What is TP1/C12000 copper?
C12000 phosphorus-deoxidized copper is an oxygen-free copper material with low residual phosphorus content, exhibiting higher electrical and thermal conductivity than TP2. It possesses good weldability and cold bending performance and shows no tendency for "hydrogen slag" when processed and used in a reducing atmosphere. This material is primarily used in tubing applications, but can also be processed into plates, strips, rods, or wires, and is widely used in the manufacture of gasoline/gas transmission pipes, condensers, heat exchangers, drainage pipes, mine casings, and train car parts.
Its chemical composition contains no less than 99.9% copper + silver (Cu + Ag) and phosphorus (P) content controlled between 0.004% and 0.012%. In terms of mechanical properties, it has a tensile strength range of 215–275 MPa and a hardness range of 55–100 HV, possessing both moderate strength and ductility.
Chemical Composition
| Element | Content (%) |
|---|---|
| Cu | 99.9 |
| P | 0.008 |
Physical Properties
| Properties | Metric | Imperial |
|---|---|---|
| Density | 8.89 g/cm3 | 0.321 lb/in3 |
| Melting point | 1083°C | 1981°F |
Mechanical Properties
| Properties | Metric | Imperial |
|---|---|---|
| Tensile strength, ultimate | 221 - 393 MPa | 32100 - 57000 psi |
| Tensile strength, yield (depending on temper) | 69.0 - 365 MPa | 10000 - 52900 psi |
| Elongation at break ( in 101.6 mm (4 in.)) | 55% | 55% |
| Machinability (UNS C36000 (free-cutting brass) = 100%) | 20% | 20% |
| Poisson's ratio | 0.34 | 0.34 |
| Elastic modulus | 117 GPa | 16970 ksi |
Material Properties
Superior electrical and thermal conductivity compared to TP2 phosphorus deoxidized copper, due to its lower residual phosphorus content.
Good weldability and formability; less prone to cracking during cold bending.
Strong stability in reducing atmospheres, avoiding hydrogen embrittlement.
Applications
Energy transmission systems: Fluid transmission components such as gasoline or gas delivery pipes, drainage pipes, and condenser pipes.
Heat exchange equipment: Core components such as condenser tubes, evaporator tubes, and heat exchanger tubes.
Transportation equipment: Train car parts, gasoline or gas delivery pipes, drainage pipes, condenser pipes, mine casings, condensers, evaporators, and heat exchangers.
C12000 - DHP vs C12200 - DHP Copper
| Feature | C12000 - DHP Copper (Low Residual Phosphorus) | C12200 - DHP Copper (Standard / Higher Phosphorus) |
|---|---|---|
| Phosphorus (P) Content | Very Low: 0.004% to 0.012% | Higher & Controlled: 0.015% to 0.040% |
| Common Name / Standard | Phosphorus Deoxidized, Low Residual P (DHP) | Phosphorus Deoxidized, High Residual P (DHP). Often called "Phosphorized Copper" for plumbing. |
| Oxygen Content | Oxygen-Free (deoxidized by P) | Oxygen-Free (deoxidized by P) |
| Electrical Conductivity | Relatively High: ~85% to 90% IACS | Lower: ~80% to 85% IACS (P is a greater resistor) |
| Thermal Conductivity | Very Good | Good (slightly lower than C12000) |
| Key Property & Advantage | Optimized for a balance of good conductivity and excellent weldability. The minimal P maximizes conductivity within the weldable DHP family. | Optimized for superior corrosion resistance, particularly against dezincification in potable water systems. The higher P level provides this protection. |
| Weldability & Brazability | Excellent (Standard for DHP coppers) | Excellent (Standard for DHP coppers) |
| Primary Application Focus | Industrial Fabrication & HVACR: • Welded assemblies & heat exchangers • Refrigeration tubing & components • Applications where good conductivity and weldability are needed. |
Plumbing / Potable Water Systems: • Water tubes, pipes, and fittings (meets ASTM B88, B306). • The industry standard for modern plumbing. |
| Corrosion Resistance | Good general corrosion resistance. | Superior, specifically for water. The higher phosphorus content inhibits dezincification (a selective leaching corrosion) in waters that can attack brass fittings or other alloys. |
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.
Get Fast Quote & Logistics Plan
