What is Premium Copper Bar C11000 C12000 Rod?
C11000 is cathode remelted copper, which has high electrical and thermal conductivity, good corrosion resistance and machining properties, and can be fused and brazed.
C11000 is mainly used for conductive, thermal and corrosion resistant components, such as wires and cables, conductive screws, housing and various conduit and aviation industry.
C12000 phosphorus deoxidized copper has good welding performance and cold bending performance, and generally has no "hydrogen disease" tendency. It can be processed and used in reducing atmosphere, but it is not suitable for processing and use in oxidizing atmosphere. The residual phosphorus content of C12000 is less than that of C12200, so its electrical and thermal conductivity is higher than that of C12200. C12000 and C12200 are mainly applied in tubing, but can also be supplied in plate, tape or rod, wire. Used as gasoline or gas delivery pipe, drain pipe, condensing pipe, mine pipe, condenser, evaporator, heat exchanger, train box parts.
Get C12000/C11000 Copper Spec Sheet
Chemical composition
|
Alloy |
Chemical Composition |
||||
|
QB |
JIS /ASTM |
Cu |
P |
O |
Other |
|
T2 |
JIS C1100 |
99.9 |
0.015-0.040 |
- |
balance |
|
TU |
ASTM C10300 |
99.95 |
0.001-0.005 |
- |
balance |
|
TP1 |
JIS C1220 |
99.9 |
0.004-0.012 |
- |
balance |
Mechanical property
|
Grade(China) |
Grade(Japan) |
Temper |
Vickers Hardness (HV) |
Tensile strength(Mpa) |
Elongation(%) |
|
T2/T3/TP1/TP2 |
C11000/C1201 |
M |
- |
≥290 |
≥40 |
|
C1220.etc. |
Y4 |
75-125 |
325~410 |
≥35 |
|
|
Y2 |
85-145 |
340~460 |
≥25 |
||
|
Y |
105-175 |
390~530 |
≥13 |
||
|
T |
- |
≥490 |
- |
C11000 vs. C12000 Copper Rods
| Feature | C11000 - ETP Copper (Electrolytic Tough Pitch) | C12000 - DHP Copper (Phosphorus Deoxidized, Low Residual P) |
|---|---|---|
| Primary Alloying Element | Oxygen (0.02% - 0.04%) | Phosphorus (0.004% - 0.012%) |
| Copper Content | ≥ 99.90% Cu | ≥ 99.90% Cu |
| Key Defining Trait | Contains intentional oxygen. | Oxygen-free; phosphorus is used to remove oxygen. |
| Electrical Conductivity | Excellent. The benchmark at ~101% IACS. | High, but lower than C11000. ~85-90% IACS. Phosphorus reduces conductivity. |
| Thermal Conductivity | Excellent | Very Good (slightly lower than C11000) |
| Weldability & Brazability | Poor. Susceptible to hydrogen embrittlement in reducing atmospheres (e.g., hydrogen brazing). Oxygen reacts with hydrogen, causing internal cracks. | Excellent. The preferred choice for welding & brazing. No oxygen means no risk of hydrogen embrittlement. |
| Hot & Cold Workability | Excellent | Excellent |
| Common End-Use Applications (for Rods) | • Electrical Conductors: Bus bars, switchgear, terminals. • Forged components. • Non-welded heat exchanger parts. (Where max conductivity is critical and no high-temp welding is needed.) |
• Plumbing & HVAC fittings (for brazing/soldering). • Welded assemblies & fabrications. • Refrigeration tubing & components. • Systems where weld integrity is key. |
How to Choose Between Them for a Rod Application
Choose C11000 Rod if: Your primary requirement is maximum electrical or thermal conductivity, and the rod will NOT be subjected to high-temperature operations like welding, brazing, or annealing in a reducing atmosphere. It's the classic choice for pure electrical conduction.
Choose C12000 Rod if: The rod needs to be welded, brazed, or soldered reliably, or will be used in an assembly where these processes occur. It sacrifices a small amount of conductivity for vastly superior joining characteristics and safety in heated service.
Inquire about C12000/C11000 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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