I need to know what 1Cr18Ni9 is. Is it 304 Stainless Steel? Also, what is 40Cr, and QT500-7? I think the QT500-7 is some kind of Bronze or something. Any help would be great.
Thanks.
I am looking at having some custom gears made. The company who is going to make them is saying they want to make them out of "Carbon Steel 45". I don't know what this is, but I requested that the gears be non-magnetic. Can anyone point me to a recourse that can explain this steel's...