Type of copper.

Hi i saw a type of copper a long time ago on a scrap website i remembered it started with a h i think its hollow and tube like any ideas?

Originally Posted by mike1

Hi i saw a type of copper a long time ago on a scrap website i remembered it started with a h i think its hollow and tube like any ideas?

The only potential one that I can think of would be heliax cable. It's like coax cable, but the center is a hollow tube with a thin layer of copper around it. It's mainly used in specialized RF type applications.

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• Separate Metals. You need to sort and organize your metals according to types and quality.
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I'm not familiar with type H.

I used to use type M & L copper tubing when i was plumbing. It's just the regular copper pipe that you see used in houses. It's straight rigid pipe that comes in 10' & 20' lengths. Type M has a thinner wall and is a little cheaper to buy. Type L has a thicker wall, lasts longer, and costs more.

Type K. is used for for buried service lines that go from the water main to people's homes in a municipal water district. I used to work with that as well. It comes in a 50' coil. It's flexible softer tubing with a fairly thick wall. Most scrappers won't ever see this kind in their day to day.

Another kind is DVW. The DWV stands for drain, waste, and vent. It used to be used for the sewer lines in people's homes a long time ago. Nowadays they almost always use plastic. You've got a bit of a treasure if you find that in your scrapping. A 3" to 6 " diameter chunk of copper drain pipe weighs a lot.

You get the oddball things like medical gas tube. There's also copper eavestrough and downspouts. Those are the rain gutters on a few old houses. You probably won't ever see those ones. They aren't all that common.

All around ... copper isn't used much in buildings anymore cause it's expensive. They've gone to different kinds of plastic pipes now. They're cheaper to buy, easier to work with, and do a better job.