How do I know if my CU is 100% or even 90% cu?

Michael · 11-14-2002, 06:31 PM

I just started making my own blocks this past week, and I was wondering how can I tell if the copper I am working with is 100% copper, or even 90% copper?

My dad who owns his own machine shop told me that most of the time you will run into copper that is 30% bronze which is not what I want.

Is there any way of just looking at the blocks that I have that could tell if I do in fact have what I paid for.

My dad who built my first block to kind of show me what to do and not to do said that the material machined like copper but he didnt say if it was in fact a bronze alloy.

edit : it would be good to add that I ordered cu 110 ... which should be 99% cu correct?

I however am a noob to machining and metals and my dad refuses to assist me because Ive only shown interest in his business when it has something to do with cooling

LiquidRulez · 11-14-2002, 07:49 PM

Quote:

Originally posted by Michael

it would be good to add that I ordered cu 110 ... which should be 99% cu correct?

Correct.........99.4% to be exact.

Albigger · 11-14-2002, 08:03 PM

I'm planning on ordering Cu 110 from onlinemetals.com

but on this page HERE

they say Cu 99.9% and O 0.04% = not adding up to 100%??

so how pure is it? 99.4% like Liq. Rulez says?

In any case, this stuff is good to make blocks out of? And can be milled and such?

utabintarbo · 11-14-2002, 08:18 PM

Quote:

Originally posted by Albigger
they say Cu 99.9% and O 0.04% = not adding up to 100%??

so how pure is it? 99.4% like Liq. Rulez says?

In any case, this stuff is good to make blocks out of? And can be milled and such?

Yes. And yes.

Albigger · 11-14-2002, 08:21 PM

Quote:

Originally posted by utabintarbo
Yes. And yes.

cool, thanks.

11-14-2002, 06:31 PM	#1
Michael Cooling Neophyte Join Date: Nov 2002 Location: Long Beach Posts: 9	How do I know if my CU is 100% or even 90% cu? I just started making my own blocks this past week, and I was wondering how can I tell if the copper I am working with is 100% copper, or even 90% copper? My dad who owns his own machine shop told me that most of the time you will run into copper that is 30% bronze which is not what I want. Is there any way of just looking at the blocks that I have that could tell if I do in fact have what I paid for. My dad who built my first block to kind of show me what to do and not to do said that the material machined like copper but he didnt say if it was in fact a bronze alloy. edit : it would be good to add that I ordered cu 110 ... which should be 99% cu correct? I however am a noob to machining and metals and my dad refuses to assist me because Ive only shown interest in his business when it has something to do with cooling Last edited by Michael; 11-14-2002 at 06:48 PM.

11-14-2002, 08:03 PM	#3
Albigger Cooling Savant Join Date: Sep 2002 Location: ohio Posts: 140	I'm planning on ordering Cu 110 from onlinemetals.com but on this page HERE they say Cu 99.9% and O 0.04% = not adding up to 100%?? so how pure is it? 99.4% like Liq. Rulez says? In any case, this stuff is good to make blocks out of? And can be milled and such?

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