Aluminum Clad Steel Wire (ACS), also known as Aluminum-Clad Steel Conductor Wire or ACS Wire, is a high-performance bimetallic wire consisting of a high-strength steel core metallurgically bonded with a thick, uniform layer of aluminum. This advanced cladding technology combines the superior tensile strength and fatigue resistance of steel with the excellent conductivity and corrosion resistance of aluminum, making it the ideal core material for ACSR/AW conductors, grounding wires, and optical fiber composite overhead ground wires (OPGW).
As a trusted manufacturer with over 30 years of experience in producing aluminum clad steel wire, RLB delivers consistent quality, precise dimensional control, and outstanding long-term performance for demanding overhead transmission applications.
Key Applications
Aluminum Clad Steel Wire is widely used in:
- ACSR/AW (Aluminum Conductor Steel Reinforced with Aluminum-Clad Steel) conductors for long-span high-voltage transmission lines
- Overhead grounding conductors and earth wires
- Optical Fiber Composite Overhead Ground Wire (OPGW) as the central strength member
- Extra-high-voltage (EHV) and ultra-high-voltage (UHV) overhead lines requiring high tensile strength and low sag
Its excellent corrosion resistance and mechanical properties make it particularly suitable for coastal, industrial, high-pollution, and heavy-loading environments.
Outstanding Advantages
- Over 30 years of manufacturing and exporting experience
- Wide range of conductivity grades: 14%, 20.3%, 23%, 27%, 30%, 35%, 40% IACS to meet different electrical and mechanical requirements
- Diameter range: 1.85 mm to 4.77 mm
- Superior appearance with higher tensile strength and extremely stable quality
- Uniform aluminum cladding thickness for excellent corrosion protection and conductivity
- Customizable packing methods and sizes to suit customer production needs
Manufacturing Standards
Fully compliant with major international specifications:
- IEC 61232
- ASTM B 502
- ASTM B 415
- AS 1222.2
Technical Specifications (20.3% IACS Conductivity – IEC 61232 20SA)
| Parameter | Typical Value | Test Condition / Standard |
|---|
| Diameter Range | 1.85 mm – 4.77 mm | Precision drawing |
| Conductivity Grades | 14% – 40% IACS | IEC 61232 |
| Tensile Strength | 1,340–1,860 MPa | ASTM B502 |
| Aluminum Cladding Thickness | 0.5–1.0 mm (typical) | Metallurgical bonding |
| Breaking Load | 40–300 kN (grade dependent) | ASTM B502 |
| Corrosion Resistance | Superior | Salt spray and humidity test |
| Surface Finish | Smooth & uniform | Visual and dimensional inspection |
| Standards | IEC 61232, ASTM B502, ASTM B415, AS 1222.2 | International compliance |
(Custom conductivity grades, diameters, and cladding thicknesses available upon request.)
Packaging
Supplied on high-quality plywood drums, wooden drums, or steel drums for safe transportation, storage, and efficient feeding into high-speed stranding machines. Custom packaging sizes and methods are available upon request.
Aluminum Clad Steel Wire (ACS) from RLB provides the perfect balance of mechanical strength, electrical conductivity, and long-term corrosion resistance, making it the preferred core solution for modern ACSR/AW conductors, OPGW, and high-reliability grounding systems in overhead power infrastructure.
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