COPPER TUBES

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Loading Port:: China Main Port

Payment Terms:: TT OR LC

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Packaging & Delivery

Packaging Detail:

Packing: Wooden pallet packing strong seaworthy, Coils will have to be collected into a pile to build round 3+3 or 7 coils carried on one fumigated wooden pallet. Cardboard flange to be inserted between each coil and to be placed onto the top of the highest one.Shrinking film wrapping the parcel, each parcel composed of 3+3 or 7 coils, will have to be characterized by a label including the dimension, gross weight, tare and net weight, packing number, production date.

Delivery Detail:

within 15 days after we received deposite or L/C

Specifications

1) high efficiency, energy saving healthy
2) the inside surface area increases 70~100% than plain copper tube

We have passed ISO9001, ISO14001, UPC,SGS and TUV etc.,these promise that the products we produced are always of the best quality

1) Alloy no.: C12200, Temper: soft drawn

2) Coil Wt.: 100kg ~ 500 kg

Specifications	Unit weight	O.D	I.D	Bottom Wall Thickness TW	Fin Groove Depth HF	TotalWallThickness	Apex Angle	Helix Angle	Number of Tooth
Φ5.00×0.20+0.15-18°	33	5.00	4.30	0.2	0.15	0.35	40	18	40
Φ7.00×0.25+0.10-15°	52	7.00	6.30	0.25	0.10	0.35	40	15	65
Φ7.00×0.25+0.18-18°	57	7.00	6.14	0.25	0.18	0.43	40	18	50
Φ7.00×0.25+0.22-16°	58	7.00	6.06	0.25	0.22	0.47	22	16	54
Φ7.00×0.27+0.15-18°	60	7.00	6.16	0.27	0.15	0.42	53	18	60
Φ7.94×0.25+0.18-18°	65	7.94	7.08	0.25	0.18	0.43	40	18	50
Φ7.94×0.25+0.20-18°	66	7.94	7.04	0.25	0.20	0.45	40	18	50
Φ7.94×0.26+0.17-18°	66	7.94	7.08	0.26	0.17	0.43	40	18	50
Φ7.94×0.28+0.20-18°	72	7.94	6.98	0.28	0.20	0.48	40	18	50
Φ7.94×0.30+0.20-18°	76	7.94	6.94	0.3	0.20	0.50	40	18	50
Φ9.52×0.27+0.16-18°	82	9.52	8.66	0.27	0.16	0.43	30	18	70
Φ9.52×0.28+0.12-15°	80	9.52	8.72	0.28	0.12	0.40	53	15	65
Φ9.52×0.28+0.15-18°	83	9.52	8.66	0.28	0.15	0.43	53	18	60
Φ9.52×0.28+0.15-25°	88	9.52	8.66	0.28	0.15	0.43	90	25	65
Φ9.52×0.28+0.20-18°	85	9.52	8.56	0.28	0.20	0.48	25	18	55
Φ9.52×0.28+0.20-18°	88	9.52	8.56	0.28	0.20	0.48	40	18	60
Φ9.52×0.30+0.20-18°	90	9.52	8.52	0.3	0.20	0.50	30	18	60
Φ9.52×0.30+0.20-18°	94	9.52	8.52	0.3	0.20	0.50	53	18	60
Φ9.52×0.34+0.15-25°	104	9.52	8.54	0.34	0.15	0.49	90	25	65
Φ9.52×0.40+0.25-18°	123	9.52	8.22	0.4	0.25	0.65	40	18	60
Φ12.00×0.36+0.25-18°	140	12.00	10.78	0.36	0.25	0.61	40	18	70
Φ12.70×0.35+0.25-18°	155	12.70	11.50	0.35	0.25	0.60	53	18	70
Φ12.70×0.40+0.25-18°	170	12.70	11.40	0.4	0.25	0.65	53	18	70
Φ12.70×0.50+0.25-18°	201	12.70	11.20	0.5	0.25	0.75	53	18	75
Φ12.75×0.36+0.21/0.25-20°	150	12.75	11.53	0.36	0.25	0.61	48	20	70
Remark:These are common sizes which the company is making,and unusaal sizes with special requirement can be tailor-made against order.

the inside surface area increases 70~100% than that of the same specification of plain copper tube, the heat transfer coefficient is about 1.8~2.0 times of that of same specification of plain tube.

Q:Why is copper less recycled than gold?: This Site Might Help You. RE: 4 wheel drive and 2 wheel drive? someone PLEASE explain to me the difference. I drive up a hill to get into my parking lot which one should i get? what are the downfalls of 2 wheel drive on a acura tsx? will i get into a wreck if its wet outside? I'm really clueless here someone help?

