C10300 Copper Alloy Sheets & Plates
C10300 Copper Sheet & Plate (Oxygen-Free Copper – OF)
C10300 Copper Sheet & Plate, commonly referred to as Oxygen-Free Copper (OF Copper), is a high-purity copper grade with a minimum copper content of 99.95%. It is produced in a controlled environment to minimize oxygen content, making it highly resistant to hydrogen embrittlement.
C10300 offers excellent electrical and thermal conductivity, making it ideal for electrical, electronic, and industrial applications requiring superior performance and reliability.
Key Features
- High purity copper (≥ 99.95%)
- Excellent electrical conductivity
- Superior thermal conductivity
- Resistance to hydrogen embrittlement
- Good corrosion resistance
- Excellent weldability and brazing capability
- High ductility and formability
C10300 Copper – Product Specification
| Parameter | Details |
|---|---|
| Standard | ASTM B152 / ASME SB152 |
| Material | Oxygen-Free Copper (OF) |
| Grade | C10300 |
| UNS Number | C10300 |
| Form | Sheet, Plate |
| Thickness | 0.5 mm to 150 mm |
| Width | Up to 2000 mm |
| Length | Up to 6000 mm |
| Temper | Soft (Annealed), Half Hard, Hard |
Available Sizes
- Thickness: 0.5 mm to 100 mm
- Width: Up to 2000 mm
- Length: Up to 6000 mm or custom cut sizes
- Custom profiles and precision cutting available as per requirement
C10300 Copper – Equivalent Grades
| Standard | Equivalent Grade |
|---|---|
| UNS | C10300 |
| ASTM | C10300 |
| EN | Cu-OF1 |
| DIN | OF-Cu |
| JIS | C1020 |
C10300 Copper – Chemical Composition
| Element | Composition (%) |
|---|---|
| Copper (Cu) | ≥ 99.95 |
| Oxygen (O) | ≤ 0.001 |
| Other Impurities | ≤ 0.05 |
C10300 Copper – Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength | 200 – 300 MPa |
| Yield Strength | ≥ 50 MPa |
| Elongation | ≥ 35% |
| Hardness | 40 – 100 HV |
C10300 Copper – Physical & Electrical Properties
| Property | Value |
|---|---|
| Density | 8.94 g/cm³ |
| Electrical Conductivity | 100 – 101% IACS |
| Thermal Conductivity | 385 – 390 W/m·K |
| Melting Point | 1083°C |
| Coefficient of Expansion | 16.5 µm/m·°C |
Types of C10300 Copper Products
- C10300 Copper Sheets
- C10300 Copper Plates
- Cold Rolled Copper Sheets
- Hot Rolled Copper Plates
- Annealed Copper Sheets
- Precision Cut Copper Plates
Corrosion Resistance
C10300 copper provides excellent resistance to:
- Atmospheric and environmental corrosion
- Freshwater exposure
- Mild chemical environments
It forms a natural oxide layer that protects against further degradation.
Heat Resistance
- Performs efficiently at elevated temperatures
- Maintains conductivity in high-temperature conditions
- Suitable for vacuum and heat-sensitive applications
Heat Treatment
- Supplied mainly in annealed condition
- Annealing temperature: 400°C – 650°C
- Improves ductility and removes internal stresses
- Not heat treatable for hardening
Welding
C10300 copper is easily weldable using:
- TIG (GTAW)
- MIG (GMAW)
- Resistance welding
Preheating is often recommended due to high heat dissipation.
Fabrication
- Excellent for bending, forming, and stamping
- Good machinability
- Suitable for precision cutting and shaping
- Ideal for custom industrial fabrication
Applications
C10300 Copper Sheets & Plates are used in:
- Electrical components and busbars
- Power generation systems
- Heat exchangers
- Electronics and semiconductor equipment
- Vacuum systems
- Aerospace and defense applications
- Industrial machinery
- RF and communication systems