Standard Concentric Stranding (ASTM) Class B

Nominal Size
Of Conductor
Lbs. Per
1000 Feet
Copper
Ft. Per
Lb.
Number
of Wires
Diameter
of Wires
Outside
Diameter
In Inches
3,000,000 9353. .1069 169 .1332 1.998
2.500,000 7794. .1283 127 .1403 1.824
2,000,000 6175. .1619 127 .1255 1.632
1,750,000 5403. .1851 127 .1174 1.526
1,500,000 4631. .2159 91 .1284 1.412
1,250,000 3859. .2591 91 .1172 1.289
1,000.000 3088. .3238 61 .1280 1.152
900,000 2779. .3598 61 .1215 1.094
800,000 2470. .4049 61 .1145 1.031
795,000 2466. .4055 61 .1142 1.028
750,000 2316. .4318 61 .1109 .998
700,000 2161. .4627 61 .1071 .964
650,000 2007. .4983 61 .1032 .929
600,000 1853. .5397 61 .0992 .893
550,000 1698. .5889 61 .0950 .855
500,000 1544. .6477 37 .1162 .813
450,000 1389. .7199 37 .1103 .772
400,000 1235. .8097 37 .1040 .728
397,500 1235. .8097 37 .1037 .726
350,000 1081. .9251 37 .0973 .681
300,000 926.3 1.079 37 .0900 .630
250,000 771.9 1.30 37 .0822 .575
0000 653.3 1.53 19 .1055 .528
000 518.1 1.93 19 .0940 .470
00 410.9 2.43 19 .0837 .419
0 325.8 3.07 19 .0745 .373
1 258.4 3.87 19 .0664 .332
2 204.9 4.88 7 .0974 .292
3 162.5 6.15 7 .0867 .260
4 128.9 7.76 7 .0772 .232
5 102.2 9.78 7 .0688 .206
6 81.05 12.34 7 .0612 .184
7 64.28 15.56 7 .0545 .164
8 50.97 19.62 7 .0486 .146
9 40.42 24.74 7 .0432 .130
10 32.06 31.19 7 .0385 .116
12 20.16 49.60 7 .0305 .0915
14 12.68 78.86 7 .0242 .0726
16 7.974 125.41 7 .0192 .0576
18 5.015 199.40 7 .0152 .0456
20 3.154 317.06 7 .0121 .0363