Quarter Pound Copper Bar - Troy or AV?
Posted:
Tue Sep 06, 2011 1:18 pmby Kurr
I am weighing some copper to cast quarter pound ingots for resale.
31.10 * 3 = 93.30
or
28.34 * 4 = 113.36
I know copper is normaly Av. but that is because spot is for tons. Copper is in the same family on the periodic as Au and Ag, and this is for bullion, less than a kilo.
What do you say?
Re: Quarter Pound Copper Bar - Troy or AV?
Posted:
Tue Sep 06, 2011 1:29 pmby natsb88
I have found that AVDP and troy are both widely used for 1 oz bars, but that more people seem to prefer AVDP for anything larger (myself included).
Re: Quarter Pound Copper Bar - Troy or AV?
Posted:
Tue Sep 06, 2011 1:41 pmby Kurr
Gotcha!
I'll go with the 113 gram base then,
Many thanks!
Re: Quarter Pound Copper Bar - Troy or AV?
Posted:
Tue Sep 06, 2011 2:41 pmby OtusLotus
It shouldn't really matter, as long as you mark it.
And, there are no quarter pounders in France... It is the Burger Royale!
Re: Quarter Pound Copper Bar - Troy or AV?
Posted:
Tue Sep 06, 2011 3:41 pmby 68Camaro
OtusLotus wrote:It shouldn't really matter, as long as you mark it.
Ditto that. "As long as you mark it" Better yet, put the gram weight on it as well.
Re: Quarter Pound Copper Bar - Troy or AV?
Posted:
Tue Sep 06, 2011 5:18 pmby NotABigDeal
OtusLotus wrote:It shouldn't really matter, as long as you mark it.
And, there are no quarter pounders in France... It is the Burger Royale!
Pulp Fiction. Great movie....
Kurr, I'm in with the AV crowd as well.
Deal
Re: Quarter Pound Copper Bar - Troy or AV?
Posted:
Tue Sep 06, 2011 7:20 pmby Thogey
OtusLotus wrote:It shouldn't really matter, as long as you mark it.
And, there are no quarter pounders in France... It is the Burger Royale!
Yes that's great.
But what do they call a Whopper?
Re: Quarter Pound Copper Bar - Troy or AV?
Posted:
Tue Sep 06, 2011 7:51 pmby Diggin4copper
I dont mind which way you go, but I want one to go with my gold and silver pieces..
Re: Quarter Pound Copper Bar - Troy or AV?
Posted:
Wed Sep 07, 2011 9:27 amby Mossy
Kurr wrote: I know copper is normaly Av. but that is because spot is for tons.
What kind of ton, anyhow? There's about 4 kinds, that I know of.
Re: Quarter Pound Copper Bar - Troy or AV?
Posted:
Wed Sep 07, 2011 9:53 amby Kurr
I'll let you know when I get ready to sell my first one ton lot, lol.
I got 6 barsdone playin around yesterday, learning the torch, learning the metal, etc. Casts came out well formed, most slightly under my goal, due to, well... it aint easy! I think my other style melting dishes would be easier to pour. I have no "pour spout" in this crucible, and pouring 2200 degree metal into a 4mm slit while maintaning heat and torch controll, I missed some.
At one point I thought I was going good, then I watched shiny liquid metal about readyto pour go to "slushy" liquid metal, then a hard something that looked like black styrofoam, and wouldn't budge, move, or melt. I kinda freaked out, thinking I ruined my dish. Added more of my super secret flux recipie, and did get it back down to pour half out in mold, then dissolved the rest out, maybe dissolved aint the right word. I used chemicals and fine carefully controlled heat to precipitate out the copper, poured the rest then liquified the solidified glass flux in the cop and poured into water, then reconditioned the cup, and filed a good lesson into the memory bank.
Now 6 bars from yesterday, went into the pickle last night to soak, and most look pretty good this morning. Just bought a new dremel, as my old one died after 5 years of good service. I'll get the wire wheels and engraving tools on em today and see how they come out.
Since I do not have a plain "A&M" logo stamp, these will probably be generic stamped.
Did I mention copper is the hottest, dirtiest, meanest metal I have played with yet? And you have to de-gas it!
More to follow as I get it done.
Re: Quarter Pound Copper Bar - Troy or AV?
Posted:
Sat Sep 10, 2011 1:57 pmby Kurr
What do you think? They all fell short a bit except one from the goal wieght of 114 grams but are still cool to me.
Re: Quarter Pound Copper Bar - Troy or AV?
Posted:
Sat Sep 10, 2011 5:50 pmby 68Camaro
Mossy wrote:Kurr wrote: I know copper is normaly Av. but that is because spot is for tons.
What kind of ton, anyhow? There's about 4 kinds, that I know of.
Unless they quote another number, its metric tons.
Re: Quarter Pound Copper Bar - Troy or AV?
Posted:
Sat Sep 10, 2011 5:52 pmby 68Camaro
Kurr wrote:I'll let you know when I get ready to sell my first one ton lot, lol.
...
More to follow as I get it done.
Wow, that's a lot of work!
Re: Quarter Pound Copper Bar - Troy or AV?
Posted:
Sat Sep 10, 2011 5:54 pmby fasteddy
Well I have to say the gold & silver are prettier..with that said, sell me the 110 gram bar, along with either more gold and/or silver grams to help with frt. If your not ready to sell, I understand.
Re: Quarter Pound Copper Bar - Troy or AV?
Posted:
Mon Sep 12, 2011 6:39 pmby Kurr
No, they aint as pretty at all. After I got a run of about 11 lbs started I learned a cruel fact.
I think I spent about 15-20 dollars in gas to melt 8-10 dollars worth of metal. I can do it, and it looks ok, put will not be feasible at this time for production runs with my current setup. Maybe I can roll it out into sheet and use it for jewelry manufature till I can get a different set of molds made up and rebuild my furnace to a different configuration.
Live and lean. Tuition. Gotta pay these dues.