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Soft Bare Copper

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Bare Copper Conductors
STANDARDS
National : Factory standard
DESCRIPTION
ASTM B-3 Soft or Annealed Copper Wire. ASTM B-3 Specification details the requirements for solid wires and the individual wires in stranded conductors.

ASTM B-8 Concentric - Lay - Stranded Copper Conductors

Solid or stranded 100% conductivity copper conductors.

 

APPLICATION

Used for bonding and grounding electrical circuits and systems.

 

SOFT DRAWN BARE COPPER  
Size  AWG or   kcmil Nominal Diameter Approximate  Conductor Weight Nominal D.C.  Resistance  @ 25°C  
 
 
mm in kg/km lbs/kft Ω/km Ω/kft  
14 (1) 1.63 0.064 18.5 12.4 8.44 2.57  
12 (1) 2.05 0.081 29.4 19.8 5.31 1.62  
10 (1) 2.59 0.102 46.8 31.4 3.34 1.02  
8 (7) 3.61 0.142 75.9 51 2.14 0.653  
6 (7) 4.55 0.179 121 81.1 1.35 0.411  
4 (7) 5.72 0.225 192 129 0.848 0.258  
2 (7) 7.19 0.283 305 205 0.533 0.163  
1 (19) 7.95 0.313 385 258 0.423 0.129  
1/0 (19) 8.94 0.352 485 325 0.335 0.102  
2/0 (19) 10.03 0.395 611 410 0.266 0.081  
3/0 (19) 11.25 0.443 771 518 0.211 0.064  
4/0 (19) 12.65 0.498 972 653 0.167 0.051  
250 (37) 13.77 0.542 1149 772 0.142 0.043  
300 (37) 15.09 0.594 1378 926 0.118 0.036  
350 (37) 16.28 0.641 1609 1081 0.101 0.031  
400 (37) 17.4 0.685 1838 1235 0.088 0.027  
500 (37) 19.46 0.766 2298 1544 0.071 0.021  
600 (61) 21.34 0.84 2758 1853 0.059 0.018  
750 (61) 23.85 0.939 3447 2316 0.047 0.014  
1000 (61) 28.37 1.117 4595 3088 0.035 0.011  
* ASTM B-3  Specification details the requirements for solid wires and the individual wires in stranded conductors.