| Customization: | Available |
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| Color: | Copper |
| Strength Grade: | Medium (Half-Hard) |
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Our CuSn03 Copper Alloy Wire is a high-performance tin bronze alloy containing approximately 0.3% tin, offering enhanced strength, formability, and good electrical conductivity. It is widely used in precision electrical and electronic applications that demand durability and corrosion resistance without compromising conductivity.
Excellent mechanical strength with good electrical performance
High dimensional stability and fatigue resistance
Lead-free and RoHS compliant
Good forming and soldering characteristics
Electrical connectors and terminals
Switch contacts and spring components
Automotive electronics
Precision stamped parts and shielding elements
Complies with ASTM C14425 / C18835 and international standards
Mechanical, chemical, and electrical testing before shipment
ISO-certified production and material traceability
RoHS/REACH environmental compliance
Plastic or wooden spools
Coils with moisture-proof wrapping
OEM custom packaging available on request
| Item | CuSn015 | CuSn03 | CuSn06 | CuSn07 | CuSn135 | CuSn4 |
| Tin Content (Sn%) | Approx. 0.15% | Approx. 0.3% | Approx. 0.6% | Approx. 0.7% | Approx. 1.35% | Approx. 4.0% |
| Standards | CW117C / C14415 | C14425 / C18835 | - | - | - | CW452K / C51900 |
| Wire Diameter | 0.05mm - 3.00mm | 0.05mm - 3.00mm | 0.05mm - 3.00mm | 0.05mm - 3.00mm | 0.05mm - 3.00mm | 0.10mm - 3.50mm |
| Conductivity | ≥ 80% IACS | ≥ 75% IACS | ≥ 70% IACS | ≥ 70% IACS | ≥ 65% IACS | ≥ 50% IACS |
| Tensile Strength | 300-500 MPa | 320-520 MPa | 350-550 MPa | 350-560 MPa | 380-580 MPa | 420-600 MPa |
| Hardness | 80-150 HV | 90-160 HV | 100-170 HV | 100-175 HV | 110-180 HV | 120-200 HV |
| Available Tempers | Annealed / 1/2H / Full H | Same as left | Same as left | Same as left | Same as left | Same as left |
| Surface Finish | Bright / Tin Coated | Bright / Tin Coated | Bright / Tin Coated | Bright / Tin Coated | Bright / Tin Coated | Bright / Tin Coated |
| Applications | Connectors, Springs | Terminals, Contacts | Electronic Components | Switch Pins, Clips | Automotive Connectors | High-Strength Contacts |
| Packaging | Spools, Coils, Custom | Same as left | Same as left | 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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