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Prestressed Material
12k7 Gost13840 1x7 Reinforced steel ropes is the pc strand in accordance with Russia industry standard.
We have a deep understanding to this industry standard and have many year’s produce experience.
ADVANTAGES
12k7 Gost13840 1x7 Reinforced steel ropes is the pc strand in accordance with Russia industry standard.
We have a deep understanding to this industry standard and have many year’s produce experience.
SPECIFICATIONS
12k7 Gost13840 pc strand has following technical parameter:
| 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 | ||||
| 12,0 | 12.4 | (+0,2 -0,4) | 4,10 | 4,20 | 93 | 0,736 | (12-16)D | 164,01 (16700) | 139,5 (14200) | 4,0 | 1770 (180) | 1500 (153) | 8 | 2.5 |
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