| Customization: | Available |
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| Color: | Copper |
| Strength Grade: | Medium (Half-Hard) |
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CuMg07 Copper Alloy Wire, with a magnesium content of approximately 0.7%, is a high-performance copper alloy offering exceptional tensile strength and good electrical conductivity. Known as C15500 (ASTM) or CW127C (EN), it is ideal for demanding electrical applications involving mechanical stress, heat, and vibration.
Electrical conductivity ≥ 70% IACS
Tensile strength up to 550 MPa
Excellent fatigue and creep resistance
Superior heat resistance and dimensional stability
RoHS and REACH compliant, lead-free
Automotive and EV electrical systems
High-temperature connectors and terminals
Signal transmission in rail and aerospace systems
Industrial control wiring
Power modules and coil windings
Meets CW127C / C15500 technical specifications
In-house testing for conductivity, mechanical strength, elongation
ISO 9001 certified production
RoHS / REACH environmental certifications
Precision spools for fine wire
Wooden reels or coils for large quantities
Vacuum-sealed or moisture-proof packaging
OEM labeling and export packaging available
| Item | CuMg02 | CuMg04 | CuMg05 | CuMg07 |
| Magnesium Content | ~0.2% Mg | ~0.4% Mg | ~0.5% Mg | ~0.7% Mg |
| Standards | C18661 | - | C18665 | CW127C / C15500 |
| Wire Diameter | 0.05mm - 3.00mm | 0.05mm - 3.00mm | 0.05mm - 3.00mm | 0.10mm - 3.50mm |
| Tensile Strength | 360-440 MPa | 400-480 MPa | 450-520 MPa | 480-550 MPa |
| Conductivity | ≥ 85% IACS | ≥ 80% IACS | ≥ 75% IACS | ≥ 70% IACS |
| Hardness | 90-120 HV | 100-130 HV | 110-140 HV | 120-150 HV |
| Temper | Annealed / Hard | Annealed / Hard | Annealed / Hard | Annealed / Hard |
| Surface Finish | Bright / Tin-Coated | Bright / Tin-Coated | Bright / Tin-Coated | Bright / Tin-Coated |
| Corrosion Resistance | Good | Good | Excellent | Excellent |
| Applications | Signal Cables, Electronics | Connectors, Relays | Spring Contacts, Terminals | Automotive & Industrial Wiring |
| Packaging | Plastic Spool / Coil / Reel | Same as left | Same as left | Same as left |
Mosstee specializes in high-performance conductor materials, including silver-plated copper wire, nickel-plated copper wire, copper-clad aluminum, copper-clad steel, and aluminum alloy cables, widely used in power, telecommunications, automotive, and new energy industries.
1. Three Decades of Specialized Expertise
As a pure-play wire & cable manufacturer since 1990, we deliver precisely engineered solutions for industrial, energy, and infrastructure applications.
2. Certified Quality Assurance
All products meet UL, CE, and RoHS standards, with ISO 9001-certified manufacturing ensuring 99.97% defect-free delivery across 50+ countries.
3. Eco-Conscious Production
REACH-compliant materials reduce carbon footprint by 30% vs industry average, with 85% recyclable product designs.
Service Excellence
1. 24/7 Technical Support
Dedicated engineers on-call for urgent troubleshooting, with <3hr response time for critical infrastructure projects.
2. Customization from Blueprint to Delivery
• Prototype development in 10-14 days
• Minimum Order Quantity (MOQ) as low as 50 kgs
• OEM/ODM compliant with NEC, IEC & EN standards
3. Transparent Project Management
Assigned account managers provide weekly progress reports with:
4. Risk-Free Trial
Test samples in your application for 90 days - we cover return shipping if unsatisfied.
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