Seamless Copper Tube
Advantages of Copper Tube. The primary reasons for this are: Copper is economical. The combination of easy handling, forming and joining permits savings in installation time, material and overall costs. Long-term performance and reliability mean fewer callbacks, and that makes copper the ideal, cost-effective tubing material.
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Phosphorus-Deoxidized copper tubes – C12200 – are extensively used in sugar refineries for condensers and evaporators. Deoxidized copper is the standard material for transferring heat from steam to water or air because of their excellent resistance to corrosion by fresh water and their high thermal conductivities.
Copper tubes are easy to install, inexpensive to transport and have long life spans with low maintenance. Because they are compatible with a large range of liquids and are so resistant to a wide variety of environmental conditions, tubes made of copper provide a long term performance that is extremely cost effective over long periods of time. They form piping systems both above and below ground, in freezing temperatures as well as in high heat applications. Fire sprinkler systems, cryogenic plants, air conditioning and refrigeration systems, hospital oxygen systems, gas and steam heating systems and drain/vent systems all use copper tubes as pipes. They also take up less space than other metal pipes.
In order to ensure safety and quality, all copper tubes must adhere to strict ASTM (American Society for Testing and Materials) standards concerning copper purity, design, fittings and liquid/gas compatibility. They are generally formed by the extrusion process, which fabricates seamless tubes with uniform wall thickness and a smooth surface. Solid-profile copper billets in the shape of rods are heated until malleable and then forced through a series of smaller and smaller molds in the shape of a tube until the desired shape has been reached. After extrusion, they are often bent using rollers or mandrels, and attached to each other at the ends by welding.
Most copper tubes have threaded ends, one male and one female, so they can easily attach and detach from one another. The threading is non-permanent but still provides a reliable, air and water tight seal. Sometimes tubes are joined by brazing, a welding technique that uses nonferrous filler material. A benefit of copper tubes is their flammability and explosion resistance. If a fire does start within the tube, it will not travel farther into the pipe system. Copper tubes can have either soft or hard tempers, which is the metal’s overall hardness. This is accomplished by post-fabrication heat treatments.
UNS No. | C12200 – BSI No. C107 – ISO Name Cu-DHP |
Chemical Comp. (%) | Cu 99.9 / P 0.015N ~ 0.040 |
ASTM Spec. | B 75, B 111, B 395 |
ASME Spec. | SB 111, SB 395 |
Applications | Condenser, evaporator & heat exchanger tubes; Air conditioning & refrigeration; Plumbing pipes & steam tubes. |
Temper | H55 Light Drawn / H80 Hard Drawn / O61 Annealed |
Properties * | Metric | English |
Density | 8.94 g/cm³ | 0.323 lb/in³ |
Tensile Strength | 221 ~ 379 MPa | 32 ~ 55 ksi |
Yield Strength | 69 ~ 345 MPa | 10 ~ 50 ksi |
CTE, linear | 17.7 10-6/°C @ 20.0 – 300 °C | 9.8 10-6/°F @ 70.0 – 570 °F |
Specific Heat Capacity | 0.0920 cal/g-°C @ 20ºC | 0.0920 BTU/lb-°F @ 70ºF |
Thermal Conductivity | 339 W/m-K @ 20.0 °C | 196 BTU/ft2/ft/h/°F @ 70.0 °F |
Melting Point | 1083 °C | 1981 °F |
If any questions,you are more than welcome to contact sales@grandsteeltube.com
1. Working with customers from Europe,West Asia,North America,South America, Since 2006 etc
2. Production of seamless copper tubes & pipes since 2005
2. Samples can be delivered within 15 days after confirmation
3. 35 days as the production period and delivery after order confirmation.
4. 60,000 meters of seamless copper tubes in stock.
5. 100 sizes can be offered from OD:30mmxWT:1mm to OD:133mmxWT:5mm
7. Third party inspection like:TUV,BV,SGS,etc accepted
8. Professional team assists your special tube requirements.
If any questions,you are more than welcome to contact sales@grandsteeltube.com
GB | ISO | ASTM | JIS |
TU1/TU2 | Cu-OF | C10200 | C1020 |
T2 | Cu-RTP | C11000 | C1100 |
TP1 | Cu-DLP | C12000 | C1201 |
TP2 | Cu-DHP | C12200 | C1220 |
GB | Composition(%) | |||
Cu | P | O | Other | |
TU1 | 99.97 | 0.002 | less than 0.002 | balance |
TU2 | 99.95 | 0.002 | less than 0.003 | balance |
T2 | 99.9 | - | - | balance |
TP1 | 99.9 | 0.004-0.012 | - | balance |
TP2 | 99.9 | 0.015-0.040 | - | balance |
ASTM | Composition(%) | |||
Cu | P | O | Other | |
C10200 | 99.95 | 0.001-0.005 | - | balance |
C11000 | 99.9 | - | - | balance |
C12000 | 99.9 | 0.004-0.012 | - | balance |
C12200 | 99.9 | 0.015-0.040 | - | balance |
Grade(China) | Grade(Japan) | Temper | External diameter(mm) | Tensile strength(Mpa) | Elongation(%) | |
δ10 | δ5 | |||||
More than | ||||||
T2/T3/TP1/TP2 | C11000/C1201C1220 | Y | more than 100 | 315 | - | - |
more than 100-360 | 295 | - | - | |||
Y2 | less than 100 | 235-345 | - | - | ||
M | 3-360 | 205 | 35 | 40 |