it makes no sense to you then don't waste any more of your time on it. I'll just have to ask the factory for whatever information they can offer and go from there. Thanks - you have at least given me a course of action!