What is C12000 copper?
TP1/C12000 copper rods and plates are high-performance phosphorus-deoxidized copper materials, widely used in industrial manufacturing due to their excellent electrical and thermal conductivity, corrosion resistance, and good machinability. This material significantly reduces oxygen content through a phosphorus deoxidation process, avoiding the "hydrogen embrittlement" phenomenon common in traditional pure copper, while maintaining the essential properties of copper. It is an ideal choice for precision components and conductive/thermal conductive elements.
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Chemical Composition
TP1 copper's chemical composition strictly conforms to international standards. The main components are:
- Copper (Cu): ≥99.9%, ensuring high-purity base performance;
- Phosphorus (P): 0.004%~0.012%, acting as a deoxidizer to improve the material's resistance to hydrogen embrittlement;
- Other impurities: such as lead, iron, sulfur, etc., are controlled below 0.1% to ensure material stability.
Physical and Mechanical Properties
1. Electrical and Thermal Conductivity: Electrical conductivity ≥98% IACS, thermal conductivity up to 380 W/(m·K), suitable for high-efficiency energy transfer applications;
2. Mechanical Properties: Tensile strength ≥200 MPa, elongation ≥35%, combining strength and ductility, easy to process by stamping, bending, etc.;
3. Corrosion Resistance: Good resistance to atmospheric, fresh water, and non-oxidizing acid environments, not easily oxidized or discolored with long-term use;
4. Weldability: Can be welded using various methods such as brazing and argon arc welding, resulting in high-strength welded joints with no tendency to crack.
Chemical Composition
|
Copper+Silver With Ag: |
Tin Sn: |
Zinc Zn: |
Lead Pb: |
Nickel It is: |
Iron Fe: |
|
≥ 99.90 |
≤ 0.002 |
≤ 0.005 |
≤ 0.005 |
≤ 0.005 |
≤ 0.01 |
|
Antimony Sb: |
Sulphur S: |
Arsenic As: |
Bismuth Bi: |
Oxygen O: |
Phosphorus P: |
|
≤ 0.002 |
≤ 0.005 |
≤ 0.002 |
≤ 0.002 |
≤ 0.01 |
0.005～0.012 |
Mechanical Properties
|
Tensile Strength Kb (MPa): |
Elongation D10 (%): |
Hardness: |
|
245～345 |
≥ 8 |
75～120HV |
Copper C12000 Light Drawn Tube Price List
| Nominal Size's | Price in USD |
|---|---|
| 50 x 45 x .7 m | US $ 17.77 |
| Od -1/4" x 0.36 Thk x 20 Swg | US $ 32.66 |
| Od - 17 mm x 3 mm Wt | US $ 26.64 |
| Od - 1/2" x 0.89 mm Thk | US $ 29.06 |
| Od - 19.05 mm x14 Bwg | US $ 20.36 |
C12000 vs. C12200
| Feature | UNS C12000 (CDA 120) | UNS C12200 (CDA 122) |
|---|---|---|
| Common Name | Phosphorus Deoxidized, Low Residual P (DLP) | Phosphorus Deoxidized, High Residual P (DHP) |
| Primary Standard | ASTM B152, B124 | ASTM B152, B124 |
| ISO Designation | Cu-DLP | Cu-DHP |
| EN Designation | CW024A | CW024C |
| JIS Designation | C1201 | C1220 |
| Nominal Composition | 99.90% Cu min. | 99.90% Cu min. |
| Key Difference | Low Phosphorus (0.004 - 0.012%) | Higher Phosphorus (0.015 - 0.040%) |
| Electrical Conductivity | Very High (~100% IACS) | Good, but lower (~85% IACS) |
| Thermal Conductivity | Very High (~390 W/m·K) | Good (~340 W/m·K) |
| Resistance to Hydrogen Embrittlement | Poor | Excellent |
| Weldability & Brazability | Excellent (low P helps flow) | Excellent (P acts as a deoxidizer) |
| Soft Soldering | Excellent | Excellent |
| Typical Forms | Tube, pipe, sheet, plate, busbar | Tube, pipe (dominant), sheet, plate |
| Relative Cost | Slightly higher | Standard, most common |
Choose UNS C12000 (DLP - Low P) when:
High electrical or thermal conductivity is the TOP priority. Examples:
Electrical Busbars and high-efficiency windings.
