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Zhejiang Jingliang Copper-Tube Products Co., Ltd

Wholesale Phosphorus Deoxidized Cu

Phosphorus Deoxidized Cu

-- Steady & Reliable Manufacturer --

The Global Standard for Industrial and HVAC Tubing

Phosphorus Deoxidized Copper, commonly known as DHP (Designated High Phosphorus) or C12200, is the "Workhorse Alloy" of the modern plumbing and HVAC world. At Zhejiang Jingliang, we produce C12200 by adding a small, controlled amount of phosphorus (0.015% to 0.040%) to the molten copper. This phosphorus acts as a "Scavenger," effectively removing all oxygen from the metal. While this slightly reduces the electrical conductivity, it drastically improves the "Weldability" and "Ductility" of the material. This makes C12200 the only choice for seamless tubes that must be bent, flared, or swaged on a construction site. It is perfectly suited for "Phase-Change" environments where high-pressure refrigerants or boiling water are constantly flowing through the system.

Our C12200 DHP copper is manufactured through "Master-Alloy" infusion during casting, ensuring that the phosphorus is perfectly distributed throughout the tube wall. This results in a material that is exceptionally resistant to "Pitting Corrosion," even in areas with "Aggressive Water" or high humidity. At Jingliang, we follow the ASTM B88 and B280 standards for all our DHP tubing, ensuring that every meter has the consistent wall thickness and internal cleanliness required for "Leak-Free" installations. Whether you are installing a residential potable water system, a commercial chiller, or a gas line, our Phosphorus Deoxidized Copper provides the "Reliable Foundation" that professional engineers and contractors have trusted for over a century.

DHP Mechanical & Corrosion Specs

PropertyC12200 (DHP) Specification
Copper Content≥ 99.90%
Phosphorus Content0.015% - 0.040%
Electrical Conductivity≥ 80% IACS
WeldabilityExcellent (Immune to embrittlement)
Tensile Strength210 - 300 MPa (Temper dependent)
Yield Strength≥ 65 MPa
Thermal Conductivity339 W/(m·K)
StandardASTM B88 / B280 / EN 1057
Grain Size0.015mm - 0.040mm (Precise)
Internal FinishBright & Smooth (R-Grade)

HVAC Coils, Potable Water, and Industrial Heat Exchangers

C12200 DHP copper is the "Universal Material" for "Air Conditioning and Refrigeration (ACR)" systems, used for evaporator and condenser coils. It is the global standard for "Residential Potable Water Systems," including hot and cold water distribution. In "Industrial Heat Exchangers," it is used for "Finned Tubes" and shell-and-tube units. "Gas Distribution" networks rely on DHP copper for its leak-proof reliability. It is essential in "Solar Thermal Collectors" due to its ability to be easily welded to absorber plates. In "Automotive Engineering," it is used for oil coolers and heater cores. It is also found in "Fire Sprinkler Systems" and "Medical Gas Piping" in hospitals. Additionally, it is used for "Brewing and Distilling Equipment" where its corrosion resistance and ease of fabrication are key advantages.

Superior Formability and Leak-Proof Reliability

The primary advantage is "Excellent Weldability and Brazability"—the absence of oxygen means you can join these pipes using any high-heat method without the risk of "Hydrogen Embrittlement." Our DHP copper offers "Outstanding Cold-Forming Properties," allowing it to be "Bent 180 Degrees" without kinking or cracking, which "Reduces the Number of Fittings" needed in a project. The material's "High Resistance to Pitting Corrosion" ensures a "50+ Year Service Life" even in harsh water conditions. Our tubes provide "Consistent Thermal Performance," making them highly efficient for HVAC heat transfer. The "High Ductility" allows for "Fast and Reliable Flaring" for compression fittings. Furthermore, DHP copper is "Naturally Antimicrobial," helping to "Prevent Biofilm Growth" in water lines. Finally, because it is the "Industry Standard," C12200 is "Widely Available and Compatible" with all professional plumbing tools, ensuring "Smooth Project Execution" for contractors globally.

Standardized HVAC Packaging and Logistics

DHP tubes are packed according to their form: "Pancake Coils" are shrink-wrapped and boxed, while "Straight Lengths" are bundled with plastic end caps. Payment is 30% T/T and 70% L/C. We ship from Ningbo, providing "Mill Test Reports" that certify the phosphorus levels and hydrostatic pressure test results. For high-volume HVAC manufacturers, we offer "LWC (Level Wound Coils)" on wooden reels to facilitate "Automated Production" of heat exchanger fins and coils.

  • Q: Why is phosphorus added to the copper?
  • A: Phosphorus removes oxygen. This makes the copper much easier to weld and braze without it becoming brittle and cracking under heat.
  • Q: Can I use DHP copper for electrical busbars?
  • A: While it will conduct electricity, DHP is 20% less conductive than ETP copper. For electrical applications, you should use C11000 or C10200 instead.
ABOUT US
30+YEARS OF
EXPERIENCE
About Us

A Reliable Partner of the Copper Tube Industry

Zhejiang Jingliang Copper-Tube Products Co., Ltd is China Phosphorus Deoxidized Cu and Phosphorus Deoxidized Cu Factory, which established in 1994, has been deeply involved in the copper tube industry for over three decades. The company primarily produce various specifications of products such as copper tubes, brass tubes, copper square tubes, fin copper tubes, copper capillary tubes, condenser copper tubes, copper evaporator tubes, and conductive rods, which are of quality and have earned the trust and acclaim of customers both domestically and internationally.

Wide Applications:

These products are widely used in various fields including air conditioning, refrigeration, heat exchange, sanitary ware, automotive, machinery, electric furnaces, and chemical industries.

Convenient Transportation:

Strategically located in Tangpu Town, renowned as the “home of copper tubes” in East China. Our company enjoys a prime location, adjacent to the Shangsan Expressway and National Highway 104, and is conveniently situated just over 70 kilometers from Hangzhou and Ningbo, ensuring easy accessibility and a business position.

Strong Financial Resources:

With its strong financial resources and advanced copper tube processing technology, our company holds an advantageous position in market share, brand value, technological content, and product quality, becoming a preferred supplier for many listed groups.

Large Scale Production:

The company occupies an area of over 20,000 square meters, with a construction area of 12,800 square meters. In 2022, our annual production exceeded 7,500 tons, with a value output of up to 450 million yuan, demonstrating our strong production capacity and market competitiveness.

Comprehensive Industry Chain:

Jingliang has now developed into a complete industrial chain integrating smelting, extrusion, drawing, precision rolling, and annealing. It has been awarded multiple honors, including "Top Ten Copper Tube Enterprises" and "Leading Taxpayer in the Copper Tube Industry".

Smart Manufacturing:

Jingliang Copper-Tube Products will better integrate the concept of factory construction into its corporate development strategy, insist on refining technology and polishing products more finely, and the future of "intelligent manufacturing".

Genuine Cooperation:

Zhejiang Jingliang Copper-Tube Products Co.,Ltd warmly welcomes friends from all walks of life to visit and offer guidance. We look forward to joining hands with you to create a brilliant future together.

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