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  • Lenox Brazing

    Do any HVAC techs use Lenox 96/4 or 94/6 solders? It's melting range is around 430 degrees with tensile strength of 15,000psi. Just curious.

    J.C.

  • #2
    Re: Lenox Brazing

    I use harris silvfoss 15% silver
    Buy cheap, buy twice.

    Comment


    • #3
      Re: Lenox Brazing

      What's it's tensile strength, melting point, water potability rating?

      J.C.

      Comment


      • #4
        Re: Lenox Brazing

        If you're talking about for hvac than no. I never use anything but rod.
        sigpic

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        • #5
          Re: Lenox Brazing

          I was looking through a Lenox book I have and they offer this "solder" that has 6% silver, 430 degree melting point, tensile strength of 15,000psi and was wondering it's purpose and uses.

          J.C.

          Comment


          • #6
            Re: Lenox Brazing

            Originally posted by gear junkie View Post
            I use harris silvfoss 15% silver
            ditto
            West Trail Mechanical Ltd
            Service. Commitment. Expertise.

            www.westtrailmechanical.ca

            Comment


            • #7
              Re: Lenox Brazing

              Originally posted by JCsPlumbing View Post
              What's it's tensile strength, melting point, water potability rating?

              J.C.
              Strong than any solder you'll ever see, need oxy acetylene to braze quickly and properly, can use for water. It is very expensive but check around evaporators and you can usually find cutoffs on the floor. Just fold them with vise grips and you'll be set. I throw mine away when their about a 1/4".
              Buy cheap, buy twice.

              Comment


              • #8
                Re: Lenox Brazing

                I weld my scraps together leaving zero waste.

                Andy

                Comment


                • #9
                  Re: Lenox Brazing

                  i always use silflo, never anything that requires flux brecause your already adding acid into the system then.
                  "Do it so you can go to sleep at night."

                  Comment


                  • #10
                    Re: Lenox Brazing

                    Originally posted by gear junkie View Post
                    I use harris silvfoss 15% silver

                    same same

                    Comment


                    • #11
                      Re: Lenox Brazing

                      People, people, people...you braze refrigeration equipment and you solder plumbing equipment. Brazing occurs at temps above 800 degrees, soldering takes place below 800 degrees. For copper to copper use some brand of 15% silver bearing alloy such as Silphos (the phosphorus in the alloy acts as a fluxing agent so this needs no fluxing). For copper to brass or copper to steel use some type of 45% silver bearing alloy (this needs a white water based brazing flux). For soldering I use Sterling brand solder made by Teramet. Has the lowest melting temp of any solder on the market as well as the highest tensile strength. Get on it and get off. Don't cook the flux. Don't cook the pipe or fitting. Grasshopper...you must become one with the flame.

                      Later, Jonesy

                      Comment


                      • #12
                        Re: Lenox Brazing

                        Originally posted by Ruudacguy View Post
                        I weld my scraps together leaving zero waste.

                        Andy
                        Same here

                        Comment


                        • #13
                          Re: Lenox Brazing

                          I have no Idea J.C.
                          What are your thoughts on it today.

                          Comment


                          • #14
                            Re: Lenox Brazing

                            Originally posted by JCsPlumbing View Post
                            I was looking through a Lenox book I have and they offer this "solder" that has 6% silver, 430 degree melting point, tensile strength of 15,000psi and was wondering it's purpose and uses.

                            J.C.
                            This response is coming a bit late, but what you are describing is Harris Sta Brite. It is a 6% silver bearing solder used with regulation plumbers paste flux.
                            it's mostly for refer apps were heat sinking might not be completely reliable.
                            Some ac guys use it but in most places its against code as brazed joints are required.

                            It is NSF approved as well as FDA. It's good for potable water pipes.
                            Just slow, not stupid

                            Comment


                            • #15
                              Re: Lenox Brazing

                              Forgot to mention I called Lenox and grilled the best person I could get too.

                              He basically said that the Tensile Strength rating had very little to do with joint strength so that any of those ratings don't mean much at all.

                              J.C.

                              Comment

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