STEEL WIRE (PC WIRE) FOR PRESTRESSED CONCRETE
This products is mainly used for prestressed and post-tensioning technology in various shapes of prestressed concrete structures. And widely use for civil engineering construction such as large scale railroad, high-way bridges, buildings trussed, overhead crane beams, industrial and prefabricated concrete floor, wall board, tubular pipes, PC water pipes, TV towers and nuclear power station etc.
Active standard:GB/T5223, ASTM A421, BS5896, JIS G3536, ISO6934, EN10138 or other special required standards.
GB/T5223-2002 Technical standards for PC Wire.
Nominal Dia. (d /mm)
|
Tolerance (mm) |
Tensile strength à /MPa Not less than
|
Yield Strength (Ã /MPa) Not less than
|
Elongation at max load (Lo=200mm) ´ /% Not less than |
Bending Times Not less than |
Bending Radius R/mm |
Relaxation Propertied |
| ||||
The relaxation at 1000 h (Initial load to 70% of nominal tensile strength) (r/%) Not less than |
| |||||||||||
4.8 |
±0.05 | 1470 1570 1670 1770 1860 | 1290 1380 1470 1560 1640 |
|
4 |
15 |
2.0 | |||||
5.0 | ||||||||||||
6.0 |
±0.05 | 1470 1570 1670 1770 | 1290 1380 1470 1560 | 3.5 |
4 |
15 | ||||||
6.25 | ||||||||||||
7.0 | 20 | |||||||||||
8.0 | ±0.06 | 1470 1570 | 1290 1380 | 4 | 20 | |||||||
9.0 | 25 | |||||||||||
Nominal Dia. (d /mm)
| No. of Helix rib | Lining Dia. and Tolerance (mm) | Outline Dia. and Tolerance (mm) | Width of Single rib (±/mm) | Layer length (c/mm) |
Nominal cross section S /mm²
| Re. mass per meter (g/m) | ||
4.00 |
4 | 3.85±0.05 | 4.25±0.05 | 0.90~1.30 | 24~30 | 12.57 | 98.6 | ||
4.80 | 4.60±0.05 | 5.10±0.05 | 1.30~1.70 | 28~36 | 18.09 | 142 | |||
5.00 | 4.80±0.05 | 5.30±0.05 | |||||||
6.00 | 5.80±0.05 | 6.30±0.05 | 1.60~2.00 | 30~38 | 28.27 | 222 | |||
6.25 | 6.0±0.05 | 6.70±0.05 | 30~40 | 30.68 | 241 | ||||
7.00 | 6.73±0.05 | 7.46±0.10 | 1.80~2.20 | 35~45 | 38.48 | 302 |
