Copper Strip for Cable Armoring
Premium copper strip for cable armoring with excellent conductivity and EMI shielding performance. Available in C11000, C10100, and tin-plated options. Custom thickness and width supported for power and communication cables.
- Grades:T2, TU1, H68, H65
- Thickness:0.10 – 1.00 mm
- Width:15 – 300 mm
- Conductivity:≥100% IACS
Copper strip for cable armoring is a functional material made from high-purity copper through precision rolling, annealing, and surface treatment processes. It is mainly used for shielding and armoring layers in power cables, control cables, and communication cables.
With outstanding electrical conductivity, excellent electromagnetic shielding performance, and superior corrosion resistance, copper strip is widely used in high-end cable systems—especially in applications requiring high signal stability, electromagnetic compatibility (EMC), and safety.
Common Copper Grades
| Grade | Code | Main Composition | Features & Applications |
| T2 | C11000 | Cu ≥ 99.90% | Electrolytic tough pitch copper. Excellent electrical and thermal conductivity (≥100% IACS), strong corrosion resistance. Widely used in power cable shielding and armoring. |
| TU1 | C10100 | Cu ≥ 99.97% (oxygen-free) | Oxygen-free copper with ultra-high purity, no hydrogen embrittlement. Suitable for high-end cables requiring superior conductivity and density. |
| H68 | C26200 | Cu 67.0–70.0%, Zn balance | Brass with excellent plasticity and formability, ideal for deep drawing or complex bending components. |
| H65 | C27000 | Cu 63.5–68.0%, Zn balance | Brass with balanced strength and ductility, cost-effective, widely used in electrical components and cable protection. |
Armoring copper strips are primarily made from T2/TU1 copper and H68/H65 brass, with chemical compositions strictly controlled according to relevant standards.
Technical Specifications
| Item | Specification |
| Grades | T2, TU1, H68, H65 |
| Temper | M (soft), Y2 (half-hard), Y (hard) |
| Thickness | 0.10 – 1.00 mm (common: 0.20 / 0.30 / 0.50 mm) |
| Width | 15 – 300 mm (customizable) |
| Thickness Tolerance | ±0.005 mm (≤0.30 mm) / ±0.008 mm (>0.30 mm) |
| Width Tolerance | ±0.05 mm (≤100 mm) / ±0.10 mm (>100 mm) |
| Tensile Strength | M: 205–260 MPa / Y2: 245–300 MPa |
| Elongation | M: ≥30% / Y2: ≥15% |
| Conductivity | ≥100% IACS |
| Density | 8.89–8.94 g/cm³ |
| Inner Diameter | 150 / 200 / 300 / 400 mm |
| Outer Diameter | ≤1200 mm |
Typical Cable Applications
| Cable Type | Description | Recommended Copper Strip Size |
| YJV22 / VV22 | XLPE/PVC insulated power cables with armoring | 0.20 / 0.30 mm × (15–80 mm) |
| KVV22 | PVC insulated control cables | 0.20 / 0.30 mm × (15–60 mm) |
| DJYP2V32 | Computer cables with copper tape shielding | 0.10 / 0.15 mm × (10–40 mm) |
| MKVVP2-22 | Mining control cables with copper shielding | 0.20 mm × (15–50 mm) |
Key Advantages
Strong Mechanical Protection:
Effectively resists pressure, tension, and mechanical damage, enabling direct burial and use in harsh environments.Excellent Shielding Performance:
High conductivity ensures superior electromagnetic shielding, reducing interference and preventing signal leakage.Protection Against Biological Damage:
Metal armoring prevents damage from termites, rodents, and other external threats.Outstanding Corrosion Resistance:
Natural oxide layer resists atmospheric, freshwater, soil, and mild chemical corrosion—2–3 times longer lifespan than galvanized steel.High Thermal Stability:
Operating temperature range: -50°C to 150°C, maintaining performance in extreme climates.Eco-Friendly & Recyclable:
100% recyclable, compliant with RoHS and REACH standards, free from heavy metal pollution.
Product Types
Bare Copper Strip: For general conductivity and shielding applications
Tin-Plated Copper Strip: Enhanced oxidation resistance and improved solderability, suitable for humid environments
Nickel-Plated Copper Strip: Superior high-temperature and corrosion resistance
Production Process
High-purity copper melting and continuous casting
Hot rolling
Cold rolling (precision thickness control)
Annealing (improves ductility)
Surface treatment (cleaning, plating)
Precision slitting and rewinding
Final inspection and packaging
Advanced equipment and strict process control ensure stable conductivity and high surface quality.
Application Fields
Power cable shielding and armoring
Communication and fiber optic cable shielding
Control and instrumentation cables
High-speed data transmission cables
New energy cables (wind power, photovoltaic)
Rail transit and industrial automation systems
Copper Strip vs. Steel Strip for Armoring
| Property | Copper Strip | Steel Strip | Advantage |
| Material | High-purity copper | Galvanized steel | Non-magnetic, conductive, corrosion-resistant |
| Conductivity / Shielding | 98%–101% IACS, ≥80 dB shielding | Non-conductive | Dual shielding + grounding function |
| Electromagnetic | Non-magnetic, no eddy current loss | Magnetic, high losses | Higher efficiency, no interference |
| Corrosion Resistance | Excellent | Moderate (prone to rust) | 2-3× longer lifespan |
| Flexibility | Excellent (bend radius 5t) | Moderate (10t) | Easier installation |
| Weight | ~8.9 g/cm³ | ~7.85 g/cm³ | Better performance despite weight |
| Application | High-end cables, marine, nuclear | General applications | Preferred for high reliability |
FAQ
Q1: How to choose between copper strip and aluminum strip for cable armoring?
A: Copper strip offers superior conductivity and shielding for high-end applications, while aluminum strip is lighter and more cost-effective for general use.
Q2: Do you supply tin-plated copper strip?
A: Yes, tin plating significantly improves oxidation resistance and weldability.
Q3: Do you support small batch customization?
A: Yes, flexible production can be arranged based on specifications.
Q4: What is the delivery time?
A: Standard specifications: 7–15 days; customized orders depend on quantity.