Oxygen-free Copper with High Conductivity

Oxygen-free Copper with High Conductivity System 1

Oxygen-free Copper with High Conductivity

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 500 kg

Supply Capability:: 10000 kg/month

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Type	Cu%(WT)	W%(WT)	RWMA	Density	E-conductivity(Min)		heat conduction	thermal expensivity
Class	(Min)	Hardness	((W/mK))
		(Min)
CuW55	45±2	Balance	10	12.30g/cm3	49%IACS	125HB	~260	~11.7(10-6/K)
CuW60	40±2	Balance		12.75g/cm3	47%IACS	140HB
CuW65	35±2	Balance		3.30g/cm3	44%IACS	155HB
CuW70	30±2	Balance		13.80g/cm3	42%IACS	175HB	~240	~9.7(10-6/K)
CuW75	25±2	Balance	11	14.50g/cm3	38%IACS	195HB	200~230	9.0~9.5 (10-6/K)
CuW80	20±2	Balance	12	15.15g/cm3	34%IACS	220HB	190~210	8.0~8.5 (10-6/K)
CuW85	15±2	Balance		15.90g/cm3	30%IACS	240HB	180~200	7.0~7.5(10-6/K)

Production Equipment

750-1500kg main frequency induction copper melting furnace, 80MN water seal extruder, LG60 high speed two-roll cold pilger mill, straight-line wire-drawing machine, copper tube/pipe straightener, polisher, 84′ copper coil winding machine, straightening-cutting & pancake coiling machine, thermoplastic packaging machine, 1.2T continuous bright annealing furnace.

Testing Devices

spectrum analyzer, atomic absorption analyzer, spectrophotometry, analytical balances, metallurgical microscope, eddy current flaw detector, metal tensile testing machine, eddy conductivity instrument.

Process

refined copper — smelting & casting — extrusion — rolling — drawing — straightening-cutting/forming of pancake coil — bright annealing — packaging — finished goods.

Standards

GB/T 1527-2006     Drawn tube of copper and copper alloys
GB/T 16866-2006   Dimensions and tolerances of copper and copper alloy seamless tubes
GB/T 4423-2007     Copper and copper-alloy cold-drawn rod and bar
GB/T 5231-2001    Wrought copper and copper alloys chemical composition limits and forms of wrought products
GB/T 5585.1-2005   Copper or aluminium and its alloy bus bars for electrical purposes—Part 1:Copper andcopper alloy bus bars
GB/T 17791-2007   Seamless copper tube for air conditioner and refrigeration equipment
GB/T 19850-2005   The seamless round copper tubes for electrical purposes
GB/T 26024-2010   Seamless copper and copper alloys tube for valves on air-conditioning and refrigeration system
ASTM B280-2008   Standard Specification for Seamless Copper Tube for Air Conditioning and Refrigeration Field Service
EN 12735-1：2001 Copper and copper alloys Seamless,round copper tubes for air-conditioning and refrigeration Part 1:Tubes for piping systems
EN 12735-2：2001 Copper and copper alloy – seamless round copper tube/pipe for air-conditioning and refrigeration system – for equipment
JIS H3300-2009       Seamless copper and copper alloy tube/pipe

Q: I have to replace copper piping with a flex line in order for home depot to be able to install a dishwasher. can anyone walk me thru this? thanks, i need to do this by Tuesday.: you should be able to get a breaded dishwasher supply line from home depot to go to it just make sure its the right size thats if your replacing an old one

Q: How do I polish my copper box? It has gone a brown colour and it looks very old but its quite new. The copper is also rusting how do I get this of?: Copper okorder

Q: I have some Wardley Shrimp Pellets and I see copper sulfate in the ingredients...won't this harm my inverts? (Blue lobster, fiddler crabs, dwarf shrimp): i've never seen ill effects in my ghost shrimp, but i stopped feeding this stuff to them a while ago. if i need a sinking pellet, i think hikari's algae pellets are copper-free (but definitely check before you buy). alternatively, just soak some food in water beforehand.

Q: Why would using very old solder to seal joints between copper pipes in a home pose a health risk?: Because older solder contains a high proportion of lead, as high as 60%. If this solder is used to seal pipes that carry water, the water could become contaminated with small amounts of lead and become toxic. Modern solder for copper pipes is lead-free and doesn't run the risk of contaminating water with lead. Usually the package the solder comes in gives it composition in terms of lead, tin, and/or other metals. Hope this helps.

Q: Does anyone have a recomendation to which is better? When I priced the 2 it seemed like copper was 3 times more the price. I need to repipe the crawl space. The house is not for than 30 feet long and wide. Please let me know your suggestions. Thanks: I think I would rater eat copper than PVC. Most new homes have PVC pipes because of the cost of copper has gone up. I bet that copper would win for having less pipe damage with frozen pipes.

Q: Also if anyone has a clue what type of reaction is it?: This Site Might Help You. RE: What chemical reaction takes place when you heat copper pipes? Also if anyone has a clue what type of reaction is it?

Q: I need new plumbing, i keep getting different suggestions on what to use, copper & pvc for a ranch style house, What do you think??: PVC.. by far! First.. let's talk expense. With copper prices today you will be spending HUNDREDS of dollars on pipe compared to less than $75 on PVC. Now, let's talk build out. With copper you will be having soilder and create flare fittings and pressure fittings, etc. All of which require some level of skill Soilder being the most difficult and pressure fittings the easiest. With PVC you will be making each connection the same, a little primer smeared on followed by some glue and then jammed together. PVC is MUCH easier work with. Now, let's talk repairs. Again with copper you will need the appropriate skill level and repairing a small hole becomes a major ordeal. With PVC, you cut out the section with the hole in it, purchase two collars (15 cents or less) and a short section of hose (which you'll probably have left over) and your done in 20 minutes. Now, let's talk durability. Some will argue that copper is more durable but I have serious doubts about that. Some will even suggest steel piping. I would think that the steel would handle extreme temperature swings better.. but unless your in some crazy climate are... this really isn't a factor. So.. there's my two cents worth! Good luck!

Q: I'm going to get highlights next weekend for the first time, and my hairdresser mentioned something about putting copper highlights in my hair. What colour is copper? Don't copper highlights have more of a reddish hue?: reddish gold.

Q: 5/8 straight pipe,hot water.: Dig it up and replace the affected area use a shark bite fittings. If you are not adept with soldering pipes they are simple to use you just push them on the pipe and then your done they work with all types of pipes except galvanized Good luck

Q: Refrigerator freezer room, the middle drawer, the back wall has 1cm copper tube naked leak, what's the matter? Why naked leak?: Normal, now generally use the refrigerator evaporator aluminum coil, on the back wall of the pipeline and the evaporator joint part is copper, so generally have a little bare can see on the outside, the rest of the line is actually a lot of refrigerator also can see, but mostly due to aluminum, and the rest of the evaporator is not much difference, so you don't pay attention.

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