U.C. Metal supplies high-conductivity pure copper and phosphorus-deoxidized copper coils and sheets for electrical, electronic, and industrial engineering applications. Available in precision slit strip coils and flat sheets tailored to stamping and component manufacturing requirements.
Primary Copper Grades
JIS C1100 (Tough-Pitch), JIS C1220 (Phosphorus-Deoxidized), JIS C1221, JIS C1020 (OFC)
Available Tempers
Annealed (O), 1/4H, 1/2H, H (Hard) based on formability and hardness requirements
Available Dimensions
Strip: 0.01 mm – 3.0 mm (Width: 4 mm – 1220 mm) · Sheet: 0.2 mm – 3.0 mm (up to 1220 × 3500 mm)
Chemical Composition
Chemical composition limits according to verified company technical specifications (values in weight %):
| Element | C1100 | C1220 | C1221 |
|---|---|---|---|
| Copper (Cu) | ≥ 99.90 % | ≥ 99.90 % | ≥ 99.75 % |
| Phosphorus (P) | — | 0.015 ~ 0.04 % | 0.004 ~ 0.04 % |
* C1020 (Oxygen-Free Copper) is also available with Cu ≥ 99.96% for hydrogen embrittlement-free electrical and vacuum applications.
Mechanical Properties & Hardness (Temper) Guide
Hardness ranges across standard temper conditions:
| Temper Designation | C1100 | C1220 | C1221 |
|---|---|---|---|
| Annealed (O) | ≤ 60 | 50 ~ 65 | 50 ~ 65 |
| 1/4H | 60 ~ 80 | 60 ~ 90 | 60 ~ 90 |
| 1/2H | 80 ~ 100 | 85 ~ 105 | 85 ~ 105 |
| H (Hard) | 100 ~ 130 | ≥ 100 | ≥ 100 |
* Values represent Vickers Hardness (HV) from technical records. Tensile properties and electrical conductivity certifications can be confirmed upon enquiry.
International Standards Reference
JIS is the primary organizing standard for our copper materials (JIS C1100, C1220, C1221, and C1020). Comparable international standard designations (such as ASTM/UNS, ISO, or GB equivalents) can be confirmed upon enquiry.
Supply Dimensions & Available Formats
- Strip / Slit Coil: Thickness: 0.01 mm – 3.0 mm · Width: 4 mm – 1220 mm · Inner Diameter (ID): 200 mm, 300 mm, 400 mm, 500 mm.
- Sheet / Plate: Thickness: 0.2 mm – 3.0 mm · Width: up to 1220 mm · Length: up to 3500 mm.
- Custom Processing: In-house slitting and cut-to-length processing available at our Sam Phran facility according to customer specifications.