15N20 or?
Hi Ed
I am curious if steel type can be determined by markings on the steel? While I cannot say that I am a fan of using used, unknown steel, I have about 70 pounds of some steel that I suspect to be 15N20 that I got for the asking.
The reason I got it is because I found some markings on the steel that were the same as some 15N20 that I had purchased. The markings are "UDDEHOLM" with 3 circles enclosed in a rectangle before and after. Below that it says "Made in Sweeden"
Are these markings unique to 15N20 or is it just the markings of a Sweedish steel company that makes multiple steel types?
Thanks for any info
Brian
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