What is TP1/C12000 copper?
C12000/TP1 has good welding and cold bending properties, generally has no tendency to "hydrogen disease", can be processed and used in a reducing atmosphere, but not in an oxidizing atmosphere. It is mainly used in pipes, and can also be supplied in plates, strips, rods, and wires. It is used as gasoline or gas transmission pipes, drain pipes, condensers, mine pipes, condensers, evaporators, heat exchangers, and train car parts.
TP1/C12000 USES
Electric Power Industry: Power transmission such as wire cables, transformers, switches, plug-in components and connectors; motor manufacturing such as stators, rotors, shaft heads and hollow wires; communication cables and residential electrical lines also require a large amount of copper wires.
Electronic Industry: Vacuum devices such as high-frequency and ultra-high-frequency transmitting tubes, ferry tubes, magnetrons, etc., which require high-purity oxygen-free copper and dispersion-strengthened oxygen-free copper. Copper printed circuits require a large amount of copper foil and copper-based brazing materials.
In integrated circuits, copper replaces aluminum in silicon chips as interconnects and lead frames.
Transportation industry: In the shipbuilding industry, copper alloys including aluminum bronze, manganese bronze, aluminum brass, gunmetal (tin-zinc bronze), white copper and nickel-copper alloy (monel alloy) are all standard materials for shipbuilding. In warships and merchant ships, copper and copper alloys are generally used for aluminum bronze propellers, bolts, condensers, rivets, copper-containing coating paint, etc.
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TP1/C12000 copper Chemical composition
| Chemical composition | |||||
| Cu+Ag | Sn | Zn | Pb | Ni | Fe |
| ≥99.90 | ≤0.002 | ≤0.005 | ≤0.005 | ≤0.005 | ≤0.01 |
| Sb | S | As | Bi | O | P |
| ≤0.002 | ≤0.005 | ≤0.002 | ≤0.002 | ≤0.01 | 0.005～0.012 |
TP1/C12000 copper Mechanical properties
| Mechanical properties | |||||
| σb (MPa) | δ10 (%) | hardness | |||
| 245～345 | ≥8 | 75～120HV | |||
Mechanical Properties
|
State |
Tensile Strength (MPa) |
Elongation (%) |
Vickers Hardness (HV) |
|
Hard (Y) |
≥275 |
≥5 |
80-110 |
|
Annealed (M) |
≥200 |
≥40 |
50-70 |
TP1 copper VS TP2 copper
| Aspect | TP1 (C12000) | TP2 (C12200) |
|---|---|---|
| Common Name | Phosphorus Deoxidized Copper, Low Residual P (DHP) | Phosphorus Deoxidized Copper, High Residual P (DHP) |
| UNS Designation | C12000 | C12200 |
| Phosphorus (P) Content | 0.004–0.012% (Low Residual) | 0.015–0.040% (Higher Residual) |
| Key Metallurgical Role | Deoxidizer – removes oxygen to prevent embrittlement. | Stronger deoxidizer – ensures excellent brazability and weldability. |
| Electrical Conductivity (IACS) | ~85% (Good) | ~80% (Slightly lower due to higher P) |
| Thermal Conductivity | Excellent | Very Good |
| Weldability & Brazability | Very Good (can be welded/brazed without flux for Cu-Cu joints). | Excellent (superior for brazing; phosphorus aids capillary flow). |
| Corrosion Resistance | Excellent in most environments (water, atmosphere). | Excellent, similar to TP1. |
| Formability & Ductility | Excellent (especially in annealed temper). | Excellent. |
| Typical Product Forms | Tubes, pipes, sheets, plates, busbars, rods. | Primarily tubes & pipes for plumbing/HVAC. |
| Primary Applications | Heat exchangers, condensers, electrical components, general engineering. | Plumbing systems, HVAC piping, medical gas lines, brazed assemblies. |
| Key Advantage | Balanced performance: high conductivity + good weldability. | Superior joining performance: optimized for brazing and welding. |
| Cost & Availability | Widely available; moderate cost. | Very common for tubing; cost similar to TP1. |
| Industry Standards | ASTM B75 / B280 (tube), B152 (sheet) | ASTM B75 / B88 (tube), EN 12735-1 |
How to Choose: TP1 vs. TP2
| Choose TP1 (C12000) if: | Choose TP2 (C12200) if: |
|---|---|
| • Electrical or thermal conductivity is a priority (e.g., busbars, heat exchangers). • You need a good balance of conductivity and weldability for general fabrication. • The application is not exclusively focused on brazed plumbing joints. |
• The primary requirement is ease of brazing or welding (e.g., plumbing, HVAC piping). • You are installing copper tubing for potable water or refrigerant lines where leak-free joints are critical. • The slight loss in conductivity is acceptable for the application. |
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Our factory
We are a specialized manufacturer of premium copper products, including rods, tubes, plates, bars, wires, and strips. Our factory strictly adheres to international standards such as ASTM, EN, JIS, and GB, ensuring material compliance for global markets. Equipped with modern production lines-including continuous casting for rods, cold drawing machines for tubes, and precision rolling mills for strips-we maintain tight control over dimensions and tolerances. Every batch undergoes rigorous in-house testing using spectrometers for chemical composition, tensile testers for mechanical properties, and eddy current testers for defect detection. Our dedicated quality lab guarantees traceable, reliable products for electrical, automotive, and engineering applications worldwide.
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.
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