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+86 022 2376 3704
Prestressed Material
PC Strand Gost13840 is the steel coiled ropes for use as pre-stressed reinforcement pre-stressed concrete structures. And we produce it in accordance with Russia industry standard GOST 13840.
SPECIFICATIONS
The diameters and parameters of the ropes and the size of the wires constituting the rope is as specified in following table.
| Rope diameter , D, mm | Tolerance from the nominal diameter, mm | Wire diameter, mm | Nominal cross sectional area ,mm2 | Nominal weight of 1 m length， kg | Lay Lenth， mm | Breaking force | Yield Force ,F0.2 | Elongation, | Tensile Strength | Yield Strength | Relaxation on initial load of 0.7 from the actual breaking strength over a period of 1,000 h, %, not more | |||
| Conditional | Nominal | Outer Wire | Center Wire | kN (kgf) | kN (kgf) | % | N/mm2，(kgf/mm2） | N/mm2，(kgf/mm2） | Normal | Low | ||||
| 6,0 | 6,20 | (+0,15, -0.3) | 2.05 | 2,10 | 23 | 0,184 | (12-16)D | 40,6 (4140) | 34,9 (3515) | 4,0 | 1770 （180） | 1500 (153) | 8 | 2.5 |
| 9,0 | 9,35 | 3,10 | 3,15 | 53 | 0,419 | 93,5 (9540) | 79,5 (8105) | 4,0 | 1770 (180) | 1500 (153) | ||||
| 12,0 | 12.4 | (+0,2 -0,4) | 4,10 | 4,20 | 93 | 0,736 | 164,01 (16700) | 139,5 (14200) | 4,0 | 1770 (180) | 1500 (153) | |||
| 15,0 | 15,20 | 5,00 | 5,20 | 139 | 1,099 | 232,0 (23600) | 197,0 (20050) | 4,0 | 1670 (170) | 1410 (144) | ||||
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