Q:Is flexible copper okay for connecting gas line from black pipe to water heater?: First things first. That flexline you are talking about is not copper but a brass aloy. The safest way to connect the appliance to the houseline. Be sure to use the correct adaptors though as they will not connect to a plack pipe with them. In the old days sometimes the 5/8 type would be connected to the black pipe but that wasn't correct as the threads wern't the same and ther was no flare. Do not use any coppen with gas as the copper reacts to the mercaptian sulfate in the gas (thats the odorizer) and turns it into copper sulfate that eats away at the copper line. Also use any new type one piece flexline some of the older flexlines had a but weld at the ends the soldier at the weld will breakdown after time. They have not sold that type in over twenty years though

Q:I found some native copper and I plan to collect more. How can I cast this copper? I was thinking like a keychain....pendant? What should i make the mold out of?what do I put the copper in, to put it in a fire to melt it? thanks: How okorder

Q:scrap copper prices: Scrap copper prices vary on a daily basis and based upon grade of the scrap copper. Some general scrap copper pricing is as follows: #1 Bare Bright Wire $3.00 /lb. #1 Copper Tubing/Flashing $2.65 /lb. #2 Copper Tubing/Wire (Tin Coat) $2.45 /lb. found this at

Q:My internet provider claims that the data transmission from internet traffic, puts such a strain on the copper wires, that all their clients have to pay a fee for &quot;copper wear-down&quot;. I don't mind the fee (it's very small), but i'm curious about, how the data signal affects the copper wire?The copper wire system in the area is all underground.: Sounds like a load of hooey. What you're actually paying is a maintenance charge if they have to dig up the wire and replace it for any reason.

Q:I read all the articals, and it seems to make sense. I also clicked on a banner ad, and went to the copper mint website.Do you think that investing in copper bullion is a wise idea? Please let me know.Thanks.: no I don't this this is wise... pper is cheap ...about $3.00/lb...let us say you want to invest $3000 into copper....that is 1000lbs of the stuff....where are you going to store your investment... bably in the garage...not a safety deposit box....$3000 worth of gold is less than 2 oz...you can easily store this in a bank safety deposit box When you come to sell it..

Q:A 10-g piece of copper is to be formed into a wire of radius 1.0 mm at a temperature of 50 degrees C. What is the resistance of this wire? (Hint: you will need to look up the density of copper.) If a potential of 12 V is put across the wire, what is the drift velocity? (Assume one electron per copper atom): I’ll provide you with a “road map” to answer this interesting question. Variables: R = resistance ρ = resistivity = 1.68E-8 (copper at 20?) L = length A = area D = density = 8.96 g/cm^3 = 8960 kg/m^3 V = volume R = radius of wire = 0.001 m m = mass wire = 0.010 kg ?T = temperature change (?C) α = temperature co-efficient = 0.0068 (copper) I = current (A) n = electron density = 6E28 m-3 (for copper) q = charge on electron = 1.6E-19 C Equations needed: R = ρL / A D = m / V ?R / R? = α?T I = nAvq I = V / R The length of 10 g of copper of radius 1.0 mm is calculated by: D = m / V = m / (π r? L) L = m / D π r? = (number crunching !) The resistance of 0.357 m of wire is determined by: R = ρL / A = (number crunching !) Adjusting for new temperature: ?R / R? = α?T ?R = α?T x R? = (number crunching !) Hence: R = (think & number crunching !) Drift velocity formula: I = nAvq I = V / R V / R = nAvq v = V / (nAqR) = (number crunching !) This should help. Good luck

Q:I bought an antique copper hip flask from Portebello market (London), when I washed it out with water loads of grime came out. Is it safe to drink hard liquor from it or will I get some sort of copper poisining? I've washed it out with boiling water and fairy antibacterial washing up liquid, what would you recomend I do? thanks in advance :D xx: Is the flask lined with another metal other than copper, IF NOT, don't use it as you could get cooper poisoning...yes I am serious....If it is lined then use a vinegar,soap &water solution and let it set for a few hours to a day, then rinse it out and clean well, repeat if necessary,if possible use a bottle brush to help get inside.... Be CAREFUL if the flask is not lined, adding liquor (whiskey)is similar to adding bleach to it and drinking it as the alcohol will have an adverse affect on the copper. IF needed contact a copper smith. ntact PAUL REVERE COOKWARE as they use a lot of copper in their products for advice.

Q:I burned copper (wool) [ 49.34 g] for a certain amount of time, and its color changed; (copper oxide formed)but the mass is still 49.34 g!! Why?: CuO is not copper burnt with oxygen. It's a chemical reaction in which pure copper is oxidized: 2Cu + O2 --> 2CuO Assuming 1 gram of copper is allowed to oxidize... more than 1 gram of CuO will be produced if you do the stoichiometry calculations.

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