high tensile and heavy zinc-coating galvanized steel wire strand for messenger wire as per ASTM A 475
Physical Properties of Zinc Coated Steel Wire Strand
| Nominal diameter of Strand In (mm) | Number | Nominal diameter of Coated wires in Strand | Approximate Weight of Strand (kg/304.8m) | Minimum Breaking Strength of Strand (KN) | ||||
| Utilities Grade | Commom Grade | Siemens Martin Grade | High Strength Grade | Extra High Strength Grade | ||||
| 3/16(4.76) | 7 | 1.57 | 33 | ------ | 5.115 | 8.452 | 12.677 | 17.748 |
| 7/32(5.56) | 3 | 2.64 | 40 | ------ | 6.228 | 10.409 | 15.569 | 21.796 |
| 7/32(5.56) | 7 | 1.83 | 44 | ------ | 6.850 | 11.387 | 17.126 | 24.020 |
| 1/4(6.35) | 7 | 2.03 | 55 | ------ | 8.452 | 14.012 | 21.129 | 29.581 |
| 9/32(7.14) | 7 | 2.36 | 74 | 20.462 | 11.432 | 18.905 | 28.469 | 39.812 |
| 5/16(7.94) | 7 | 2.64 | 93 | ------ | 14.234 | 23.798 | 35.586 | 49.820 |
| 3/8(9.52) | 7 | 3.05 | 124 | 51.155 | 18.905 | 30.915 | 48.040 | 68.503 |
| 7/46 | 7 | 3.68 | 181 | 80.068 | 25.355 | 41.591 | 64.499 | 92.523 |
| 1/2(12.70) | 7 | 4.19 | 234 | 111.206 | 32.917 | 53.823 | 83.627 | 119.657 |
| 1/2(12.70) | 1 | 2.54 | 229 | ------ | 33.895 | 56.492 | 84.961 | 118.768 |
| 9/16 | 1 | 2.87 | 289 | ------ | 42.881 | 71.616 | 107.202 | 149.905 |
| 5/8(15.88) | 1 | 3.18 | 361 | ------ | 48.930 | 80.513 | 124.995 | 178.819 |
| 3/4(19.05) | 1 | 3.81 | 524 | ------ | 71.172 | 116.643 | 181.487 | 259.331 |
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