What is TP1/C12000 copper?
Pure copper, also known as red copper, gets its name from its purplish-red color after oxidation. It possesses excellent electrical and thermal conductivity, along with good plasticity and corrosion resistance. TP1 is a grade of pure copper with a specific phosphorus content range. The trace amounts of phosphorus added are primarily for deoxidation, improving the material's corrosion resistance and processing performance to some extent. Pure copper tubes are tubular products made from this material through processes such as extrusion and drawing.
Characteristics of TP1 Pure Copper Tubes
The characteristics of TP1 pure copper tubes determine their applications. Their outstanding thermal conductivity makes them a viable material in heat exchange equipment, such as certain types of radiators and heater piping. In these applications, pure copper tubes effectively transfer heat, meeting the requirements of heat exchange. The corrosion resistance of pure copper allows it to adapt to various environments, especially in situations requiring high material purity or contact with specific media. The good plasticity of pure copper makes it easy to bend and flare copper tubes, facilitating installation and shaping.
Copper C12000 Tubes Chemical Composition
| Grade | Cu | Ph |
| C12000 | Including Ag | 0.004 - 0.012 |
Copper C12000 Tubes Mechanical Properties
| 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 |
Copper C12000 Tube Temper
| Copper Tube HRF50 | ASTM B111 Copper C12000 HRF50 Tube |
| ASTM B68 Copper C12000 HRF50 Tube | ASTM B280 Copper C12000 HRF50 Tube |
| ASTM B280 Copper C12000 O50 Tube | Copper O50 TEMPER Tubes |
| Copper Tube O50 | Copper Tube ASTM B111 C12000 O60 Tube |
| Copper Tube ASTM B280 C12000 H55 Tube | Copper C12000 H55 Tube |
| Copper H55 TEMPER Tubes | Copper Tube H55 |
| Copper 061 TEMPER Tubes | Copper Tube 061 |
| Copper Tube H80 | ASTM B111 Copper C12000 H80 Tube |
| ASTM B68 Copper C12000 H80 Tube | ASTM B280 Copper C12000 H80 Tube |
| Copper Tube ASTM B111 C12000 061 Tube | Copper Tube ASTM B68 C12000 061 Tube |
| Copper Tube ASTM B280 C12000 061 Tube | Copper C12000 061 Tube |
| ASTM B111 Copper C12000 061 Tube | ASTM B68 Copper C12000 061 Tube |
| ASTM B280 Copper C12000 061 Tube | Copper Tube ASTM B111 C12000 HRF40 Tube |
Characteristics of TP1 Pure Copper Tubes
The characteristics of TP1 pure copper tubes determine their applications. Their outstanding thermal conductivity makes them a viable material in heat exchange equipment, such as certain types of radiators and heater piping. In these applications, pure copper tubes effectively transfer heat, meeting the requirements of heat exchange. The corrosion resistance of pure copper allows it to adapt to various environments, especially in situations requiring high material purity or contact with specific media. The good plasticity of pure copper makes it easy to bend and flare copper tubes, facilitating installation and shaping.
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) | TP2 (Old: T2P) | Phosphorus Deoxidized Copper | Note: TP2 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 |
FAQ
| 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). |
| How should C12000 tubes be stored to prevent oxidation? Store in a dry, covered area. For long-term storage or in humid climates, sealed plastic wrapping or nitrogen purging is recommended to prevent surface tarnishing. |
| Can C12000 be bent easily? Yes, especially in the annealed temper. For hard temper tubes, bending may require a mechanical bender to avoid kinking or cracking. |
| What is the difference between TP1 (C12000) and TP2 (C12200) copper? TP1 (C12000) and TP2 (C12200) are both phosphorus-deoxidized coppers, but they differ in residual phosphorus content: TP1 (C12000): Low residual phosphorus (0.004–0.012%). Designed for applications requiring high conductivity and good weldability, such as heat exchangers and electrical components. TP2 (C12200): Higher phosphorus content (0.015–0.040%). Offers improved weldability and brazability due to better deoxidation, but has slightly lower electrical conductivity (~80% IACS). Commonly used in plumbing, HVAC, and piping systems where welding/brazing is critical. Key takeaway: TP1 prioritizes conductivity, while TP2 prioritizes weldability and brazing performance. |
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Our product range
| Product Category | Key Product Forms | Common Standards (Examples) | Typical Applications / Features |
|---|---|---|---|
| Copper Rods & Bars | Round Rods, Square Bars, Hexagonal Bars | ASTM B187, C11000, C10200; EN 12163-66; JIS H3250 | Electrical conductors, machined parts, connectors, hardware. Available in various tempers (soft, hard). |
| Copper Tubes & Pipes | Seamless Tubes, Straight Lengths, Coils (for flexible tubes) | ASTM B75, B280, B88; EN 12735; JIS H3300 | Plumbing, HVAC/R, heat exchangers, medical gas lines, hydraulic systems. |
| Copper Plates & Sheets | Plates (>6mm thickness), Sheets (<6mm thickness) | ASTM B152, C11000; EN 1652; JIS H3100 | Architectural cladding, industrial fabrication, grounding plates, chemical processing. |
| Copper Strips & Foils | Strips, Rolls, Precision Foils | ASTM B272, C11000; EN 1652; JIS H3100 | Electrical contacts, transformers, shielding, gaskets, decorative inlays. |
| Copper Wires | Bare Copper Wire, Stranded Wire, Busbars | ASTM B1, B3, B187; EN 13601; JIS H3260 | Windings, cables, busbars, fasteners, welding electrodes. |
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.
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