Good Evening All,

I was at the scrap yard today and found this neat (what ever it is) that looks like 12 Hardy Holes waiting to be used. I will need to double them up since the holes are not square on both sides.

So anyone know what this started out life as? 

 

Its a blade off of a road grader, or off of a front end loader. very strong steel.

Smokey, 

Cool, thanks for the info, I wonder if I can weld it with a 7014 arc welder. I am looking forward to trying. 

treat it like it's high carbon, preheat & post slow cool

Thank you for the information and I will do so. Getting this cut is going to make it good and toasty since I am going to be using a abrasive cut off wheel. May I ask what temp I need to pre-heat it to?  

Go to your favorite welding site and look up how to weld AR steel. (Abrasion Resistant)

And cutting AR steel Abrasively may be more than a little chore and use a bunch of disks!

So trying to cut Abrasion Resistant steel with an abrasive disk...... I can see how that will be a problem. Maybe need to look at using the band saw. I will take a look at WeldingWeb and a few others. 

thanks 

I have a lot of grader blades both old & new. The only way they cut easily is with an A/O cutting torch or plasma cutter. The band saw blade will only last a short time.

I have a plasma cutter, I think I will try that route. 

 

Thanks. 

Tempil has a good preheat chart... I used it for a couple of projects and it worked well enough for what I could manage to hold temps at... http://www.tempil.com/assets/1/31/welding_preheat_chart.pdf

 

Desmond, thank you for the information. I am going to try (and I try is the operative word) to weld this on to part of a forklift tine. If the arc welding will not work I could always try to us O/A and bronze braze it. On a side note I think it would be a very cool contrast to have the bronze on the steel but I digress. 

 

Thanks again   

It is also worth saying that this thing may very well be already work hardened to heck and back!

There was a "fad" of making twisting wrenches of that stuff about 20? years ago?

I have a large piece---over a foot wide with 1.5" sq holes in it---that I someday plan to make a hardy table from,. Right now it's on the dirt floor of my shop holding the acorn of my large postvise. (6.5" jaws mounted to the shop roof support---15' of telephone pole buried 5' and cemented in, 10' walls on the shop.) It's my heavy striking vise.

Steve's welding 7018 more than likely will crack though the middle of weld try 110-18 or better rod ! or look it stoody rod book  for better rod to use

We cut ar400 and ar500 plate on a bandsaw where i work it will still be a pain to cut but a bandsaw will do it all be it slowly just slow down your blade speed like you are cutting d2 and increase down force on the blade 

 

enjoy

dave

DuEulear,

Thanks for the info, just for the heck of it I used a very thin 4 1/2 cut off wheel from Harbor Fright and it would cut but at 20% the speed of cutting most anything else other than RR track. I switched to a 7" Diablo branded blade from the Home Despot that was a 1/8" think and it did cut and I was treated to a free light show at the same time. Man this stuff lives up to it's name. I had to stop with the 4 1/2" wheel when the angle grinder was getting to hot to handle. 

Next stop will be Plasma! 

Ernest 

 

Well folks I found the chart for welding AR steel and as long as you don't mind zooming in or have a 50" monitor you may find this useful. http://www.hobartbrothers.com/news/240/523/Three-Common-Challenges-of-Welding-Abrasion-Resistant-Plate-and-Their-Solutions.html

I have some I-beam and c-channel that I might try welding this stuff to and according to this site I need to pre-heat to 200 degrees and according to this site I should be able to use 6010 or 7018 rods. This plate welded on to some I-beam would make a nice portable hole one could bolt to a stump or some such. 

Now all I need to do it get the stuff cut. I had some almost dead band-saw blades for my portaband and a 5 inch cut took the best one from "mostly dead, a little alive" to dead dead. Next stop is the plasma cutter!

Thanks for the help.     

How were you planning on orienting the I-beam?  Flanges vertical or horizontal? Either way if you could post a pic of the completed project I'd like to see it.

Buzz, I will do so before and after.

Never made a twisting wrench out of it, but I make all my scrolling wrenches and forks from it.

 

Ht as stated by Thomas

Aren’t grader blades made from T1?

Beats me, all I know is it is hard!

If you need some I beam let me know. I have some sections about 22" long 4x6. 

I might just take you up on that. 

thanks 

Good Evening folks,

I have welded up my first crack at a portable hole using the grader blade and some I or H beam. I have not yet invoked the power of a grinder and some paint to make this welder what he ain't but I am pleased with how it came together.

The big question is if this I or H beam will provide enough support once bolted to a stump to be used as a hardy hole.

Have a good night.

Since you will be cutting 4" sq stock with a 16 pound sledge; NO!  Since you will be cutting 1/2" sq stock with a 2# hammer YES!