Dog Bone Safety Question

[phaedrus]

I have just finished the Dog Bone modification project detailed in the following thread.
http://forums.banditalley.net/viewtopic.php?t=199&highlight=dog+bones

After I completed the project I thought about the safety implications of this change.  I purchased the Hot Rolled Carbon Steel from Home Depot.  Does anyone know the tensile strength of this steel?
I noticed that Dale Walker's site says that his links use 1018 Hot rolled Carbon Steel.  I looked this up -- it has a tensile strength of 70,000 psi.

Is all Hot Rolled Carbon steel basically the same (providing the thickness and size are the same)?

I don't know much about metalurgy.
Is this homemade modification safe?  Opinions??

[Red01]

There's multiple grades and differing strengths. Perhaps you can find out from HD what alloy theirs is if you're really worried, but I probably wouldn't sweat it too much since some vendors make these out of aluminum - high strength alloys, of course, but still not as strong as cold-rolled steel alloys.