What is TP1/C12000 copper?
TP1/C12000 phosphorus-deoxidized copper is a copper alloy deoxidized by adding trace amounts of phosphorus (0.004%–0.012%). Its unique composition design significantly improves welding and processing performance while retaining high electrical and thermal conductivity, making it a key material in industrial applications.
Composition and Physical Properties
C12000 is based on high purity, with a copper-silver (Cu+Ag) content ≥99.90% and phosphorus (P) strictly controlled between 0.004%–0.012%. The addition of trace amounts of phosphorus effectively eliminates the adverse effects of oxygen (oxygen content ≤0.015%), avoiding "hydrogen embrittlement" (hydrogen embrittlement in high-temperature reducing atmospheres), while also refining the grain size and improving mechanical properties. Its density is 8.96 g/cm³, melting point is 1080℃–1085℃, electrical conductivity reaches 98% IACS (International Standard for Annealed Copper), thermal conductivity is 380 W/(m·K), and coefficient of thermal expansion is 17.3 × 10⁻⁶/℃. Its overall performance is superior to ordinary pure copper.
Main applications include
Fluid transport systems: gasoline/gas transport pipes, drainage pipes, mine pipes
Thermal management components: condenser tubes, evaporators, heat exchangers
Rail transit components: train car parts
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) | TP1 | Phosphorus Deoxidized Copper | Note: TP1 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 |
C12000 vs C10200
| Feature | UNS C12000 | UNS C10200 |
|---|---|---|
| Common Name | Phosphorus Deoxidized, Low Residual P (DLP) | Oxygen-Free Copper (OF) |
| Key Composition | Cu ≥99.90%, P: 0.004-0.012% | Cu ≥99.95%, O ≤0.0005% |
| Oxygen Content | Very Low | Extremely Low (Virtually Zero) |
| Deoxidizer | Phosphorus | None (Process-controlled) |
| Electrical Conductivity | Very High (~100% IACS) | Highest (~101%+ IACS) |
| Thermal Conductivity | Very High | Slightly Higher |
| Formability & Ductility | Excellent | Superior (especially in annealed state) |
| Weldability & Brazability | Excellent (due to P deoxidation) | Excellent (requires inert atmosphere) |
| Resistance to Hydrogen Embrittlement | Poor (in reducing atmospheres) | Very Good (no Cu₂O to react) |
| Typical Applications | High-conductivity busbars, heat exchangers, tubing | High-vacuum electronics, glass-metal seals, waveguides, sputtering targets |
Choose C10200 (Oxygen-Free Copper) when your priority is:
Maximum Purity & Conductivity: For critical electrical/electronic components (e.g., waveguides, semiconductor parts).
High-Temperature in Hydrogen: For service in reducing atmospheres (e.g., hydrogen furnaces, brazing atmospheres) where hydrogen embrittlement is a risk.
Superior Ductility & Forming: For severe cold working and deep drawing applications.
High-Vacuum or Sealing Applications: Where outgassing or oxidation at high temperatures must be absolutely minimized (e.g., glass-metal seals, accelerator parts).
Choose C12000 (Phosphorus Deoxidized Copper) when your priority is:
Excellent Conductivity at Lower Cost: For high-performance busbars, electrical conductors, and heat exchangers where C10200's marginal gain isn't justified.
Easier Joining in Air: Its deoxidized nature makes it very forgiving for welding and brazing in standard shop environments.
General High-Conductivity Applications: Where hydrogen embrittlement is not a concern (e.g., standard electrical components, non-reducing atmosphere heat transfer).
Good Balance of Performance and Practical Fabrication.
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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