Kordwar Posted August 25, 2016 Share Posted August 25, 2016 Good evening! I've been a lurker for some time now but I found some steel at work today and can't seem to figure out what it is so I figured it was time to ask some experts. Thank you in advance to anyone who looks! Quote Link to comment Share on other sites More sharing options...
ThomasPowers Posted August 25, 2016 Share Posted August 25, 2016 Looks like the tip of a brush hog blade to me. Others? The alloy would be what alloy *that* manufacturer used at *that* time...Spark testing would help narrow it down. Quote Link to comment Share on other sites More sharing options...
Kordwar Posted August 25, 2016 Author Share Posted August 25, 2016 Throws off some bright sparks, short bursts. So I guess it's a mild steel? Quote Link to comment Share on other sites More sharing options...
ThomasPowers Posted August 25, 2016 Share Posted August 25, 2016 Yes, No, Maybe; as we have no clue as to how you evaluate "Throws off some bright sparks, short bursts." Quote Link to comment Share on other sites More sharing options...
Kordwar Posted August 25, 2016 Author Share Posted August 25, 2016 Sorry, I realized how bad of a description that is after I hit submit. I can snap a picture of the sparks from the grinder when I get to work tomorrow. If I had to go by memory and by the chart in "Metallurgy Made Simple" I would say they were "many fine repeating sprigs" so possibly manganese steel? I think? Quote Link to comment Share on other sites More sharing options...
Frosty Posted August 25, 2016 Share Posted August 25, 2016 Looks like a worn/broken cutting edge, the break is through runner bolt hole. but . . . ? Frosty The Lucky. Quote Link to comment Share on other sites More sharing options...
Kordwar Posted August 26, 2016 Author Share Posted August 26, 2016 Coworker found it sitting on a rock while he was walking around picking up trash, very possible one of the landscapers hit one of the "ornamental" rocks around the driveway. Just seemed too big to be a mower blade, but I do agree it looks like it snapped at a bolt hole. Also: it's nice to meet you frosty and Thomas, I always look forward to your responses in threads and you've unknowingly helped me a lot in my short time (about 9 months) forging. Quote Link to comment Share on other sites More sharing options...
NickOHH Posted August 26, 2016 Share Posted August 26, 2016 I have hit lots of rocks and various other hard objects mowing grass, trashed hundreds of blades and have never actually broken one, they all just bend, not saying impossible but I have never seen one break off in the past 16 years. Quote Link to comment Share on other sites More sharing options...
jimmy seale Posted August 26, 2016 Share Posted August 26, 2016 Wear plate/blade for a bucket,grader,etc, my guess it is a hard face steel Quote Link to comment Share on other sites More sharing options...
Frosty Posted August 26, 2016 Share Posted August 26, 2016 Unknowingly helpful is a specialty of mine. Frosty The Lucky. Quote Link to comment Share on other sites More sharing options...
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