Spiral PC Strand
Spiral PC Strand
The spiral PCstrand is a PC steel product with an independent intellectual property. Itadopts the spiral technology featuring good mechanical strength and bondstrength to the concrete. The rope is mainly used in high-rise buildings,railway sleepers, long-span bridges, etc.
Key Parameter and ReferenceStandards
| Appearance | Nominal dia.(mm) | Tensile strength (MPa) | Relaxation(1000h) | Standards |
| Seven wires in left- or right-twist with spiral ribs | 8.0, 9.3, 9.53 11.1, 12.5, 12.7 12.9, 15.2, 15.24 15.7 | 1770,1860 | Low relaxation ≤2.5% | ASTM A416 BS5896 En1038-3 AS/NZS4672 GB/T5224 KS7002 ISO6934/4 SS213620 JISG36094 NEN3868 |
| Two wires in left- or right-twist with spiral ribs | 7.6, 8.6, 9.1 | 1725,1860 | Low relaxation ≤2.5% | ABNT NBR7483 |
| 4.8, 5.2, 5.8, 6.2 6.5, 7.5, 8.6 | ASTM A910 |
This series of product comes in three varietiesdetermined by the number of wires. It offers 2-wire, 3-wire, and 7-wire PCstrands with either left-twist knitting or right-twist knitting. The 7-wirerope can be supplied with a diameter of 8.0mm, 9.3mm,9.53mm, 11.1mm, 12.5mm, 12.7mm, 15.2mm, 15.24mm, or 15.7mm. Its tensile strengthcan be 1170MPa or 1860MPa. The 2-wire rope is available in a diameter of 7.6mm, 8.6mm or 9.1mm.The 3-wire rope offers multiple diameter options including 4.8mm, 5.2mm, 5.8mm,6.2mm, 6.5mm, 7.5mm, and 8.6mm. Both the 2-wire and 3-wire ropes are suppliedwith tensile strength of 1725MPa or 1860MPa. All those products have beenwidely used in engineering constructions from all over the world. For ourcompany, the customers’ trust is the highest compliment.
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