Use 45% Silver Solder to Braze Steel and Copper

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  • čas přidán 28. 08. 2024
  • Clayton Peeples shows how to use 45% silver solder to braze steel and copper. Bryan explains the difference between his and Clayton's approaches.
    Bryan only applies flux to the male end of a connection per most manufacturers' recommendations. He does that to avoid getting flux inside the lines. Bryan also avoids using the 15% silver rod altogether because it contains phosphorus, which doesn't react properly with steel. He would also flow nitrogen to prevent oxides from building up on the copper tubing and would protect the angle valve with a wet rag or Refrigeration Technologies WetRag to avoid damaging it. However, Bryan thinks that Clayton's overall process is very good.
    Before brazing, Clayton cleans the copper and steel with sandpaper. Then, he applies the flux to the copper and steel. He mid-seats the valve to ensure that the seals don't get stuck during the brazing process. Clayton then uses a 10-20 mixture of acetylene and oxygen (respectively) for his brazing torch. He starts off by heating the copper, which allows the 45% rod to be drawn into the joint via capillary action. The final result is a clean brazed joint.
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Komentáře • 36

  • @terryj.macmullen9968
    @terryj.macmullen9968 Před 5 lety +6

    be careful with the heat.overheat will ruin the flux.heat joint until flux takes on a water like appearance and then apply silver solder.

  • @denisthemenace.
    @denisthemenace. Před 5 lety +2

    A wet rag around the valve at the spindle end helps protect the gland packing

  • @hanzmoeman511
    @hanzmoeman511 Před 3 lety +2

    Good idea to store that full oxygen bottle right below your lit flame. Think I’ll try that.

  • @boomerangeruno4585
    @boomerangeruno4585 Před 3 lety

    Unfortunately I’m on a roof doing these not at a table in my shop. We’re dealing with steel hub compressors and it’s way harder to get in there than this. That’s the info I was looking for, but this video came the closest to helpful I’ve found. I’m going to try the sticks today and see how that works. Thankyou

  • @jaredj631
    @jaredj631 Před 4 lety +1

    I Just reference this video on a job. I can confirm that 56% Uncoated also works. I did 5/16 copper to steal condenser coil. I also followed up with some 15%. The joint looked great. I used plenty of flux on the copper female end only. True Mfg. lowboy prep fridge.

  • @terryj.macmullen9968
    @terryj.macmullen9968 Před 5 lety +1

    you have to really prepare your fit up well.cleaning the joint is an understatement.a lot of times,you ll get one shot at this.

  • @rustyshackleford3099
    @rustyshackleford3099 Před 5 lety +2

    Prefer flux core. When doing large size copper to steal the flux will burn off. Flux core applies the flux after the fitting is hot and prevents burn off.

  • @airmechanical7163
    @airmechanical7163 Před 5 lety +7

    Flux the pole not the hole.

  • @KlimatyzacjaKatowicepl
    @KlimatyzacjaKatowicepl Před 4 lety +1

    Greetings from Poland :)

  • @kennethlobo4420
    @kennethlobo4420 Před 2 lety

    Thanks for the Tips.God Bless

  • @mikefreedom5612
    @mikefreedom5612 Před 5 lety

    Thanks for video, but I know you need to heat the fitting then you heat the tube, because there is Aur gap between both that prevents a good heat transfer

  • @rumsin300
    @rumsin300 Před 4 lety +7

    The guy that was brazing this needs to go back to basics. What a mess? Whenever using emery cloth? Should always clean the loose abrasive material from the base metals before applying flux or soldering as thesesmallparticles areabrasive andwillend up in the circuit and contaminate. Should never apply flux inside the female joint in this case it was the steel valve body. Try not to apply flux all the way near the end of the male pipe. Always heat the steel and not the copper when adapting steel to copper. DO NOT TRY THIS PRACTICE!!!

    • @picklerix6162
      @picklerix6162 Před 3 lety +2

      Yeah, not sure where this guy learned these practices.

  • @Crazy8Moonshiners
    @Crazy8Moonshiners Před 2 lety

    Great information!!!

  • @frankduarte7109
    @frankduarte7109 Před 2 měsíci

    I’ve seen on some txv it’s stainless and on the inside it’s copper could you use 15 or would you have to use 56 or 45

  • @mingmignwen1686
    @mingmignwen1686 Před 2 měsíci

    My exam question what’s the flow point of 45 silver brazing rod
    Anyone have answer for that ?

  • @Pro_Tech01
    @Pro_Tech01 Před 5 lety

    good video, thanks for that

  • @donnierobertson3088
    @donnierobertson3088 Před 5 lety

    Great job

  • @ZBrink11
    @ZBrink11 Před rokem

    When using the 56% flux coated brazing, should you still use Stay Silv before?

  • @herculesskinny2030
    @herculesskinny2030 Před 5 lety

    Why do you fast forward the welding part of the welding am asking because of those of us with ear problem, thanks.

    • @Comm0ut
      @Comm0ut Před 4 měsíci

      Choose a slower replay speed when viewing sections like that.

  • @JDT738126
    @JDT738126 Před rokem

    What about nitrogen?

  • @alexe3186
    @alexe3186 Před 2 lety

    WOW! shocked no wet rag to protect the valve and no purging with OFN??😥

  • @wesleybaughman9653
    @wesleybaughman9653 Před 4 měsíci

    Their wasant any protection on the valve either

  • @palettetools6461
    @palettetools6461 Před 3 lety

    Would anybody run 500 degree F thermal oil through copper with brazed joints with over 1000 degree F melting point solder? Just a temporary set up for about 6 months.

  • @Sctronic209
    @Sctronic209 Před 5 lety

    Did he switch solder from roll to stick?

    • @natepeterson7145
      @natepeterson7145 Před 4 lety

      Yes 45% to 15% silver solder

    • @picklerix6162
      @picklerix6162 Před 3 lety

      I don’t understand why somebody would put 15% on top of 45% silver? It’s completely unnecessary. The 45% silver flows well with the proper flux and I never had a joint leak.

  • @charleschase5341
    @charleschase5341 Před 3 lety

    What would happen if you use 15 percent rod

    • @brandonle4930
      @brandonle4930 Před 3 lety

      Try it and let me know lol. I try it and it doesn’t work with 15 percent. Solder won’t flow into the steel joints

  • @jaredj631
    @jaredj631 Před 5 lety

    Re-upload?

    • @HVACS
      @HVACS  Před 5 lety +1

      Yes the other one got deleted accidentally

    • @hvacslayer2929
      @hvacslayer2929 Před 5 lety +1

      I was going to ask the same thing

  • @nunyabusiness6746
    @nunyabusiness6746 Před 2 lety

    I’ve been a refer tech for over 45 years and I have to say that’s a pretty crappy looking silver solder job, I certainly wouldn’t have used it as an example for a video on the internet. And as for flowing nitrogen, that’s the least of this guys worries if that’s an example of his work!

  • @oldricky
    @oldricky Před 4 lety +3

    Are you kidding?
    #1 DO NOT get flux into the system which you did. #2 You trashed the valve - burnt the seals with no wet rag. to prevent the heat transfer to the seals. #3 No nitrogen means you contaminated the piping with carbon. Epic Fail!

  • @fourfortyroadrunner6701

    STOP calling this "silver solder". Especially nowadays with no-lead low temp silver solder for plumbing, mechanical work, and electronics. this is SLIVER BRAZE