Heat Exchanger tubes or components where maximum thermal transfer is critical.
Lightning Conductor systems.
The application involves high-temperature brazing or welding in an atmosphere that is NOT reducing (e.g., inert gas, vacuum, air).
You need superior cold working properties for severe forming (marginally better than C12200).
Choose UNS C12200 (DHP - High P) when:
The application involves plumbing, hydronic heating, refrigeration, or fuel/gas lines. This is the standard, most widely used copper water tube alloy globally.
Safety against hydrogen embrittlement is paramount. This includes:
Any service in a reducing atmosphere (e.g., components for hydrogen or synthesis gas systems).
Annealing or brazing in a furnace with a reducing atmosphere.
Cost-effectiveness is important for standard applications not requiring peak conductivity. C12200 is more commonly produced and often more readily available.
Good overall formability, weldability, and brazability are sufficient.
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Dimensional Range Table
In plumbing and HVAC standards, copper tubing is commonly classified into three main types based on wall thickness: Type K, Type L, and Type M.
Type K: Has the thickest wall. It is the strongest and most durable, primarily used for underground burial, high-pressure applications, and where the highest level of protection is required.
Type L: Has a medium wall thickness. It is the most common and versatile type, widely used for residential and commercial water supply lines (hot and cold) and for many HVAC applications.
Type M: Has the thinnest wall. It is suitable for above-ground, low-pressure residential water supply lines and some drainage applications, offering a cost-effective solution where conditions allow.
The outside diameter (OD) is the same for all three types within a given nominal size. The difference lies in the inner diameter (ID), which decreases as the wall gets thicker.
| Nominal Size (inches) | Type K | Type L | Type M |
|---|---|---|---|
| Outside Diameter (OD) | Same for all types | ||
| Wall Thickness | Thickest | Medium | Thinnest |
| Inside Diameter (ID) | Smallest | Medium | Largest |
| 1/2" | OD: 0.625" ID: 0.527" Wall: 0.049" |
OD: 0.625" ID: 0.545" Wall: 0.040" |
OD: 0.625" ID: 0.569" Wall: 0.028" |
| 3/4" | OD: 0.875" ID: 0.745" Wall: 0.065" |
OD: 0.875" ID: 0.785" Wall: 0.045" |
OD: 0.875" ID: 0.811" Wall: 0.032" |
| 1" | OD: 1.125" ID: 0.995" Wall: 0.065" |
OD: 1.125" ID: 1.025" Wall: 0.050" |
OD: 1.125" ID: 1.055" Wall: 0.035" |
Our factory
Our factory is built for precision and scale in producing copper rods, tubes, plates, bars, wires, and strips. We operate advanced equipment such as upward continuous casting systems for oxygen-free copper rods, CNC-controlled pilger mills for seamless tubes, and automated strip rolling lines with real-time thickness monitoring. All products are manufactured to meet ASTM, DIN, and customer-specific standards, with process control at every stage. Our quality assurance includes metallographic analysis, conductivity testing, and surface quality inspection via optical comparators. From raw material to finished product, we ensure consistency, performance, and on-time delivery for industrial and OEM partners globally.
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Copper product packaging
Our copper product packaging always prioritizes safety protection and professional identification. Copper rods and profiles are securely bundled with steel straps and fixed on reinforced wooden pallets, with waterproof and moisture-proof film wrapped around the exterior. Copper tubes are equipped with protective caps on both ends and packaged in custom-designed cartons or wooden crates with internal cushioning materials. Copper plates and strips are interleaved with anti-rust paper and fully encapsulated in steel-edged crates. All packages are affixed with clear product labels, specifications, and moisture-proof tags. For high-purity copper materials or those with special application requirements (such as oxygen-free copper wires and high-end copper strips), we also offer professional nitrogen-filled sealed packaging to ensure complete oxygen isolation during transportation and storage, preventing oxidation and maintaining the optimal performance and surface condition of the materials.
