* Technicists in DAXIONG according to the demand of the market, promote products endlessly and develop various kinds of Helical Rib (Spiral) PC Strand. Successful accept patent certificate.
* Helical Rib PC strand appearance of the main characteristics are rolling pull-out process will deal with semi-finished products after the plastic deformation after the last drawing, so that wire formed on the surface of four consecutive convex-shaped rib, whether appearance or material processing method is excellent features to plain steel wire and strand.
* 2007 DAXIONG research and developed 1*3H-9.0mm strand with TESS Japan, which is used in Beijing Metro Line 4. All performances in the test are excellent.
Nominal diameter (mm) |
Diameter Torlerance (mm) |
Base Round Diameter (mm) |
Outside Diameter (mm) |
Rib Width (mm) |
Rib Height (mm) |
Layer length (mm) |
Rib No. |
Standard |
4.00 |
±0.04 |
3.85±0.05 |
4.25±0.05 |
0.90-1.30 |
0.15-0.25 |
24-30 |
4 |
GB/T5223-2002 |
4.80 |
±0.05 |
4.60±0.05 |
5.10±0.05 |
1.30-1.70 |
0.20-0.30 |
28-36 | ||
5.00 |
±0.05 |
4.80±0.05 |
5.30±0.05 |
|
0.20-0.30 |
| ||
5.25 |
±0.05 |
5.05±0.05 |
5.55±0.05 |
1.40-1.80 |
0.20-0.30 |
28-38 | ||
6.00 |
±0.05 |
5.80±0.05 |
6.30±0.05 |
1.60-2.00 |
0.20-0.30 |
30-38 | ||
6.25 |
±0.05 |
6.00±0.05 |
6.70±0.05 |
--- |
0.30-0.40 |
30-40 | ||
7.00 |
±0.05 |
6.73±0.05 |
7.46±0.10 |
1.80-2.20 |
0.30-0.40 |
35-45 | ||
7.50 |
±0.05 |
7.25±0.05 |
7.95±0.05 |
1.90-2.30 |
0.30-0.40 |
40-50 | ||
8.00 |
±0.06 |
7.75±0.05 |
8.45±0.05 |
2.00-2.40 |
0.30-0.40 |
40-50 | ||
9.00 |
±0.06 |
8.75±0.05 |
9.45±0.05 |
2.10-2.70 |
0.30-0.40 |
42-52 | ||
9.50 |
±0.06 |
8.75±0.05 |
9.95±0.05 |
2.20-2.80 |
0.30-0.40 |
44-55 | ||
10.00 |
±0.06 |
9.75±0.05 |
10.45±0.05 |
2.50-3.00 |
0.30-0.40 |
45-58 | ||
12.00 |
±0.06 |
11.6±0.05 |
12.2±0.05 |
2.80-3.20 |
0.30-0.40 |
50-65 |