Engineered for high conductivity, flexibility, and maximum corrosion resistance, 2 AWG 7-Stranded Tinned Bare Copper Wire is the professional choice for heavy-duty electrical grounding, marine power systems, and utility distribution.

This uninsulated soft-drawn copper features a hot-dipped or electroplated tin coating that blocks rust, moisture, and salt-air oxidation. Its 7-strand concentric layout provides superior flexibility for easier bending and pulling compared to stiff solid conductors.

Key Features & Benefits

• Tin-Coated Corrosion Defense: Soft-drawn copper hot-dipped or electroplated with tin to stop oxidation, tarnish, and moisture-induced corrosion in harsh environments.

• 7-Stranded Flexibility: Concentric-lay 7-strand construction makes it easy to bend, route, and terminate compared to stiff solid conductors.

• High-Conductivity Grounding: Delivers 230 Amps allowable ampacity (at 75C conductor temp / 25C ambient) with an ultra-low DC resistance of 0.15780 Ohms per 1,000 ft at 20C.

• Soft-Drawn Annealed Copper: Flexible, easy to work with, and less prone to work-hardening or cracking during installation.

• ASTM & Federal Compliant: Fully meets ASTM B-3, ASTM B-8, ASTM B-33, ASTM B-258, and Federal Spec QQ-W-343 standards.

Technical Specifications

• Wire Size: 2 AWG

• Number of Strands: 7 Strands

• Conductor Material: Soft Drawn / Annealed Copper

• Surface Coating: Hot-Dipped or Electroplated Tin

• Overall Diameter: 0.292 inches

• Net Weight: 204.9 lbs / 1,000 ft

• DC Resistance @ 20C: 0.15780 Ohms / 1,000 ft

• Rated Breaking Strength: 2,110 lbs

• Allowable Ampacity: 230 Amps (Based on 75C conductor temp, 25C ambient, 2 ft/sec wind in sun)

• Compliance Standards: ASTM B-3, ASTM B-8, ASTM B-33, ASTM B-258, Federal Spec QQ-W-343

Common Applications

• Overhead Transmission & Distribution: Used for equipment grounding and bonding overhead utility lines.

• Marine & Outdoor Grounding: Superior defense against saltwater spray, high humidity, and harsh soil chemicals.

• Industrial & Commercial Grounding: Provides a heavy-duty, low-resistance path to ground for main service panels, machinery, and electrical enclosures.

• Substation & Utility Bonding: Delivers high ampacity and robust tensile strength for critical grounding grid networks.

All values are nominal and subject to correction. *Ampacity based on 75C conductor temperature; 25C ambient temperature; 2ft./sec. wind in sun