Nominal Diameter of Strand in(mm) | Number of Wires In Strand | Nominal Diameter Of Coated Wires in Strand. in(mm) | Approximate Weight of Strand. Lb/1000ft (kg/304.8) | Mininum Breaking Strength of Strand Lbf(Kn) | ||||
Utilities Grade4 | Common Grade | Siemens Martin Grade | High strength Grade | Extra High. Strength Grade | ||||
1/8(3.18) | 7 | 0.041(1.04) | 32(15) | 540(2.402) | 910(4.048) | 1330(5.916) | 1830(8.140) | |
5/32(3.97) | 7 | 0.052(1.32) | 51(23) | 870(3.870) | 1470(6.539) | 2140(9.519) | 2940(130.78) | |
3/16(4.76) | 7 | 0.062(1.57) | 73(33) | 1150(5.115) | 1900(8.452) | 2850(12.577) | 3990(17.748) | |
3/16(4.76) | 7 | 0.065(1.65) | 80(36) | 2400(10.678)(1)8 | ||||
7/32(5.56) | 3 | 0.104(2.64) | 88(40) | 1400(8.228) | 2340(20.409) | 3500(15.569) | 4900(21.796) | |
7/32(5.56) | 7 | 0.072(1.83) | 98(44) | 1540(6.850) | 2560(11.387) | 3850(17.126) | 5400(24.020) | |
1/4(6.35) | 3 | 0.120(3.05) | 117(53) | 1350(14.012)(2)8 | 1850(8.274) | 3040(13.523) | 4730(21.040) | 6740(29.981) |
1/4(6.35) | 3 | 0.120(3.05) | 117(53) | 4500(20.017)(3)8 | ||||
1/4(6.35) | 7 | 0.080(2.03) | 121(55) | 1900(8.452) | 3150(14.012) | 4750(21.129) | 6650(29.581) | |
9/32(7.14) | 3 | 0.130(3.30) | 137(62) | 2080(9.252) | 3360(15.035) | 5260(23.398) | 7500(33.362) | |
9/32(7.14) | 7 | 0.093(2.36) | 164(74) | 4600(20.462)(1)8 | 2570(11.432) | 4250(13.005) | 6400(28.489) | 8950(39.812) |
5/16(7.94) | 3 | 0.145(3.68) | 171(78) | 8600(28.913)(3)8 | 2490(11.075) | 4090(18.103) | 5350(28.246) | 9100(40.479) |
5/16(7.94) | 7 | 0.104(2.84) | 205(93) | 3200(14.234) | 5350(23.798) | 8000(35.586) | 11200(49.820) | |
5/16(7.94) | 7 | 0.109(2.77) | 225(102) | 5000(28.889)(1)8 | ||||
3/8(9.52) | 3 | 0.165(4.19) | 220(100) | 8600(37.810)(3)8 | 3330(14.813) | 5560(24.732) | 8360(37.187) | 11800(52.489) |
3/8(9.52) | 7 | 0.120(3.05) | 273(124) | 11500(51.155)(4)8 | 4250(18.905) | 5950(30.915) | 10800(48.040) | 15400(68.503) |
7/16(11.11) | 7 | 0.145(3.58) | 399(181) | 18000(80.068)(4)8 | 5700(25.355) | 9350(41.591) | 14500(64.499) | 20800(92.523) |
1/2(12.70) | 7 | 0.165(4.19) | 517(234) | 25000(111.206)(4)8 | 7400(32.917) | 12100(53.623) | 18800(63.627) | 26900(119.657) |
1/2(12.70) | 19 | 0.100(2.54) | 504(229) | 7620(33.895) | 12700(56.492) | 19100(84.961) | 26700(118.768) | |
9/16(14.29) | 7 | 0.188(4.78) | 671(304) | 9500(42.703) | 15700(69.837)) | 24500(100.981) | 35000(156.686) | |
9/16(14.29) | 19 | 0.113(2.87) | 637(289) | 9640(42.681) | 16100(71.616) | 24100(107.202) | 33700(149.905) | |
5/8(15.88) | 7 | 0.207(5.26) | 613(369) | 11600(51.599) | 19100(84.961) | 29600(131.667) | 42400(188.805) | |
5/8(15.88) | 19 | 0.125(3.18) | 796(361) | 11000(48.930) | 18100(80.513) | 28100(124.905) | 40200(178.819) | |
3/4(19.05) | 19 | 0.150(3.01) | 1155(524) | 16000(71.172) | 28200(116.643) | 40800(161.467) | 58300(259.331) | |
7/8(22.22) | 19 | 0.177(4.50) | 1581(717) | 21900(97.416) | 35900(159.691) | 55800(248.211) | 79700(354.523) | |
1(25.40) | 19 | 0.200(5.08) | 2073(940) | 28700(127.664) | 47000(209.066) | 73200(325.610) | 104500(464.839) | |
1(25.40) | 37 | 0.143(3.63) | 2057(933) | 28300(125.885) | 46200(206.508) | 71900(319.827) | 102700(456.832) | |
11/8(28.58) | 37 | 0.151(4.09) | 2691(1221) | 36000(160.136) | 58900(262.000) | 91600(407.457) | 130800(581.827) | |
11/4(31.75) | 37 | 0.179(4.55) | 3248(1473) | 44600(196.391) | 73000(324.720) | 113600(505.318) | 162200(721.502) |
Nominal Diameter of Coated Wire | Minimum zinc coating of strand | ||||
Class A | Class B | ||||
in | mm | Oz/ft2 | g/m2 | Oz/ft2 | g/m2 |
0.040 to 0.061 | 1.016 to 1.549 | 0.40 | 122 | 0.80 | 244 |
0.062 to 0.079 | 1.575 to 2.007 | 0.50 | 153 | 1.00 | 305 |
0.080 to 0.092 | 2.032 to 2.337 | 0.60 | 183 | 1.20 | 366 |
0.093 to 0.103 | 2.362 to 2.616 | 0.70 | 214 | 1.40 | 427 |
0.104 to 0.119 | 2.642 to 3.023 | 0.80 | 244 | 1.60 | 488 |
0.120 to 0.142 | 3.048 to 3.607 | 0.85 | 259 | 1.70 | 519 |
0.143 to 0.182 | 3.632 to 4.623 | 0.90 | 275 | 1.80 | 549 |