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Jeremy Blohm

Is this wrought iron?

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I was in the junk yard the other day and seen a few of these old square headed bolts and they looked like wrought iron. So i brought one home to do the knick & break teast and im not 100% sure. It is different than some known wrought that i have. It didnt break though it did peal back like wrough but doesnt have the full string cheese look. Here is a picture.20180612_111753.jpg

This is a picture of some known wrought that i have.

20180612_111858.jpg

  

 

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Here is a more shallow nick. Could this be shear steel?

20180612_115214.jpg

Edited by Jeremy Blohm

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Spark it and see, but it looks like really clean wrought to me.

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It had quite a bit more sparks than the other wrought i have.i will get a picture of the spark

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Known wrought 20180612_140126.jpg

Unknown material at question 20180612_140110.jpg

1 hour ago, Alan Longmire said:

Spark it and see

Seems like it has a fair amount of carbon 

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It does indeed.  Might be shear steel, might not.  The next step is see if it hardens.  Then etch to see if there's a pattern.

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I plan on it. I am heading back to the scrap yard tomorrow to get the rest of the bolts. I also started making a vice mount for the receiver hitch for my truck so i can do the nick and break test at the yard.

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I bet there would be good contrast between it and the other wrought i have.

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I went back to the junk yard and i only found one more of these bolts. There was 3 more but i couldnt find the others. But on the upside the one bolt that was left is about 3/4x48 inches. Plus i found some other goodies 

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