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Thread: silver solder

  1. Post #1

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    Default silver solder

    Hi all, I tried a search but could not find anything relevant to my question. I have 45 pounds of 6 to 8 percent silver solder. Is there a market for it? Is it something worth keeping around? I would like to sell it since it has been around for many years. I picked it up from an old friend who was a plumber and saved all his little bits.

  2. Post #2

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    Default Re: silver solder

    Doing some maths:

    45 lbs x 12 troy ozs/lb = 540 troy ozs of total solder.

    540 x .06 (6 percent) = 32.4 troy ozs of Silver.

    32.4 ozs x $29.91 (Kitco price of Silver) per oz = $969.08 worth of Silver in your Silver solder (at the least).

    I don't know what it would cost you to get that refined, or how you would go about finding a buyer, but it seems to me that you may want to hang onto it.

    Price of 95/5 Oatley Solder at Amazon is currently at $33.35 per pound.

    45 lb x $33.35/lb = $1500.

    OK - that's enough mathing and thinking on a Sunday morning before coffee. Hopefully someone else can add to this answer.

  3. Post #3

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    Default Re: silver solder

    Find a local plumber and sell it to him..

  4. The Following User Says Thank You to Concours14 For This Useful Post:

    Ryedale (02-14-2011)

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    Default Re: silver solder

    Silver brazing wire is usually 15% silver. Silver solder can be as low as 3%. Call a couple of refineries and ask them if they'll refine it.

    I have no idea who these guys are, but a search for "silver solder refinery" turned up this site that will take silver solder, and I'm sure there are others: http://www.northernrefineries.com/Materials.htm

    If you search the forum, you'll find some recommended refiners that people here use. Call them and ask. If you can recover 20 to 30 ozt of silver from that 45 pounds of solder, it'll be a worthwhile endeavor.

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    Default Re: silver solder

    maybe check with a jeweler...?

    I have a bunch of silver from electrical contactors that i melted off the contacts. 10 oz roughly so far, still have about 300 more contacts to melt off.... A jeweler over here will by it, but not sure how much he'll offer this time. Haven't brought any in for about 10 years. We'll see what he says in a few weeks. Otherwise, it's off to the scrapyard with the 120lbs of brass and 200lbs of copper I've collected recently.......having a warehouse with a bunch of old R22 A/C units is pretty nice, even nicer to have a boss that says "scrap those out and keep what you make from them".

    -L

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    Default Re: silver solder

    I'll try to post a picture if I can. I was told today that what I have is really silver brazing rod for Repairing HVAC units.

  8. 02-14-2011, 06:59 AM


  9. Post #7

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    Default Re: silver solder

    Quote Originally Posted by Silver Buck View Post
    OK - that's enough mathing and thinking on a Sunday morning before coffee. Hopefully someone else can add to this answer.
    You mixed your troys with your avoirdupois.
    It's actually 655.4ozt (total)
    39.3ozt Ag @ 6% Ag content or $1186 (at post)

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    Default Re: silver solder

    Quote Originally Posted by Concours14 View Post
    Find a local plumber and sell it to him..
    Unless you (he) can prove the solder's alloy, it's scrap. Their are strict rules on the solders you can use for potable water.

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    Default Re: silver solder

    Yes I did mix them. Solder is sold by the pound avoirdupois. I purchase it all of the time (Kester's #44, a most excellent 63/37 blend!). It even states on the roll 16 oz. (1 lb).

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    Default Re: silver solder

    I'd call the scrap yards and see what they'd give... dunno if they're equipped for testing it though... Works for brass & copper... They do run through a lot of electronics so they might be equipped...
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