C12200 – DHP copper – Cu-DHP

These tubes are composed of 99.9% copper, offering high thermal conductivity and resistance to corrosion.

Phosphorus-deoxidized copper tubes (C12200) are made from 99.9% pure copper, deoxidized with phosphorus to enhance thermal conductivity and resistance to corrosion. This makes them ideal for heat exchanger applications, particularly where water or steam is involved.

Known for their durability and weldability, these tubes are a top choice in sugar refineries, where they are extensively utilized in condensers and evaporators, and the refrigeration industry, where they play a pivotal role in efficient heat transfer in cooling systems.

These tubes are essential for effectively transferring heat from steam to water or air, making them a preferred choice in industries requiring reliable and durable heat transfer solutions.

Applications

C12200 copper tubes are commonly used in:

  • Industrial heat exchangers, condensers, and evaporators

  • HVAC systems and refrigeration units

  • Water heaters and solar thermal panels

  • Steam-to-water and steam-to-air heat transfer systems

  • General piping and fluid distribution in corrosion-sensitive installations

Key benefits

  • Excellent thermal conductivity: enables fast and efficient heat exchange with minimal energy loss.

  • High corrosion resistance: suitable for use in freshwater and mildly aggressive environments.

  • Ease of fabrication and joining: supports brazing, welding, and soldering for efficient assembly.

  • Proven reliability in industry settings: performs under high-pressure and high-temperature conditions.

  • Long service life: maintains structural and thermal performance over years of use.

  • Standards compliance: meets ASTM B75, B111, B395 and ASME SB111, SB395 specifications.

Technical specifications

UNS no.

C12200 – BSI No. C107 – ISO name Cu-DHP

C12200 – BSI No. C107 – ISO name Cu-DHP
Chemical comp. (%)
Cu 99.9 / P 0.015 ~ 0.040
Cu 99.9 / P 0.015 ~ 0.040
ASTM spec.
B 75, B 111, B 395
B 75, B 111, B 395
ASME spec.
SB 111, SB 395
SB 111, SB 395
Applications
Industrial heat exchangers, condensers, and evaporators; HVAC systems, water heaters, and solar panels.
Industrial heat exchangers, condensers, and evaporators; HVAC systems, water heaters, and solar panels.
Temper
H55 light drawn / H80 hard drawn / O61 annealed

H55 light drawn / H80 hard drawn

Properties and metrics

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 – 300°C
9.8 10-6/°F @ 70 – 570°F

Specific heat capacity

0.0920 cal/g-°C @ 20ºC
0.0920 BTU/lb-°F @ 70ºF

Thermal conductivity

339 W/m-K @ 20°C
196 BTU/ft2/ft/h/°F @ 70°F

Melting point

1083°C
1981°F
* The information provided on this page includes typical values which are only for general reference and information. These values are not intended for exact specification, design or engineering purposes.

Frequently asked questions on copper DHP

What is a DHP copper tube?

DHP copper tube (C12200) is a deoxidized, high-phosphorus copper alloy commonly used in plumbing, HVAC, and heat exchangers. It offers excellent thermal conductivity, corrosion resistance, and weldability.

What is the grade of DHP copper?

The standard grade of DHP copper is C12200 under the UNS designation. It contains 99.9% copper and small amounts of phosphorus to improve its weldability and corrosion resistance.

What is the difference between C11000 and C12200?

C11000 (electrolytic tough pitch copper) has higher conductivity but is less suitable for welding. C12200 (DHP copper) has slightly lower conductivity but better corrosion resistance and is ideal for brazing and welding applications.

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