Copper Alloy Wire Cumg05 C18665 High Strength Copper Magnesium Wire

Product Description

Product Description

CuMg05 Copper Alloy Wire, containing approximately 0.5% magnesium, provides superior mechanical strength and stable conductivity. Recognized under the C18665 standard, it is widely used in high-reliability electrical systems, especially where durability under thermal and mechanical stress is required.

 

Key Features

• Electrical conductivity ≥ 75% IACS

• High tensile strength and hardness

• Excellent resistance to fatigue, oxidation, and creep

• RoHS and REACH compliant

• Excellent workability for forming and soldering

 

Applications

• Automotive and railway connectors

• High-performance electrical terminals

• Signal and control wiring systems

• Industrial equipment wiring

• Coils, relays, and electronic contact parts

 

Quality Assurance

• Conforms to ASTM C18665

• Full mechanical and electrical testing per batch

• ISO 9001 certified manufacturing

• RoHS / REACH environmental compliance

 

Packaging Options

• Plastic spool for precision wire

• Wooden reel or coil for industrial lengths

• Moisture-proof and export-safe wrapping

• Custom packaging available upon request

Detailed Photos

Product Parameters

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

Certifications

Packaging & Shipping

Company Profile

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.
 

Our Advantages

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.
 

After Sales Service

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:

• Test report
• Production line videos
• Customs clearance updates

4. Risk-Free Trial
Test samples in your application for 90 days - we cover return shipping if unsatisfied.