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Ed Caffrey's Workshop Talk to Ed Caffrey ... The Montana Bladesmith! Tips, tricks and more from an ABS Mastersmith.

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  #1  
Old 09-05-2012, 09:40 AM
schwatk schwatk is offline
 
Join Date: May 2010
Location: Alpine, CA.
Posts: 9
Need Help/Info for Rebar Stakes

Hi Everyone,

I'm new here and just starting to get into bladesmithing. I'm currently
getting my tools and equipment for my shop. I retire in April of 2013 and plan to
build my shop soon after retiring.

I have a friend who gave me some rebar to make some tent stakes for him.
They will have a bend in them like a shepards hook. I plan to forge in the
hook and the points.

The question I have is what do I need to do after forging to make sure the
hook and points aren't to soft or brittle.

As always, Thanks for any and all help.

Take care!

Joe
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Old 09-05-2012, 10:22 AM
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Julie Coffey Julie Coffey is offline
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Join Date: Oct 2004
Location: South Central Michigan
Posts: 390
This was a site our welding instructor forwarded us to, it might help.

http://www.technologystudent.com/equip1/heat1.htm

J


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Old 09-05-2012, 02:46 PM
jdale jdale is offline
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Join Date: Jan 2012
Location: Lansing MI
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ASTM standards on rebar focus alot more on elongation and tensile strength rather than chemical makeup. ASTM standards limit the high end of rebar at 30 points of carbon (grade 60 and 80). However, older rebar has less requirements so its really a crap shoot as to its carbon content. Clear as mud right?

Being in the construction industry i have made quite a few rebar knives and they will work....at least a while.
If i was using rebar for your uses i would go ahead and forge it out, let it cool, then use it.
If you want to get fancy forge two out, quench one in water and temper to somwhere in the range of purple to blue. than test it against the non tempered one. I dont think there will be much if any difference, but i have been surprised before.
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Old 09-05-2012, 05:18 PM
Doug Lester Doug Lester is offline
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I had to read you post a couple of times. As I understand it you are not going to be making a cutting blade but tent stakes. The rebar will work fine for what I think you want. After shaping I would just heat the stakes where they were forged, or all over, until they are hot enough to lose their attraction to a magnet and then just let them get a little brighter. Soak them at this color for a good minute or two with that thickness of material to make sure that the steel is heated throughout but don't let the steel get much brighter. Repeat that twice more. This will reduce grain growth that might have occurred during forging and increase the toughness of the stakes, which they will need more than strength. Do not quench them or, if you feel that you need to to speed up cooling, wait until all color has left the steel and then just about a minute longer.

Doug


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