What is C12000 copper?
C12000 copper is made from a high-purity electrolytic copper, also known as ETP copper (Electrolytic Tough Pitch Copper). Its main component is copper, with a content of more than 99.9%, and it also contains small amounts of impurity elements such as oxygen, iron and sulfur.
We provide TP1/C12000 copper pipes
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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 and Machining Properties
Strength and Plasticity: Mechanical properties vary significantly with processing conditions. Soft state (O60): Tensile strength 210–250 MPa, elongation ≥35%, hardness 45–65 HV; Hard state (H04): Tensile strength 300–360 MPa, elongation ≥3%, hardness 100–130 HV. This wide range of adaptability makes it suitable for diverse needs, from deep drawing to spring components.
Machining Adaptability: Excellent cold and hot working properties support stamping, bending, welding, and other operations. Brazing fluidity is 20% higher than ordinary copper, suitable for flame welding, induction welding, and other processes, and there is no risk of "hydrogen slag" in reducing atmospheres (but limited in oxidizing atmospheres).
Industrial Applications of C12000 Copper
Heat Exchange and Piping Systems
Heat Exchange Components: Used in air conditioning refrigeration copper pipes, solar collector channels, industrial boiler heat exchange tubes, and automotive radiator cores, relying on its high thermal conductivity and corrosion resistance.
Fluid Transmission Piping: Including gas transmission pipes, medical gas pipelines, underfloor heating coils, and chemical equipment linings. Its weldability and cold bending characteristics ensure the sealing and durability of complex piping systems.
Electrical and High-End Equipment
Conductive Components: Suitable for motor brushes, busbars, and integrated circuit lead frames, balancing conductivity requirements (98% IACS) with structural strength.
Special Applications: Corrosion resistant in marine seawater pipelines and brewing equipment; provides lightweight, high-strength solutions in aerospace fasteners and artistic structural components.
Construction and Transportation
As building water supply and drainage pipes, train carriage parts, and copper decorative materials, it combines functionality and long lifespan, adapting to harsh outdoor environments.
Equivalents of UNS C12000 Copper
| Standard | Designation | Name / Description | Key Similarities |
|---|---|---|---|
| UNS (USA) | C12000 | Phosphorus Deoxidized, Low Residual Phosphorus (DLP) | Base Standard |
| ASTM (USA) | B152, B124 | C12000 | |
| CDA (USA) | 120 | - | Industry Standard |
| ISO | Cu-DLP | Copper - DLP (Chemical Symbol) | Closest ISO Chemical Designation |
| EN (Europe) | Cu-DLP (EN 1412) CW024A (EN 13599) |
Copper - DLP | Chemical Composition Equivalent |
| JIS (Japan) | C1201 | Phosphorus Deoxidized Copper | Nearly Identical |
| GB (China) | TP1 | Phosphorus Deoxidized Copper | Note: TP1 is generally considered the closest match, though phosphorus content may differ slightly. |
| DIN (Germany) | SF-Cu (DIN 1708) | Deoxidized Copper with Low Residual Phosphorus | |
| BS (UK) | C106 | Phosphorus Deoxidized Copper for General Purposes |
C12000 vs C10200
| Feature | UNS C12000 | UNS C10200 |
|---|---|---|
| Common Name | Phosphorus Deoxidized, Low Residual P (DLP) | Oxygen-Free Copper (OF) |
| Key Composition | Cu ≥99.90%, P: 0.004-0.012% | Cu ≥99.95%, O ≤0.0005% |
| Oxygen Content | Very Low | Extremely Low (Virtually Zero) |
| Deoxidizer | Phosphorus | None (Process-controlled) |
| Electrical Conductivity | Very High (~100% IACS) | Highest (~101%+ IACS) |
| Thermal Conductivity | Very High | Slightly Higher |
| Formability & Ductility | Excellent | Superior (especially in annealed state) |
| Weldability & Brazability | Excellent (due to P deoxidation) | Excellent (requires inert atmosphere) |
| Resistance to Hydrogen Embrittlement | Poor (in reducing atmospheres) | Very Good (no Cu₂O to react) |
| Typical Applications | High-conductivity busbars, heat exchangers, tubing | High-vacuum electronics, glass-metal seals, waveguides, sputtering targets |
Choose C10200 (Oxygen-Free Copper) when your priority is:
Maximum Purity & Conductivity: For critical electrical/electronic components (e.g., waveguides, semiconductor parts).
