What is TP1/C12000 copper?
C12000 is a high-purity phosphorus-deoxidized copper material widely used in fields such as electrical, electronic, machinery manufacturing, and architectural decoration. This material boasts excellent electrical conductivity, thermal conductivity, ductility, and corrosion resistance, making it suitable for processing into various forms, including plates and bars, to meet the demands of diverse industrial applications.
Chemical Composition
The chemical composition of C12000 strictly complies with standards and primarily consists of:
Copper (Cu): ≥99.9%, ensuring high electrical and thermal conductivity.
Phosphorus (P): 0.004%–0.012%, serving as a deoxidizer to enhance material purity.
Other impurities: Elements such as iron (Fe) and lead (Pb) are present in extremely low amounts, ensuring stable material performance.
Its low impurity characteristics make it particularly outstanding in precision electronic components and high-temperature environments.
Physical and Mechanical Properties
Electrical Conductivity: Conductivity ≥98% IACS (International Annealed Copper Standard), close to pure copper levels, making it suitable for high-current transmission scenarios.
Thermal Conductivity: Thermal conductivity coefficient ≥380 W/(m·K), suitable for components such as heat sinks and heat exchangers.
Mechanical Properties:
Tensile Strength: 200–250 MPa (annealed state).
Elongation: ≥35%, demonstrating excellent plastic processing capability.
Hardness: HV 40–60 (soft state), which can be further increased through cold working.
Corrosion Resistance: Exhibits good resistance to corrosion from atmosphere, water, and non-oxidizing acids, making it suitable for humid or chemical environments.
Processing and Application Areas
Processing Characteristics: C12000 is easy to stamp, bend, weld, and machine, allowing for the fabrication of complex-shaped components.
Typical Applications:
Electrical Industry: Busbars, connectors, switch contacts, etc.
Electronic Devices: Circuit board substrates, shields.
Industrial Components: Heat exchanger tubes, valve parts.
Architectural Decoration: Roofing plates, artistic sculptures, etc.
Key Distinctions from Other Common Coppers:
vs. C11000 (ETP Copper - Electrolytic Tough Pitch):
C11000 contains oxygen (~0.04%). It is not recommended for welding or high-temperature reducing atmospheres (risk of hydrogen embrittlement). C12000 is preferred for welded applications.
vs. C12200 (Similar DHP Copper):
C12200 has a slightly higher phosphorus range. They are often considered interchangeable for many applications, but C12200 is more common for plumbing tube.
vs. C10100 / C10200 (Oxygen-Free Copper):
OF coppers have higher conductivity (101% IACS) and superior ductility. They are used for high-vacuum electronics and critical conductors. C12000 is more economical for general plumbing and heat exchangers.
Equivalent Grades Table for C12000 Copper
| Standard System | Equivalent Grade | Name / Description |
|---|---|---|
| UNS (USA) | C12000 | The defining standard. Phosphorus-deoxidized copper. |
| ASTM (USA) | B152, B124 | Specification standards for sheet/strip and rod/bar forms. |
| CDA (USA) | Alloy 120 | Copper Development Association designation. |
| Common Name | DHP Copper | Deoxidized High Phosphorus - the universal industry name. |
| EN (Europe) | Cu-DHP | Modern European designation (EN 1652, 12449). |
| ISO | Cu-DHP | International Standard (ISO 431). |
| JIS (Japan) | C1201 | The direct Japanese equivalent. |
| BS (UK - Old) | C106 | Former British Standard for tubes (BS 2875). |
| China GB | TP1 | The closest functional Chinese equivalent. Phosphorus-deoxidized copper for tubes/pipes. |
Inquire about C12000 Pricing & Samples
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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