GB: 2$ copper modules ALL SIZES CLOSED

Re: GB: 2$ copper modules ALL SIZES

I hate to do this, but I literally just because available. I've been up all night until 10am, then slept til 3, and talked to my mom for a bit. Is there any way I could participate? Like get 3x 3.8mm and 3x 9mm the 9mm in copper, and the 3.8 in aluminum, both with back threads? I'm so sorry for doing this to you...

Re: GB: 2$ copper modules ALL SIZES

Not sure how you're working the extra modules. I do not want an extra 9mm module if you're adding 33% to everybodies order. I'd prefer two extra 3.8 and one extra 5.6.

Re: GB: 2$ copper modules ALL SIZES

bloompyle said:

I hate to do this, but I literally just because available. I've been up all night until 10am, then slept til 3, and talked to my mom for a bit. Is there any way I could participate? Like get 3x 3.8mm and 3x 9mm the 9mm in copper, and the 3.8 in aluminum, both with back threads? I'm so sorry for doing this to you...

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Ill be sending you a PM shortly

Dr_Evil said:

Not sure how you're working the extra modules. I do not want an extra 9mm module if you're adding 33% to everybodies order. I'd prefer two extra 3.8 and one extra 5.6.

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I was going to proportionally add them but if youd like just leave a PP note saying that when you pay along with your username
EDIT: got your payment with the note

Re: GB: 2$ copper modules ALL SIZES

PP sent. Thanks for finding this place. I was about to pay $12 each at Aixiz. This takes of some of the items I need for a project I want to complete before SELEM.

Re: GB: 2$ copper modules ALL SIZES

Dr_Evil said:

PP sent. Thanks for finding this place. I was about to pay $12 each at Aixiz. This takes of some of the items I need for a project I want to complete before SELEM.

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No problem its my pleasure :beer:

I'm noticing that the spreadsheet only recorded the $96 that I paid for the modules, not the additional $8 I paid for Xpresspost shipping.

rhd said:

I'm noticing that the spreadsheet only recorded the $96 that I paid for the modules, not the additional $8 I paid for Xpresspost shipping.

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Im keeping track of shipping on a printed out version of the spreadsheet Don't worry about it ill add it to the online one anyway

Damn. I thought this was going until 8 edt tonight. Guess that's what I get for waiting until the last minute.

edit: misread the time. I'm an idiot. Lesson learned.

AnthoT could you please PM me a total for my modules? Im working and this is the only message I have time to send. Just PM me a total and I'll send it tonight when I get home to a real computer and have time.

jakeGT said:

AnthoT could you please PM me a total for my modules? Im working and this is the only message I have time to send. Just PM me a total and I'll send it tonight when I get home to a real computer and have time.

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Ok I've sent you your total via PM

And all orders will be placed tonight between 10PM-11PM. One package is going to DTR and one to me all US orders should contact DTR for shipping. :beer:

AnthoT, what should I do? You know my situation at the moment...

Le Quack said:

AnthoT, what should I do? You know my situation at the moment...

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We've discussed this via PM That still stands

Dumb question, and I apologize for not reading all 236 posts to see if this has been asked, but do we know WHAT copper we are getting.

C101 or something very pure I hope? There are copper alloys out there that are made for strength that have very poor thermal conductivity compared to pure copper.

What made me think to ask was that you said it "looked like gold" when it was polished and I have a Beryllium Copper heat sink that I haven't used because the thermal conductivity was so poor after I researched it.

Le Quack said:

AnthoT, what should I do? You know my situation at the moment...

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I'm going to stick my nose in this and make an educated guess. Le Quack, if you missed out on this - I am sure that the number of modules ordered in this GB will result in plenty of people that will sell you some at a reasonable price. Worst case scenario I will sell you a few for cost plus shipping.

If that isn't the problem then please ignore my bungling.

tsteele93 said:

Dumb question, and I apologize for not reading all 236 posts to see if this has been asked, but do we know WHAT copper we are getting.

