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.
C12000 copper 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.
Common Product Forms and Dimensions
|
Product Form |
Dimension Range |
Applicable Standard |
|
Tube |
Outer Diameter: 5-219mm, Wall Thickness: 0.5-10mm |
GB/T 1527-2017 |
|
Bar |
Diameter: 10-150mm |
GB/T 1528-2019 |
|
Plate/Strip |
Thickness: 0.3-10mm, Width ≤1000mm |
GB/T 2059-2017 |
|
Wire |
Diameter: 0.5-20mm |
GB/T 14953-2017 |
|
Irregular shape |
Custom dimensions based on customer drawings |
Agreement Technical Conditions |
C12000 Phosphorus-Deoxidized Copper
| Category | Property | Value / Range | Condition / Notes |
|---|---|---|---|
| Chemical Composition | Copper (Cu) | ≥ 99.9% | By mass |
| Phosphorus (P) | 0.004% – 0.012% | Deoxidizing agent | |
| Other Impurities (total) | ≤ 0.1% | Includes Fe, Pb, Sn, etc. | |
| Physical Properties | Electrical Conductivity | ≥ 98% IACS | Annealed condition |
| Thermal Conductivity | ≥ 350 W/(m·K) | At 20°C | |
| Density | 8.94 g/cm³ | At 20°C | |
| Melting Point | ~1083°C | ||
| Coefficient of Thermal Expansion | 17.0 × 10⁻⁶ /K | 20–300°C | |
| Mechanical Properties | Tensile Strength | 200 – 250 MPa | Soft (Annealed) |
| 300 – 400 MPa | Hard (Cold Worked) | ||
| Yield Strength (0.2% Offset) | ~ 70 – 150 MPa | Soft | |
| ~ 250 – 350 MPa | Hard | ||
| Elongation | ≥ 40% | Soft (Annealed) | |
| ≥ 10% | Hard (Cold Worked) | ||
| Hardness (Vickers HV) | 40 – 60 HV | Soft (Annealed) | |
| 80 – 100 HV | Hard (Cold Worked) | ||
| Modulus of Elasticity | ~ 115 – 130 GPa |
C12000 vs C12200 Phosphorus-Deoxidized Copper
| Comparison Dimension | C12000 (Low-Phosphorus Deoxidized Copper) | C12200 (High-Phosphorus Deoxidized Copper) |
|---|---|---|
| Common Name / Standard | DLP (Deoxidized Low Phosphorus) UNS C12000 / ASTM B124 |
DHP (Deoxidized High Phosphorus) UNS C12200 / ASTM B124 |
| Phosphorus Content (P) | 0.004% – 0.012% | 0.015% – 0.040% |
| Oxygen Content (O) | Very low (typically < 50 ppm) | Very low (effectively deoxidized) |
| Electrical Conductivity | Very High (≥ 98% IACS) Close to pure copper (C11000). |
Good (≥ 85% IACS) Reduced due to higher P content. |
| Thermal Conductivity | Very High (~350 W/(m·K)) | High (~250 W/(m·K)) |
| Key Feature / Mechanism | Minimal phosphorus for essential deoxidation only, maximizing conductivity. | Higher phosphorus ensures robust and stable deoxidation, enhancing other properties at the cost of some conductivity. |
| Hydrogen Embrittlement Risk | Eliminated (Very low oxygen content). | Eliminated (Effectively deoxidized). |
| Weldability & Brazability | Excellent for most methods (soldering, brazing, welding). | Superior (especially for brazing). Phosphorus acts as a self-fluxing agent in copper-phosphor brazing alloys. |
| Hot Workability | Good | Excellent (Phosphorus significantly improves hot ductility and extrusion performance). |
| Corrosion Resistance | Good (similar to pure copper). | Better (especially against dezincification in certain environments and for erosion-corrosion in water). |
| Typical Forms & Applications | Where high conductivity is critical: - High-efficiency busbars & conductors - Electrical contacts & terminals - Precision electronic components - Vacuum tube parts |
Where fabrication and durability are critical: - Plumbing tubes & fittings (main use) - Heat exchanger tubes (ACR) - Medical gas piping (ASTM B819) - Roofing & flashing - General sheet metal work |
| Cost & Availability | Generally higher cost due to tighter process control. | Very common and cost-effective; the industry standard for many plumbing and general engineering applications. |
Choose C12000 (DLP) when: Your design demands the highest possible electrical or thermal conductivity in a safely deoxidized copper, such as in critical electrical power distribution, high-frequency applications, or precision instrument parts where performance loss must be minimized.
Choose C12200 (DHP) when: Your application is driven by fabrication needs, corrosion resistance, and overall economy. It is the default choice for plumbing, HVAC, general heat exchangers, and architectural applications where its excellent hot workability, superior brazability, and good overall performance offer the best balance.
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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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