1. 🧾 Material Overview
Electrolytic Copper 2.0060, also known by its international designation Cu-ETP R300, is a high-purity, oxygen-containing copper material widely recognized for its excellent electrical conductivity, thermal conductivity, and good formability. The abbreviation ETP stands for Electrolytic Tough Pitch, indicating the refining process and oxygen content (~0.04%).
This copper grade is standardized under EN CW004A, DIN 2.0060, and UNS C11000, making it one of the most commonly used technical coppers in the manufacturing industry. It is primarily used in electrical and thermal applications where high conductivity is paramount. ⚡
2. 🧪 Chemical Composition and Property Correlation
| Element | Typical Content (%) |
|---|---|
| Cu | ≥ 99.90 |
| O₂ | 0.02–0.04 |
The high copper content directly contributes to its outstanding electrical conductivity—often reaching ≥ 101% IACS (International Annealed Copper Standard). The trace oxygen level improves castability and polishability, but it may influence weldability and hydrogen embrittlement in certain atmospheres.
Key material correlations:
- High Cu content → Superior electrical and thermal conductivity
- Oxygen presence → Improved surface finish in drawn wires but risk of hydrogen embrittlement in reducing environments
🧠 Note for designers: If your application involves exposure to hydrogen or high-vacuum environments, consider switching to oxygen-free high-conductivity copper (OFHC) like Cu-OF (CW008A).
3. 🛠️ Machinability and Processing Adaptability
Cu-ETP R300 is readily machinable, though it is considered soft and ductile, which can lead to built-up edge (BUE) issues during machining.
| Property | Rating / Value |
|---|---|
| Machinability (vs. free-cutting brass) | ~20–30% |
| Formability | Excellent |
| Weldability | Limited (avoid hydrogen-containing environments) |
| Soldering & Brazing | Excellent |
| Cold working | Very good |
💡 Tips for machining Electrolytic Copper 2.0060:
- Use sharp carbide tools with high rake angles
- Apply coolant liberally to avoid material smearing
- Moderate cutting speeds with higher feed rates work best
- Avoid dry machining to reduce tool wear and friction heat
This grade also lends itself well to drawing, bending, stamping, and spinning, making it highly suitable for both sheet metal and wire-based components.
4. 🌡️ Physical Properties & Environmental Suitability
| Property | Value |
|---|---|
| Electrical Conductivity | ≥ 101% IACS (58 MS/m) |
| Thermal Conductivity | ~390–400 W/m·K |
| Density | 8.94 g/cm³ |
| Melting Point | ~1083°C |
| Tensile Strength (Annealed) | ~200 MPa |
| Elongation | ≥ 40% (annealed condition) |
Thanks to its excellent conductivity and formability, Electrolytic Copper 2.0060 is especially suitable for:
- Low-voltage and high-voltage electrical systems
- Heat exchangers and busbars
- Connectors and terminals in moderate mechanical load environments
⚠️ It is not recommended for use in vacuum systems or hydrogen-rich atmospheres, due to the risk of hydrogen embrittlement caused by its oxygen content.
5. 🏭 Typical Application Fields
Cu-ETP R300 is widely used across multiple industries, especially where electrical or thermal performance is a priority. Common applications include:
🔌 Electrical and Electronics
- Power distribution busbars
- Electrical switchgear
- Motor and generator windings
- PCB components and connectors
🔥 Thermal Systems
- Heat sinks and exchangers
- Industrial furnace parts
- Radiator components
🔩 Mechanical and Industrial Components
- Clamps, terminals, and lugs
- High-performance sealing rings
- EMI shielding in sensitive devices
Its excellent balance of conductivity, workability, and availability makes it a favorite choice for mechanical design engineers working on electromechanical assemblies.
6. 🧩 Integrated Performance Advantages
✅ Electrical Excellence: One of the highest conductivity copper grades in commercial use
✅ Thermal Efficiency: Ideal for components requiring rapid heat dissipation
✅ Formability: Outstanding cold-forming ability for wire drawing and stamping
✅ Surface Quality: Smooth surface after drawing or polishing
✅ Availability: Easily sourced in rod, plate, strip, tube, and wire forms
✅ Cost-Efficiency: More affordable than exotic copper alloys while offering top-tier performance
🤔 Compared to alternatives like Cu-OF (oxygen-free copper), Cu-ETP offers similar conductivity but at a lower cost, making it more attractive for general-purpose electrical systems that don’t operate under vacuum or hydrogen exposure.
7. 📌 Conclusion
Electrolytic Copper 2.0060 / Cu-ETP R300 remains a cornerstone material for electrical and thermal engineering. Its outstanding conductivity, good mechanical properties, and excellent processing characteristics make it a go-to choice for mechanical designers working on electrical infrastructure, industrial controls, and power systems.
While there are limitations—particularly related to hydrogen embrittlement and vacuum compatibility—these are manageable with proper application awareness.
🔧 For designers aiming to balance performance, workability, and cost, Cu-ETP R300 continues to be a trusted material—solid, conductive, and dependable. ⚙️
Established in 2018, Super-Ingenuity Ltd. is located at No. 1, Chuangye Road, Shangsha, Chang’an Town, Dongguan City, Guangdong Province — a hub of China’s manufacturing excellence.
With a registered capital of RMB 10 million and a factory area of over 10,000 m2, the company employs more than 100 staff, of which 40% are engineers and technical personnel.
Led by General Manager Ray Tao (陶磊 ), the company adheres to the core values of “Innovation-Driven, Quality First, Customer-Centric” to deliver end-to-end precision manufacturing services — from product design and process verification to mass production.
Advanced Digital & Smart Manufacturing Platform
Online Instant Quoting: In-house developed AI + rule engine generates DFM analysis, cost breakdown, and process suggestions within 3 minutes. Supports English / Chinese / Japanese.
MES Production Execution: Real-time monitoring of workshop capacity and quality. Automated SPC reporting with CPK ≥1.67.
IoT & Predictive Maintenance: Key machines connected to OPC UA platform for remote diagnostics, predictive upkeep, and intelligent scheduling.
Fast Turnaround & Global Shipping Support
| Production Cycle | Metal parts: 1–3 days; Plastic parts: 5–7 days; Small batch: 5–10 days; Urgent: 24 hours | | Logistics Partners | UPS, FedEx, DHL, SF Express — 2-day delivery to major Western markets |
Sustainability & Corporate Responsibility
Energy Optimization: Smart lighting and HVAC systems
Material Recycling: 100% of aluminum and plastic waste reused
Carbon Neutrality: Full emissions audit by 2025; carbon-neutral production by 2030
Community Engagement: Regular training and environmental initiatives
Official website address：https://super-ingenuity.cn/
