Copper Sink

Hot Products

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Copper Alloy Bar used for Machinery Sectors

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Oxygen-free Copper Bar With High Conductivity

Oxygen-free Copper with High Conductivity

FAQ

what is the difference between the general use of how many years?As for the question, what are the tubes in the fridge? How do we know? How do you distinguish them?How many years can each pipe be used? What's the problem?

The aluminum pipe is more corrosion resistant than the iron tube, and the iron pipe is not corrosion resistant, so I suggest you choose the aluminum pipe!In fact, the best or copper pipe, but now no manufacturers have produced, mainly or cost!

I bought a new home that has a new furnace w/ the old one left here. I‘m trying to find out if it‘s worth scrapping the copper. How much copper is typically in a furnace? How much is it going for per pound? Thank you.

There isn't much copper at all in a furnace. Thermocouples have brass tubes but they don't amount to more than a few onces. The steel from the furnace is worth more than any other scrap metals and it might get you a couple bucks. Put it out with the trash and hope a scrap dealer is scouting the neighborhood.

I know that it is not related to the AC unit or the water heater.

I would crawl under house run down the line and see where it goes hope its not your water line. you may have large water bill.

A 2.98g copper penny has a positive charge of 31.8uC. What fraction of its electrons has it lost? (Assume that natural copper has an atomic mass number of 63.5.)Thanks!

Let's start by finding out how many electrons you would expect to find in a 2.98 gram copper penny, assuming all the atoms were electrically neutral. Copper is element 29 on the periodic table, so each neutral atom bears 29 electrons. 2.98 g x (1 mol Cu / 63.5 g Cu) x (29 mol e- / 1 mol Cu) x (6.022x10^23 e- / 1 mol e-) = 8.20x10^23 e- Now let's figure out how many electrons would have to be lost to give the penny a charge of 31.8 uC. Keep in mind that each electron has a charge of -1.60x10^-19 C, so the penny becomes that amount more positive for each electron lost. 31.8 uC = 31.8x10^-6 C 31.8x10^-6 C x (1 e- / 1.60x10^-19 C) = 1.99x10^14 electrons Now figure out what fraction of a penny's total electrons is represented by 1.99x10^14. 1.99x10^14 e- / 8.20x10^23 = 2.43x10^-10 or 0.000 000 000 243. Put another way, that means the penny only lost 1 out of every 4.12 billion electrons. I hope that helps. Good luck!

can anyone tell me how i can tell the difference between copper and brass? is there some kind of magnet?

I think copper is much more denser and browner than brass.

I have just had a towel radiator put up in the bathroom, it looks stupid with traditional copper pipes. In screwfix I see that they sell chrome pipes, but it is too much hassle to replace the pipes. Is there a paint around or some material to cover it so it is silver/chrome coloured?

You need to prep the copper well to make a covering adhere. There IS some chrome paint in the automotive parts stores, so you could paint them a more chrome color, rather than just silver.

renovating my downstairs bathroom and i put in the new shower valve. it‘s been a month and i‘m getting around to putting in the shower and tub trim kit. i took a look through the hole at the valve and i noticed that green material has accumulated at all four connections where i sweated the copper pipes into the valve. is this a serious problem? what causes it? is it a water leak somehow? do i need to rip it out and have it redone?

I have been plumbing for 18 years and this week is the first time I have attended two leaks in copper pipe due to this type of problem. I am not long back from one just now and the whole length of pipe has green spots all along it and when I cut the pipe out to replace it looking down inside the pipe the corrosion was bad and literally bulging all along the insides. I am seriously considering from now on using only plastic pipes because of this.

why are hvac copper tubing & water copper pipe so different in price if they are interchangable?

Copper pipe comes in different wall thicknesses. Type K copper is the thickest, and most expensive. It is identified by green lettering, on the pipe. It is used, in soft rolls, in underground applications. Next is type L copper, and it is identified by blue lettering, on the pipe. This is the most used of all the grades of copper pipe, and is used in commercial applications. The third type is type M copper, and is identified by red lettering, on the pipe. This type is used primarily in residential applications. The fourth, and thinest copper is type DWV, and is identified by yellow lettering on the pipe. This is the cheapest type of copper pipe, and it is used primarily for Drains, Waste, and Vents, thus, this is where it gets it's name. Although it is thin, it will last longer than cast iron, or galvanized pipes, used for sewer systems. These are the only 4 types of copper available. ACR pipe, or refrigerant copper, is type L copper, but it is sealed at the factory, with a charge of nitrogen, with rubber caps, to prevent moisture from entering the pipe. The reason for this, is to aid the HVAC installer, when he is trying to charge your copper lines with freon. Moisture in an HVAC system is a system killer. The technician hooks up a vacuum pump to the refrigerant lines, to remove all moisture, and air in the lines, prior to introducing freon into the system. Keeping the moisture out of the pipes, is what makes the price difference in this type of copper. This type of copper is used extensively in hospitals, for oxygen, and other gas lines, and for air conditioning systems, both residential, and commercial. There is no reason, why you couldn't use this type of copper for water lines, except for the price. I hope this helps to clarify all the wrong information that is being put out here. Good luck!