What is TP1/C12000 copper?
C12000 Phosphorus-Deoxidized Copper is a specialized copper alloy based on high-purity copper (Cu content ≥ 99.9%) and deoxidized by adding trace amounts of phosphorus (P content 0.015%-0.040%). Its unique composition design endows it with excellent electrical conductivity, thermal conductivity, machinability, and environmental stability, making it an indispensable key material in modern industry.
Core Characteristics
Electrical and Thermal Conductivity
Electrical conductivity up to 98% IACS (International Annealed Copper Standard), close to pure copper levels, suitable for high-frequency signal transmission and low-loss circuits.
Thermal conductivity of 380-400 W/(m·K), ensuring efficient heat dissipation and preventing equipment overheating.
Mechanical Properties and Machinability
Tensile strength of 245-345 MPa, yield strength ≥ 83 MPa, combining strength with ductility.
Elongation ≥ 45%, excellent cold bending performance, allowing processing into complex-shaped tubes, rods, and profiles.
Hardness HV ≥ 65, wear resistance superior to ordinary pure copper, extending service life.
Process Advantages
Phosphorus Deoxidation Process: Phosphorus combines with oxygen in copper to form phosphorus oxide (P₂O₅), eliminating the risk of "hydrogen embrittlement" and preventing material cracking caused by hydrogen-induced failure.
Weldability and Brazability: No additional deoxidation treatment required; it can be directly joined with silver-based or copper-based brazing materials, resulting in high-strength welded joints.
Cold and Hot Workability: Capable of cold rolling, hot rolling, drawing, and other forming processes to meet various dimensional and precision requirements.
Copper C12000 Pipes and Tubes Chemical Composition
| Grade | Cu | Ph |
| C12000 | Including Ag | 0.004 - 0.012 |
Mechanical Property Of Copper C12000 Pipes & Tubes
| Temper | Temper Code | Tensile Strength | YS-0.5% Ext | Elongation | Rockwell B scale | Rockwell F scale | Rockwell 30T scale | Shear Strength | Fatigue Strength** | Section Size | Cold Work |
| (ksi) | (ksi) | (%) | (ksi) | (ksi) | (in) | (%) | |||||
| Hard Drawn | H80 | 55 Typ | 50 Typ | 8 Typ | 60 Typ | 95 Typ | 63 Typ | 29 Typ | 0.065 | 40 | |
| Light Drawn, Light Cold Rolled | H55 | 40 Typ | 32 Typ | 25 Typ | 35 Typ | 77 Typ | 45 Typ | 26 Typ | 0.065 | 15 | |
| Nominal Grain Size 0.025 mm | OS025 | 34 Typ | 11 Typ | 45 Typ | 45 Typ | 23 Typ | 0.065 | ||||
| Nominal Grain Size 0.050 mm | OS050 | 32 Typ | 10 Typ | 45 Typ | 40 Typ | 22 Typ | 0.065 |
Copper C12000 Pipes and Tubes Physical Property
| Density (lb / cu. in.) | Electrical Resistivity (microhm-cm (at 68 Deg F)) | Melting Point (Deg F) | Mean Coeff Thermal Expansion | Modulus of Elasticity Tension |
| 0.323 | 10.6 | 1981 | 9.4 | 17000 |
Key Application Scenarios
Power distribution systems.
Renewable energy infrastructure (solar/wind).
Automotive electrical systems.
Telecommunications hardware.
FAQ
| What are the main applications of C12000 copper tubes? It's widely used in HVAC/R (heat exchangers, condensers), plumbing, medical gas systems, industrial fluid lines, and electrical busbars. |
| Does C12000 copper corrode in water systems? It has excellent corrosion resistance in clean, non-aggressive water. However, like all copper, it can be affected by acidic water, high-velocity flow, or certain chemicals (e.g., ammonia, sulfides). |
| Is C12000 suitable for underground water lines? Yes, especially when using Type K thick-walled tubing for burial. Its corrosion resistance and strength make it a durable choice for direct burial when soil conditions are non-aggressive. |
| What standards cover C12000 copper tubes? ASTM B75 (seamless), B280 (ACR tubes), EN 12735-1, and JIS H3300 are key standards for tubing. ASTM B152 covers sheet/plate forms. |
| What tempers are available for C12000 tubing? Common tempers are annealed (soft, O60), drawn (hard, H58), and light-drawn (H55). Annealed offers maximum formability; drawn provides higher strength. |
| Can C12000 be used in oxygen service or medical gas systems? Yes, after proper cleaning and degreasing, C12000 tubes are widely used in medical gas (oxygen, nitrous oxide) and high-purity gas systems due to their cleanliness and non-permeability. |
| How does phosphorus affect conductivity in C12000? The low residual phosphorus slightly reduces electrical conductivity (~85% IACS) compared to pure C11000 (~101% IACS), but it remains excellent for most thermal and electrical applications. |
| Is C12000 susceptible to stress corrosion cracking (SCC)? Copper alloys are generally less prone to SCC than brasses, but in environments with ammonia, amines, or nitrites, SCC can occur. Proper design and avoiding sustained tensile stress in such environments are recommended. |
| What's the maximum continuous service temperature for C12000? Typically up to about 150–200°C (302–392°F) for long-term service. Short-term exposure can go higher, but annealing and softening will occur above ~250°C (482°F). |
Inquire about C12000 Pricing & Samples
Our product range
| Category | Key Products | Standards | Typical Applications |
|---|---|---|---|
| Copper Tubes & Pipes | Seamless copper tubes, medical gas pipes (ASTM B819), ACR tubes, capillary tubes, large-diameter pipes, plumbing tubes (Type K/L/M) | ASTM B68, B75, B88, B280, B819, EN1057 | HVAC, refrigeration, plumbing, medical gas systems, industrial pipelines |
| Copper Sheets & Plates | Pure copper sheets, copper alloy plates (brass, bronze), perforated sheets, embossed sheets, clad sheets | ASTM B152, B465, EN1652 | Architectural cladding, electrical components, heat exchangers, decorative arts |
| Copper Bars & Rods | Round bars, square bars, hexagonal bars, flat bars, copper alloy rods (brass, bronze) | ASTM B187, B301, EN12163/12164 | Machined parts, connectors, fasteners, electrodes, forgings |
| Copper Wires & Strands | Bare copper wires, tinned copper wires, braided wires, stranded conductors, enameled wires | ASTM B1, B3, B174, IEC 60228 | Electrical wiring, power transmission, cables, windings, grounding systems |
| Copper Foils | Rolled copper foils, electrolytic copper foils, flexible copper strips | ASTM B370, IPC-4562 | Printed circuit boards (PCBs), electromagnetic shielding, batteries, decorative laminates |
Our factory
Our factory is equipped with state-of-the-art production lines for extrusion, rolling, drawing, and finishing. We specialize in producing a full range of copper and copper alloy products, including tubes, plates, bars, wires, and foils, serving the global HVAC, construction, electrical, medical, and automotive industries.
We are committed to quality and precision, strictly adhering to international standards including ASTM, EN, DIN, and JIS, and maintaining ISO 9001 certification. Our in-house laboratories conduct rigorous testing-from chemical composition and mechanical properties to pressure and cleanliness verification-ensuring end-to-end traceability and compliance for our products.
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