nicole Posted February 16, 2014 Share Posted February 16, 2014 I happened on some large roller bearings and am trying to figure out their composition. Their physical dimensions are ~1.425 D X 2.9" height, with a slight 0.050 taper. Using the tools available I calculated their density was 7.45 g/cubic centimeter. They showed some attraction to a magnet. Picture is attached. I looked up steel density and it is usually near 7.8 for a carbon steel. Chromium is less dense however and the density I determined suggests these bearings may be stainless steel; but I thought they would not be magnetic. Further reading showed that while only austenitic SS is non-magnetic, even it can become magnetic from cold working. An old bearing could be considered to have been cold worked? This seems to leave me no further along, and while this is not critical because I am just going to play around with them, it would be nice to have a little more insight into their composition. Any thoughts out there?. Quote Link to comment Share on other sites More sharing options...
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