| Customization: | Available |
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| Color: | Copper |
| Strength Grade: | Medium (Half-Hard) |
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CuSn135 Copper Alloy Wire is a high-performance tin bronze alloy containing approximately 1.35% tin. This alloy offers enhanced mechanical strength and moderate conductivity, making it ideal for precision electronic applications requiring excellent formability, corrosion resistance, and fatigue strength.
High tensile strength and hardness
Good electrical conductivity (≥65% IACS)
Excellent fatigue and corrosion resistance
Lead-free and RoHS-compliant
Suitable for micro-precision stamping and forming
Electronic connectors and spring contacts
Automotive terminals and sensors
Signal and power transmission components
Micro switches and relays
High-cycling mechanical parts
Compliant with international standards (chemical & mechanical)
Full QC including tensile, conductivity & dimension tests
ISO 9001 quality system certified
RoHS / REACH environmental compliance
Fine wire on plastic spools
Larger wire in coils or wooden reels
Anti-moisture and shock-resistant wrapping
Custom labeling and OEM packaging available
| 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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