C101 or something very pure I hope? There are copper alloys out there that are made for strength that have very poor thermal conductivity compared to pure copper.

What made me think to ask was that you said it "looked like gold" when it was polished and I have a Beryllium Copper heat sink that I haven't used because the thermal conductivity was so poor after I researched it.

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All the manufacturer told me about the copper was that is was "pure copper" I'm actually about to order and get more details about that. Apparently when copper is polished it looks like gold. It's still copper just polished

tsteele93 said:

Dumb question, and I apologize for not reading all 236 posts to see if this has been asked, but do we know WHAT copper we are getting.

C101 or something very pure I hope? There are copper alloys out there that are made for strength that have very poor thermal conductivity compared to pure copper.

What made me think to ask was that you said it "looked like gold" when it was polished and I have a Beryllium Copper heat sink that I haven't used because the thermal conductivity was so poor after I researched it.

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Yeah I've asked this on Page 6, but I don't think it was answered yet. When manufacturers say "copper" and not "x copper" then it's usually alloyed in very low percentages.

I think more importantly is to ask the manufacturer the thermal conductivity of the copper being used, which would say much more than simply what kind of copper alloy it is. The aim here is to hit around 355 W/m-k, which is over 2x the thermal conductivity of aluminum and over 3x that of brass.

AnthoT said:

All the manufacturer told me about the copper was that is was "pure copper" I'm actually about to order and get more details about that. Apparently when copper is polished it looks like gold. It's still copper just polished

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Cool,

Because the BeCu heat sink that I have looks very gold/brass like and interestingly, it doesn't appear to be oxidizing like typical copper. But the thermal conductivity (around 150=200) is worse than pure aluminum. So it would be better to just use Aluminum at that point.

Just make sure they are using a good thermal conductivity grade and not a strength grade copper.

http://www.keytometals.com/page.aspx?ID=CopperGrades&LN=EN

Copper grades are divided into six families: coppers, dilute copper alloys, brasses, bronzes, copper-nickel alloys, and nickel-silver alloys.

The first family, the coppers, is essentially commercially pure copper, which normally is soft and ductile and contains less than about 0.7% total impurities. Commercially pure copper grades are designated by UNS numbers C10100 to C13000. The dilute copper grades contain small amounts of various alloying elements that modify one or more of the basic properties of copper.

Electrolytic tough pitch copper C11000 is made from cathode copper, that is, copper that has been refined electrolytically. C11000 is the most common of all the electrical copper grades. It has high electrical conductivity, in excess of 100% IACS. It has the same oxygen content as C 12500, but differs in sulfur content and in over-all purity. C11000 has less than 50 ppm total metallic impurities, including sulfur.

Oxygen-free copper grades C10100 and C10200 are made by induction melting prime-quality cathode copper under nonoxidizing conditions produced by a granulated graphite bath covering and a protective reducing atmosphere that is low in hydrogen.

Copper-nickel alloys (copper-nickels, cupro-nickels) are copper grades that contain 1.5-45% of nickel (Ni) as the major alloying element. According to the Unified Numbering System (UNS), wrought copper-nickel alloys are designated with the numbers from UNS C70000 through UNS C73499. These alloys are used for manufacturing coins, sea water equipment, evaporators, heat exchanger tubes, automotive hydraulic and cooling systems.

Nickel silver does not contain silver and may be regarded as a brass to which nickel has been added. Nickel contents vary considerably but usually lie between 9 and 30%, depending on its application. The copper content tends to remain the same, approx. 60-65% and the zinc content is reduced as the nickel content is increased. The higher the nickel content the whiter is the color and, although more corrosion resistant, the ductility is reduced.

Nickel silver has been widely used for numerous applications due to its corrosion resistance, color and cold forming qualities. Items made from nickel silver range through car radiators, ball pens, musical instrument keys, transistor casings, electrical contacts, architectural ironmongery, cutlery, etc. According to the UNS, wrought nickel nilvers are designated with the numbers from C73500 through C79999.