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 am looking to buy a home for a great price - however it needs piping - if I can low-ball the purchase price -I am willing to use the difference to put in the piping and cosmetic work: It is rare that copper piping needs to be replaced in it's entirety. Your question is impossible to answer without more info.Why does it need to be replaced? How many fixtures are in the home? Crawl, slab, or basement? A total house re-pipe can cost from $4000.00 to $12,000.00 on homes in my area(northern Il.) Again, more details would be helpful.

Q:What is the process of extracting copper from malachite ore? I need specific information to do my experiment. What acid and concentration to dissolve the ore for the leaching process. What to use to carry out the electrowinning proccess. Thanks in advanced.: For the best answers, search on this site okorder

Q:I like all the compounds of Copper (Except the really poisonus ones lol) but I was wandering if anyone knew how to produce some of these compounds. If it is reacting the acid with the metal can someone tell me how to get rid of the remaing acid while producing the compound. (Please no safety warnings): The place to start is reaction of copper metal with nitric acid. This produces copper(II) nitrate. Crystallize the finished product from water. This gets rid of excess HNO3. Add Na2CO3 to a water solution to produce basic copper carbonate [CuCO3*Cu(OH)2]. Add various acids to this to make cupric acetate, copper sulfate, etc. Finally, add concentrated ammonia to a CuSO4 solution and evaporate and crystallize an electric blue preparation of Cu(NH3)4++SO4=.

Q:My concern is will there be any health issues with copper in contact with the meat?: Copper pipe is an alloy - not pure copper. I would not recommend it. Copper is also too soft - it may bend in the heat of the barbecue, especially if weighted down with a heavy piece of meat.

Q:a 99% pure copper wire has resistance of 0.1 ohm at 0.1 K and 20 ohm at 300K. for 100% pure copper wire of same size . what is the estimated resistance at 0.1K and 300K.a. ~0 and 19.9b. ~0 and 20.1c. 0.1 and 19.9d. 0.1 and 20.1i dont get this one, please help me..: The temperature coefficient of 100 % pure copper is required to estimate the resistances at these temperatures.

Q:I just got home and found I had no water. After checking the basement, I found the large copper pipe coming from the water meter had a large bulge in it about 6 feet from the meter. I heated it with a hair dryer and it started gushing water. I immediately shut the main valve off. I called two plumbing companies, but none can get here until Monday. I‘m pretty handy and tried duct tape, but it still leaks a lot. The local hardware store is also closed. Any idea‘s until the plumbers get here? I would really like to use the toilet and take a shower. Thank You. The pipe is about the same diameter as a quarter.: Wow that is a fix. but it is temporary. Okay, do you have any extra pipe around the house? Did the copper pipe completely bust or does it just have a small crack? Turn off the main valve, if you have any super glue try that then put the duck tape around it. If all else fails you will have to fill up some containers from the main pipe and fill up the toilet tank or bath as you need it. You will make it until monday for sure. It'll just be difficult. ( Remember to leave your water running at a drizzle in cold weather, it will keep your pipes from freezing.

Q:Am wanting to wrap my wood burner with 3/8 soft copper pipe to heat water going to an heat exchanger in my furnace. Will the copper withstand the heat?: Most alarms work well enough, but my son came up with an interesting twist. He put the siren inside the car, hidden enough that a thief could not spend the time to find it and rip out the wires. When the alarm goes off the inside of the car is filled with siren noise way beyond the threshold of pain and it is hard to loot or steal a car with both hands clamped over the ears. Coupled with an immobilizer it should be pretty effective. He also put a hidden kill switch on the electric fuel pump of his car. The car can be towed away but not driven away. A cheaper but less convenient way to do the same is to remove a critical fuse, like the one for the ECU (fuse #32). The car won't start and it would take a thief too long to figure out why.

Q:when i push it down it stops leaking and when i let go. it springs up and starts leaking. does anyone know what that connector thing is??ty can i replace this with something else to stop the leak? i have no idea what it is called.: Sounds like maybe it is a compression fitting. Is it a copper pipe that looks like it goes though a nut? If so, try tightening the nut with a wrench. Do not overtighten, just give it a little turn (clockwise), hopefully that will stop the leak.

Q:Is it safe to take a bath with copper corroded pipes?: extremely tough subject. seek on to yahoo. that can help!

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