What is C11000 Copper C10100 Copper?
C11000 Copper, also known as electrolytic tough pitch (ETP) copper, is a very pure form of copper, with small oxygen content. It is this copper that is prized for its excellent electrical conductivity and is suitable for use in electrical wires, heat exchangers, and for various other industrial uses that require the highest electrical conductivity.
C10100 Copper, also known as OFE copper, has a higher purity than C11000 resulting in superior electrical conductivity and low resistivity; this copper is typically used for correction plates and mic holes. This type of copper is extremely pliable and has good thermal/electrical conductivity. C10100 Copper is commonly used in electronic tubes, electronic parts, and other high- tech jobs where pure copper is necessary.
What Is the Difference Between C11000 and C10100 Copper in Application?
In industrial applications such as this, the choice of C11000 Copper vs. C10100 Copper depends on what you require for your project. PRICE AND COST analysis) This is a clear advantage, making C11000 Copper the more economical choice when purity is not critical. But C10100 Copper has greater conductivity, and is resistant to rust, so it's better for delicate electronic parts and areas where oxidation is a worry.
Preventing Rust with C11000 vs C10100 Copper
For preventing rust, C10100 copper plate makes a little harder than C11000 Copper due to less oxygen. Copper can oxidize when exposed to oxygen, resulting in rust. Less oxygen in C10100 Copper makes it more corrosion resistant than C11000 Copper.
Deciding On Cost Vs. Effectiveness
When choosing between C11000 Copper and C10100 Copper for industrial purposes, considering the trade offs between cost and the ultimate performance of the metal system is a critical piece of the decision-making process. C11000 Copper is less expensive, though it may not be suitable for applications that require high conductivity and purity. Copper C10100, on the other hand, wins the race but costs more. By assessing your requirements, as well as your budget, you can determine a suitable match for your project.
C11000 and C10100 Copper Pros and Cons
So, what are the differences between C11000 and C10100 copper plates? Which one is more suitable for industrial applications? C11000 copper plates are cheaper, but their conductivity is not as good as C10100 copper plates; however, depending on your application requirements, it may be sufficient. C10100 copper plates offer better performance but are also more expensive.




FAQ
What grade of copper is C1100?
C1100 is the Japanese Industrial Standard (JIS) designation, which is the direct equivalent of the U.S. C11000. Therefore, C1100 is the JIS grade for Electrolytic Tough Pitch copper. The specifications are essentially identical to C11000, with the same high purity, conductivity, and properties.
What is the purity of C11000 copper?
C11000 copper has a minimum copper purity of 99.90%. The primary impurity is a controlled amount of oxygen (typically 0.02% to 0.04%), which is intentionally present to improve castability and workability. The remaining trace elements are strictly limited by specification.
What is the copper equivalent of C11000?
C11000 has direct international equivalents. Key equivalents include: CW003A / CW004A (European EN standard), C1100 (Japanese JIS standard), and Cu-ETP (common ISO designation). All these represent Electrolytic Tough Pitch copper with virtually identical composition and properties.
Is C11000 copper the same as C110?
Yes, they are the same. "C110" is a shortened, colloquial form of the full UNS designation "C11000." In technical documents and procurement, the full "C11000" is preferred, but in everyday industry conversation, "C110" is universally understood to refer to this material.
What is the difference between C11000 and C12200?
The main difference is the deoxidizing element. C11000 (ETP) contains oxygen. C12200 (DHP - Phosphorus Deoxidized) has phosphorus added (0.015-0.040%) to remove oxygen completely. This makes C12200 resistant to hydrogen embrittlement, superior for brazing and welding, and preferred for plumbing tubes and refrigeration applications where oxygen could cause problems.
Product Forms We Can Provide
| Product Category | Material Standards | Common Alloys | Key Specifications (Can be Customized) |
|---|---|---|---|
| Copper Tubes | ASTM B75, B88, B280,B111; EN 12449, 12451; DIN EN 12735; JIS H3300 | C10100 (OFE), C11000 (ETP), C12200 (DHP), C23000, C70600,C71500 | OD: 3mm - 300mm Wall Thickness: 0.5mm - 20mm Temper: Soft (O), Half-Hard (H50), Hard (H80) Form: Straight Lengths, Coils, U-Bends |
| Copper Sheets / Plates | ASTM B152, B248, B248M; EN 1652; DIN 1787; JIS H3100, H3250 | C10100 (OFE), C11000, C10200 (OF), C26000, C86200 | Thickness: 0.3mm - 100mm Width: Up to 1200mm Length: Up to 3000mm (or coils) Surface: Mill, Polished, Brushed |
| Copper Rods / Bars | ASTM B187, B301, B411; EN 12163, 12164; DIN 17672; JIS H3250 | C10100 (OFE), C11000, C14500, C36000, C63000 | Diameter/Rect. Size: 3mm - 300mm Shape: Round, Square, Hexagonal, Rectangular Condition: Drawn, Extruded, Hot Rolled |
| Copper Wires | ASTM B1, B2, B3, B258; EN 13601; IEC 60228; JIS H3100 | C10100 (OFE), C11000, C14420, C14500 | Diameter: 0.1mm - 20mm Temper: Soft, Annealed, Hard-Drawn Form: Bare, Tinned, Stranded, on Spools |
| Copper Foils / Strips | ASTM B103, B370; EN 1652; DIN 1787; JIS H3100 | C10100 (OFE), C10200, C11000, C19400, C26800 | Thickness: 0.02mm - 2.0mm Width: Up to 600mm Temper: Rolled, Annealed |
| CNC Machining Parts | As per Customer Drawing/Req. | All Common Copper Alloys (including C10100, C11000, C86200, etc.) | Process: Turning, Milling, Drilling, Tapping Tolerance: ±0.005mm - ±0.1mm Post-Processing: Deburring, Polishing, Plating |
Our factory




Our manufacturing facility operates a comprehensive and modern production line, equipped with advanced continuous casting, precision rolling, high-speed drawing, and multi-axis CNC machining centers, enabling us to process copper and copper alloys (such as C10100, C11000, C12200, C71500,C70600 etc.) into a full range of products including tubes, sheets, rods, wires, and foils. To ensure top-tier quality, we have implemented a rigorous in-process and final inspection system, utilizing state-of-the-art equipment such as spectrometers for material verification, digital tensile testers for mechanical property checks, precision dimensional gauges, and eddy current or ultrasonic testers for defect detection, guaranteeing that every product meets or exceeds international standards such as ASTM, EN, and JIS, as well as specific customer requirements.





