Steel Wire Rope Pc Strand 1*7 15.24mm Post Tension Steel Strand 1860
Prestressing Steel Strand for Bridge
Product Introduction
This product is a 1 × 7 high-strength prestressed steel strand, made of SWRH82B high carbon
steel wire rod as raw material, and processed through drawing, twisting, low-temperature
stabilization, and other processes. The nominal diameter is 15.2mm, the tensile strength
is ≥ 1860MPa, the yield strength is ≥ 1670MPa, and the maximum total elongation rate
is ≥ 3.5%. All indicators comply with the GB/T 5224-2014 standard.
Product Parameters
| GB/T 5224-2014 |
| Steel Strand Strcture |
Nominal Diamete Da /mm |
Dia Tolerance
/mm |
Strand Nominal Cross-Sectional Area Sn/mm² |
Approx. Weight per meter(g/m) |
Range(extened)% of core wire's diameter not less than |
| 1x7 |
9.50 |
|
54.8 |
430 |
2.5 |
| (9.53) |
+0.30 |
| 11.10 |
0.15 |
74.2 |
582 |
| (11.11) |
|
| 12.70 |
|
98.7 |
775 |
| 15.20 |
|
140 |
1101 |
| (15.24) |
|
| 15.70 |
+0.40 |
150 |
1178 |
| 17.80 |
-0.15 |
191 |
1500 |
| (17.78) |
|
(189.7) |
| 18.90 |
|
220 |
1727 |
| 21.60 |
|
285 |
2237 |
| ASTM A416 1X7 |
| Grade |
Nominal Diamete
(mm) |
Tolerance
(mm) |
Area of Section (mm²) |
Weight of strand (kg/1000m) |
Minimum Breaking Load (KN) |
Minimun Load at 1% extension (KN) |
Elongation not less than (%) |
1000Hrs Relaxation Value Not More Than |
70%
Initial Load |
80%
Initial Load |
| 250 |
9.53 |
±0.41 |
51.61 |
405 |
89.0 |
80.1 |
3.5 |
2.5 |
3.5 |
| 11.11 |
69.68 |
548 |
120.1 |
108.1 |
| 12.70 |
92.90 |
730 |
160.1 |
144.1 |
| 15.24 |
139.35 |
1094 |
240.2 |
216.2 |
| 270 |
9.53 |
+0.65 |
54.84 |
432 |
102.3 |
92.1 |
3.5 |
2.5 |
3.5 |
| 11.11 |
74.19 |
582 |
137.9 |
124.1 |
| 12.7 |
-0.15 |
98.71 |
775 |
183.7 |
165.3 |
| 15.24 |
140.00 |
1102 |
260.7 |
234.6 |
Product Shown
Product Advantages
High strength and low relaxation performance: SWRH82B high carbon steel wire rod is used,
with a tensile strength of ≥ 1860MPa and an initial relaxation rate of ≤ 2.5%. The long-term
stress loss is only one-third of that of ordinary products, ensuring the long-term mechanical
stability of the structure
Standardized adaptation performance: Strictly following the GB/T 5224-2014 standard for
production, with nominal diameter tolerance controlled within ± 0.05mm, it can seamlessly
match mainstream anchoring systems such as OVM, VM, PESM at home and abroad, reducing
construction adaptation costs
Uniform mechanical properties: Through online stress relief technology, the maximum force total
elongation deviation of the same batch of steel strands is ≤ 0.5%, and the tension process is
uniformly stressed to avoid structural damage caused by local stress concentration
Product Application
At present, it has been widely used in engineering scenarios such as large-span bridge box girders,
nuclear power plant safety shells, prestressed anchoring of water conservancy dam bodies,
and splicing of subway shield tunnel segments, providing reliable mechanical guarantees for the
long-term safe service of structures.
Product Certificate
Our steel wire rope meets international production standards and has obtained multiple
certifications such as SGS, CE, ISO, etc
Product Tags:
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Low Relaxation PC Strand 1*7 Images
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