What is TP1/C12000 copper?
TP1/C12000 is a type of tubing made of pure copper, with "TP1" representing its specific material grade. Pure copper is a common name for copper, named for its purplish-red color after oxidation. TP1 copper tubing has a high copper content and usually contains small amounts of other elements to enhance certain properties.
The manufacturing process of this tubing is relatively complex, requiring multiple steps including smelting, casting, extrusion, and stretching. Each step requires precise control to ensure the quality of the final product. For example, during extrusion, temperature and speed must be carefully controlled to guarantee the uniformity and density of the tubing.
TP1 and C12000 Characteristics and Applications
TP1 and C12000 phosphorus-deoxidized copper have good welding and cold bending properties, generally do not exhibit "hydrogen slag" tendency, and can be processed and used in reducing atmospheres, but are not suitable for processing and use in oxidizing atmospheres. TP1 has a lower residual phosphorus content than TP2, therefore its electrical and thermal conductivity is higher than TP2. TP1 and TP2 are mainly used in pipe applications, but can also be supplied as plates, strips, bars, or wires. Applications include gasoline or gas transmission pipes, drainage pipes, condenser pipes, mine casing pipes, condensers, evaporators, heat exchangers, and train car parts.
Chemical Composition
|
Copper+Silver With Ag: |
Tin Sn: |
Zinc Zn: |
Lead Pb: |
Nickel It is: |
Iron Fe: |
|
≥ 99.90 |
≤ 0.002 |
≤ 0.005 |
≤ 0.005 |
≤ 0.005 |
≤ 0.01 |
|
Antimony Sb: |
Sulphur S: |
Arsenic As: |
Bismuth Bi: |
Oxygen O: |
Phosphorus P: |
|
≤ 0.002 |
≤ 0.005 |
≤ 0.002 |
≤ 0.002 |
≤ 0.01 |
0.005～0.012 |
Mechanical Properties
|
Tensile Strength Kb (MPa): |
Elongation D10 (%): |
Hardness: |
|
245～345 |
≥ 8 |
75～120HV |
C120 Copper Annealed Tube Physical Properties
| Typical values in annealed temper at 20 °C | |||
|---|---|---|---|
| Thermal expansion coefficient | 20 .. 300 °C | 17.3 | 10-6/K |
| Density | 8.94 g/cm³ | ||
| Thermal conductivity | 375 | W/(m·K) | |
| Specific heat capacity | 0.386 J/(g·K) | ||
| Modulus of elasticity | GPa | 130 | GPa |
| Electrical conductivity | IACS | 95 % | |
| Electrical conductivity | MS/m | 55 | MS/m |
| Thermal coefficient of electrical resistance | (0 .. 100 °C) | 3.6 | 10-3/K |
C12000 vs C11000
| Feature | UNS C12000 | UNS C11000 (ETP Copper) |
|---|---|---|
| Common Name | Phosphorus Deoxidized, Low P (DLP) | Electrolytic Tough Pitch Copper |
| Key Composition | Cu ≥99.90%, P added (0.004-0.012%) | Cu ≥99.90%, Oxygen present (0.02-0.04%) |
| Oxygen Content | Very Low | Intentional (~0.03%) |
| Electrical Conductivity | Very High (~100% IACS) | The Reference Standard (101% IACS) |
| Thermal Conductivity | Very High | Very High |
| Formability & Ductility | Excellent | Excellent |
| Weldability & Brazability | Excellent | Poor / Not Recommended |
| Resistance to Hydrogen Embrittlement | Poor (in reducing atmospheres) | Very Poor ("Hydrogen Disease") |
| Workability at High Temp | Good | Poor (Hot Shortness) |
| Typical Applications | Busbars, tubing, heat exchangers | Electrical wire, cable, non-welded components |
Choose C11000 (ETP Copper) when:
Your application is simple electrical conductivity (e.g., wire, cable, non-welded busbars, windings).
You require the absolute lowest cost for a high-conductivity copper.
The part will NOT be welded, brazed, or heated above 370°C in service or fabrication.
It will never be exposed to reducing atmospheres (e.g., hydrogen, carbon monoxide).
Choose C12000 (DLP Copper) when:
The component requires any form of welding or high-temperature brazing.
You need good hot workability (forging, hot forming) without "hot shortness."
You are fabricating a complex assembly where joining is necessary, but still require near-maximum conductivity.
Your application involves heated parts, even if not joined (safer against hydrogen embrittlement than C11000).
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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