Solid Copper Wire

Solid Copper Wire is a fundamental electrical conductor widely used in residential, commercial, and industrial installations due to its excellent electrical conductivity, mechanical strength, and long service life. Manufactured from high-purity electrolytic copper, it provides stable current flow, low resistance, and reliable performance in fixed wiring systems.

Solid Copper Wire is available in multiple standardized types and constructions, most commonly as single-core solid conductors with PVC, XLPE, or LSZH insulation. Common international designations include NYA, THHN/THWN, and building wires compliant with IEC, VDE, BS, and ASTM standards. Wire sizes are specified by cross-sectional area in mm² or by AWG, covering a wide range from small control wiring to heavy-duty power distribution. Solid copper wire is mainly used for permanent installations such as building wiring, lighting circuits, power outlets, control panels, switchboards, grounding systems, and conduit installations. Technically, it offers excellent thermal stability, strong insulation adhesion, low voltage drop, and high resistance to corrosion and oxidation. Compared to stranded conductors, solid copper wire ensures better terminal contact, reduced movement, and higher durability in fixed applications where flexibility is not required.

It is possible to supply solid copper wire in coils, spools, or compact rolls, typically packed in cartons, shrink-wrapped bundles, or wooden drums for larger cross sections. Standard lengths include 50 m, 100 m, 200 m, and customized industrial reels for project supply. With consistent conductivity, precise diameter control, and compliance with electrical safety standards, solid copper wire remains a trusted and cost-effective solution for reliable electrical infrastructure across construction, utilities, and industrial sectors

Solid Copper Wire from top Iranian manufacturers

No.	Specification	Typical / Available Range
1	Conductor Material	High-Purity Electrolytic Copper (≥99.9% Copper)
2	Wire Type	Solid / Single-Core Copper Conductor
3	Wire Diameter Range	Approx. 0.10 mm – 10.00 mm
4	Electrical Conductivity	≥58 MS/m (International Annealed Copper Standard – IACS)
5	Copper Grade	Electrolytic Tough Pitch (ETP) Copper or Oxygen-Free Copper (OFC)
6	Surface Finish	Smooth, Clean, and Oxide-Free Surface
7	Temper / Hardness	Soft Annealed, Half Hard, or Hard Temper
8	Tensile Strength	Depends on Diameter and Temper Selection
9	Standards	ASTM B3, ASTM B49, IEC 60228, or Equivalent Standards
10	Applications	Electrical Wiring, Earthing, Transformers, Motors, Coils, Busbars, and Industrial Electrical Equipment

to supply based on your specific applications please contact us.

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FAQ Solid Copper Wire

Solid copper wire consists of a single continuous copper conductor and is commonly used for fixed electrical installations and applications requiring rigidity.

It offers excellent electrical conductivity, stable electrical performance, mechanical strength, and generally lower cost than stranded wire.

Typical applications include building wiring, electrical installations, grounding, control systems, and other fixed or low-flex applications.

Solid wire has one copper conductor and is more rigid, while stranded wire contains multiple fine strands and provides greater flexibility for applications involving bending or vibration.

Select the wire size according to required current capacity, installation conditions, allowable voltage drop, and applicable electrical standards.