Spark testing steel

[Rick Baum]

Can someone refresh me on this? It seems that I read that you can judge, to some degree, what type of steel you have by color of the sparks that are created when grinding it. Is this true or just an urban ledgend?

Thanks,
Rick

 

[Mike Hull]

True. Here you go.
http://www.sweethaven.com/academic/lessons/021100/00/lessonmain.asp?lesNum=1&modNum=4

 

[Rick Baum]

Thanks Mike, you're awsome!! Just what the doctor ordered. I've said it before and I'll say it again... You guys and this forum are great!

Thanks,
Rick