Copper disks/slugs

March 7, 2007 7:58 AM

I'm looking for a supplier of copper slugs or disks, 7/8" in diameter, 3/16" thick.

Does anyone know of a company in Canada or the U.S. that ships to Canada. I've been cutting them from round stock but that is time consuming and wasteful.

Alternatively, is there another name for small round metal disks that I should be googling?

posted by glip to Grab Bag (6 answers total)

I've sometimes seen thin disks sold "pucks" but I'm not finding any copper. I looked at Strem Chemical (who is usually good for this sort of stuff).

Can these people help you out?
posted by janell at 8:31 AM on March 7, 2007

Stamped or punched wafers like this?
posted by Fins at 8:34 AM on March 7, 2007

Here's the listings for copper discs from Thomas Register.

Here's listings for copper from the Canadian Trade Index.
posted by hydrophonic at 8:39 AM on March 7, 2007

Have you looked through the McMaster-Carr catalog?
posted by saladin at 8:41 AM on March 7, 2007

Best answer: You want to find a punching company, and have them do a full sheet for you all at once, I think. They can arrange them in a hexagonal close packing arrangement and get near-full utilization of the sheet. Each one ought to only cost you a few cents, in my opinion as a machinist. But making them out of bar stock isn't that bad, really- you just need a thinner cutoff tool so you're not wasting as much material. A cnc shop should be able to only waste .03-.05" per disc.
posted by wzcx at 9:57 AM on March 7, 2007

McMaster only has 12" long rods at 7/8" diameter.

Small Parts only has 3" long rods at 7/8". They also have brass discs, but not at your size.
posted by mbd1mbd1 at 10:13 AM on March 7, 2007