2021 High quality Low Relaxation Seven-Wire Strand For Prestressed Concrete - PC Galvanized (Aluminum) Strand – Silvery Dragon
2021 High quality Low Relaxation Seven-Wire Strand For Prestressed Concrete - PC Galvanized (Aluminum) Strand – Silvery Dragon Detail:
This product is applied to stay cables, main cables and anchoring systems of bridge cable structures, external cables of arch bridge slings and other pre-stressed structures that do not directly contact with concrete mortar. we have participated in the construction of many large cable-stayed bridges in China. The diameter of this product is 12.70mm, 15.20mm, 15.70mm, 17.8mm and it is low relaxation pre-stressed strand. The coated steel wire is further drew and stabilized by heat treatment, then intermediately made to galvanized (aluminum) strand. The strand has no binding, and won’t get loose after cutting. The surface coating is uniform and continuous, and the straightness is good. The mechanical properties meet the requirements of ASTMA416, prEN10138, NFA35-035 and other international standards. The strand has a uniform lay length, which is 12-16 times of the nominal diameter. The coating mass of the single wire is 190~350g/m2. The aluminum content of the zinc-aluminum alloy steel strand coating is not less than 4.2%. The coating adhesion is strong, and the coating is uniform without leakage. The amount of zinc can meet the requirements of A475-09, level A.
Key parameters & reference standards
| Nominal Diametermm | Tensile Strength Rm/Mpa |
Specifications |
Minimum difference between center wire and outer wires mm | |||||||
| Max. Force KN≥ | 0.2% Proof Force KN≥ | Elongation under Max. Force % | 1000h Relaxation(Initial Load 0.7) r / % | Deflective Tensile Coefficient % | Pulsating Tensile Fatigue | |||||
| Inhaul Cable | Non Inhaul Cable | Inhaul Cable | Non Inhaul Cable | |||||||
| 12.70 | 1770 | 175 | 156 | ≥3.5 | ≤2.5 | ≤20 | ≤28 | Stress Limit 0.45 FmStress Amplitude 300MPa
2.0×106 times No breaking |
Stress Limit 0.7 FmStress Amplitude 190MPa
2.0×106 times No breaking |
0.08 |
| 1860 | 184 | 164 | ||||||||
| 1960 | 194 | 173 | ||||||||
| 15.20 | 1770 | 248 | 221 | ≥3.5 | ≤2.5 | ≤20 | ≤28 | 0.11 | ||
| 1860 | 260 | 232 | ||||||||
| 1960 | 274 | 244 | ||||||||
| 15.70 | 1770 | 266 | 237 | ≥3.5 | ≤2.5 | ≤20 | ≤28 | 0.12 | ||
| 1860 | 279 | 249 | ||||||||
| 1960 | 294 | 262 | ||||||||
| 17.80 | 1770 | 338 | 301 | ≥3.5 | ≤2.5 | ≤20 | ≤28 | 0.15 | ||
| 1860 | 355 | 316 | ||||||||
| 1960 | 374 | 333 | ||||||||
Product detail pictures:

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Persisting in "High top quality, Prompt Delivery, Aggressive Price", now we have established long-term cooperation with customers from the two overseas and domestically and get new and aged clients' large comments for 2021 High quality Low Relaxation Seven-Wire Strand For Prestressed Concrete - PC Galvanized (Aluminum) Strand – Silvery Dragon, The product will supply to all over the world, such as: Brazil, Nicaragua, Belarus, Whether selecting a current product from our catalog or seeking engineering assistance for your application, you can talk to our customer service center about your sourcing requirements. We can provided good quality with competitive price for you personally.
We feel easy to cooperate with this company, the supplier is very responsible, thanks.There will be more in-depth cooperation.





