Most abrasion resistant hardfacing rod
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  1. #1
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    Most abrasion resistant hardfacing rod

    In your opinion what do you believe are the most abrasion resist hard facing rods for smaw and gtaw?
    Say you don't have to worry about forging the part, heat treating or reheat treating and single layer would be acceptable but 2 or 3 layers would be better.
    Would it be a homogeneous high alloy tungsten, chromium or expensive high dollar cobalt rod?
    Or a carbide crystal filled rod, like a bronium tube?
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  2. #2
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    Re: Most abrasion resistant hardfacing rod


  3. #3
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    Re: Most abrasion resistant hardfacing rod

    Always used Stoody "31" at the mines on ground engaging equipment such as buckets and cutting edges. Really don't get a lot more abrasive than that and it held up well.
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  4. #4
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    Re: Most abrasion resistant hardfacing rod

    Look for a hardfacing rod that creates a deposit with many chromium carbide deposits. the steel that surrounds the carbides wears away exposing an ultra hard studded surface.

    If the abrasion happens at very high temperatures then the cobalt and tungsten carbide hardfacing products would be a better choice. Cobalt alloys retain strength much better at elevated temps, and tungsten carbide doesn't breakdown until much, much higher temps. Chrome carbides will re-dissolve into the matrix when temps rise above about 1500F

    the hardfacing alloys that don't rely on carbides are better suited to metal on metal wear and high temp corrosion wear situations.

    To give a better recomendation I'd need to know a lot more about your specific application.
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  5. #5
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    Re: Most abrasion resistant hardfacing rod

    Oh no elevated temps, no corrosive environment.
    My application is mower blades.
    The first test I did using US forge high alloy smaw hard facing rods I got on the clearance rack at tractor supply has been very encouraging.
    The hard face edge is staying some what sharp for at least 10 to 20% longer than the unaltered blade on the other hub.
    To the point where I can look back and see one side of the mower is cutting much more efficiently than the other side.

    I have some stoody31 in 5/32. I used that on my brush shredder blades.
    I should try to find some, as in not a whole case of 3/32 stoody31, for the riding mower blades and so I can tip the brush shredder blades. 5/32 @ 160 amps will melt through the edge of the blade, I learned that by practicing on the old blades.
    Last edited by mad welder 4; 04-12-2018 at 02:02 PM.
    old Miller spectrum 625
    Lincoln SP-135 T, CO2+0.025 wire
    Craftsman 230amp AC/DC and WP-18V torch
    Craftsman 100amp AC/DC and WP-17V torch
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    Home made 4 transformer spot welder
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  6. #6
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    Re: Most abrasion resistant hardfacing rod

    How hard is it to sharpen them?

  7. #7
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    Re: Most abrasion resistant hardfacing rod

    It's fairly easy to sharpen the riding mower blades.
    I put out the car ramps, come in from the field drive the mower up on them, swap blades (usually), fuel, swap the air filter if the engine seems like it was choking, push the mower off the ramps and check oil.
    The brush shredder is a little more difficult to get the blades off. Balancing them is a little bit more difficult than compared to the mower.
    Now that the brush shredder has the correct blade hub on there it should be a little bit easier.
    old Miller spectrum 625
    Lincoln SP-135 T, CO2+0.025 wire
    Craftsman 230amp AC/DC and WP-18V torch
    Craftsman 100amp AC/DC and WP-17V torch
    Century 115-004 HF arc stabilizer
    Home made 4 transformer spot welder
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  8. #8
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    Re: Most abrasion resistant hardfacing rod

    UTP 711B, but you wont have much luck grinding it.

  9. #9
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    Re: Most abrasion resistant hardfacing rod

    Is that also a carbide crystal bearing hard face filler?
    old Miller spectrum 625
    Lincoln SP-135 T, CO2+0.025 wire
    Craftsman 230amp AC/DC and WP-18V torch
    Craftsman 100amp AC/DC and WP-17V torch
    Century 115-004 HF arc stabilizer
    Home made 4 transformer spot welder
    Home made alternator welder

  10. #10
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    Re: Most abrasion resistant hardfacing rod

    Quote Originally Posted by mad welder 4 View Post
    Is that also a carbide crystal bearing hard face filler?
    No carbide, just a very hard chrome base rod.

  11. #11
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    Re: Most abrasion resistant hardfacing rod

    Mower blades are made tough so they won't break when you hit a stump or other obstruction. A hard coating will crack if the blade bends. That crack can initiate a crack in the base metal, possibly resulting in throwing a blade.

  12. #12
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    Re: Most abrasion resistant hardfacing rod

    Quote Originally Posted by bent View Post
    Mower blades are made tough so they won't break when you hit a stump or other obstruction. A hard coating will crack if the blade bends. That crack can initiate a crack in the base metal, possibly resulting in throwing a blade.
    Oh good god don't want that happening.
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  13. #13
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    Re: Most abrasion resistant hardfacing rod

    I have ran over so much crap left by the last people that lived here that if I was going to break my test blade I would have broken it by now.
    I have probably put a year or 2 worth of wear on these blades in a week.
    Plus I will know if the blade bends, it will be digging into the dirt. If I bend one that bad I will probably toss it in the scrap pile.
    Oregon, the guys who make all the chain saw stuff make carbide tipped mower blades for all kinds of mowers, but they are around $50 each.
    I could destroy one of these finding a present left by the last owners. Hence the reason I want to make my own carbide tipped blades for less than $15 each.
    I found severely damaged mower blades left in the garage by the last owners finding their junk they left laying around, so I already know what can happen.
    I sharpen or swap the blades every gas tank fill up because then abrasion is so bad here they dull quickly or when ever I find baleing wire or barbed wire that wraps around the blades, so a cracked blade failure is unlikely.
    Last edited by mad welder 4; 04-15-2018 at 09:55 PM.

  14. #14
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    Re: Most abrasion resistant hardfacing rod

    Sounds like you may be picking a lot of sand try running the engine slower so maybe the blade won't suck up so much the sand.
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  15. #15
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    Re: Most abrasion resistant hardfacing rod

    Lots of sand, dirt and grit.
    Low lift blades, running slower, I have tried it all. Best just to turn it up and power through it.
    old Miller spectrum 625
    Lincoln SP-135 T, CO2+0.025 wire
    Craftsman 230amp AC/DC and WP-18V torch
    Craftsman 100amp AC/DC and WP-17V torch
    Century 115-004 HF arc stabilizer
    Home made 4 transformer spot welder
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  16. #16
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    Re: Most abrasion resistant hardfacing rod

    Hate it when i hit rocks and such with the 5 ft bush hog. It really dulls the blades quickly
    Backed my CATMA over your CARMA oops clusmy me

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  17. #17
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    Re: Most abrasion resistant hardfacing rod

    I have my little 4.5 foot wide bush shredder. I bought new blades for it, stoody31 hard faced the underside of the cutting blade edges. But it's at the shop getting the correct blade hub found and ordered and the correct oil seals found and ordered. I can change the oil seals, if I have the correct ones.
    Last edited by mad welder 4; 04-16-2018 at 11:08 AM.
    old Miller spectrum 625
    Lincoln SP-135 T, CO2+0.025 wire
    Craftsman 230amp AC/DC and WP-18V torch
    Craftsman 100amp AC/DC and WP-17V torch
    Century 115-004 HF arc stabilizer
    Home made 4 transformer spot welder
    Home made alternator welder

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