High-Temperature in Hydrogen: For service in reducing atmospheres (e.g., hydrogen furnaces, brazing atmospheres) where hydrogen embrittlement is a risk.
Superior Ductility & Forming: For severe cold working and deep drawing applications.
High-Vacuum or Sealing Applications: Where outgassing or oxidation at high temperatures must be absolutely minimized (e.g., glass-metal seals, accelerator parts).
Choose C12000 (Phosphorus Deoxidized Copper) when your priority is:
Excellent Conductivity at Lower Cost: For high-performance busbars, electrical conductors, and heat exchangers where C10200's marginal gain isn't justified.
Easier Joining in Air: Its deoxidized nature makes it very forgiving for welding and brazing in standard shop environments.
General High-Conductivity Applications: Where hydrogen embrittlement is not a concern (e.g., standard electrical components, non-reducing atmosphere heat transfer).
Good Balance of Performance and Practical Fabrication.
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Dimensional Range Table
| Product Category | Standard / Grade | Typical Sizes (Outer Diameter) | Wall Thickness | Available Forms | Common Applications |
|---|---|---|---|---|---|
| Seamless Copper Tube | ASTM B68, B75, B88, B280, B819, EN1057, etc. | 3 mm ~ 300 mm (1/8" ~ 12") |
Light gauge to Schedule K (Customizable per standard) |
Straight Lengths, Coils | Plumbing, HVAC, Medical Gas, Industrial Pipelines |
| Capillary Tube | ASTM B360 | 0.5 mm ~ 12 mm (0.02" ~ 1/2") |
Ultra-thin walls (As per drawing) |
Straight Lengths, Coils | Instrumentation, Refrigeration, Heat Exchangers |
| Copper Pipe for Plumbing | ASTM B88 (Type K, L, M) | 6 mm ~ 254 mm (1/4" ~ 10") |
Type M (thin), L (standard), K (thick) | Straight Lengths (20ft), Coils | Potable Water Systems, Heating, Cooling |
| ACR Tube (Refrigeration) | ASTM B280 | 6.35 mm ~ 158.8 mm (1/4" ~ 6-1/8") |
ACR standard wall | Straight Lengths, Bundled Coils | Refrigeration, Air Conditioning |
| Medical Gas Copper Tube | ASTM B819, ISO 7396-1 | 6 mm ~ 108 mm (1/4" ~ 4-1/4") |
Cleaned & degreased Oxygen service grade |
Straight Lengths, Capped Ends | Oxygen, Medical Air, Vacuum Systems |
| Large Diameter Copper Pipe | Custom Drawn | Up to 457 mm (18") | Heavy wall, custom schedules | Straight Lengths (custom cut) | Industrial Process Lines, Marine, Specialty Applications |
Our factory
Our production facility is a modern, vertically integrated copper products factory equipped with state-of-the-art extrusion, drawing, annealing, and cleaning production lines. We specialize in producing seamless copper tubes of various sizes, from capillary tubes to large-diameter industrial pipes, all conforming to international standards such as ASTM, EN, and DIN. The factory strictly adheres to a quality management system (ISO 9001 certified) and utilizes advanced testing equipment, including spectrometers, hydrostatic testing machines, and oxygen pipeline cleanliness testing systems. With an annual production capacity exceeding 15,000 tons, we have a reliable supply record in industries such as HVAC, piping, medical gases, and shipbuilding, and are committed to providing high-precision, fully traceable, and on-time delivered products.
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