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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.
Used for bonding and grounding electrical circuits and systems.
Nominal Diameter
ApproximateConductor Weight
Nominal D.C.Resistance @ 25°C
SizeAWG or kcmil
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
51.0
2.14
0.653
6 (7)
4.55
0.179
121.0
81.1
1.35
0.411
4 (7)
5.72
0.225
192.0
129.0
0.848
0.258
2 (7)
7.19
0.283
305.0
205.0
0.533
0.163
1 (19)
7.95
0.313
385.0
258.0
0.423
0.129
1/0 (19)
8.94
0.352
485.0
325.0
0.335
2/0 (19)
10.03
0.395
611.0
410.0
0.266
3/0 (19)
11.25
0.443
771.0
518.0
0.211
4/0 (19)
12.65
0.498
972.0
653.0
0.167
0.051
250 (37)
13.77
0.542
1149.0
772.0
0.043
300 (37)
15.09
0.594
1378.0
926.0
0.118
0.036
350 (37)
16.28
0.641
1609.0
1081.0
0.101
0.031
400 (37)
17.40
0.685
1838.0
1235.0
0.088
0.027
500 (37)
19.46
0.766
2298.0
1544.0
0.071
0.021
600 (61)
21.34
0.840
2758.0
1853.0
0.059
0.018
750 (61)
23.85
0.939
3447.0
2316.0
0.047
0.014
1000 (61)
28.37
1.117
4595.0
3088.0
0.035
0.011
* ASTM B-3 Specification details the requirements for solid wires and the individual wires in stranded conductors.
