Stainless Steel Strand
High Strength,Low Relaxation,Seven-Wire
The World's First 1960 MPa Duplex Stainless Steel Strand—Combining Exceptional Strength, Low Relaxation, and Outstanding Corrosion Resistance.
Key Benefits
- High Strength & Low Relaxation
Ultimate tensile strength of 1,960 MPa with excellent long-term prestress retention.
- Outstanding Corrosion Resistance
PREN ≥ 27 provides exceptional resistance to pitting, crevice corrosion and chloride attack.
- Excellent Resistance to Stress Corrosion Cracking (SCC)
Superior performance in aggressive marine and chloride-rich environments.
- Long-Term Durability with Minimal Maintenance
The self-passivating duplex stainless steel microstructure provides inherent corrosion protection without the need for additional coatings, significantly reducing inspection and maintenance requirements.
- Lower Whole-Life Cost
Extended service life, reduced maintenance and improved durability deliver superior life-cycle value compared with coated or galvanized prestressing strands.
- Excellent Low-Temperature Toughness
Maintains reliable mechanical performance in cold and low-temperature service conditions.
- Sustainable Solution
Fully recyclable and designed to support durable, low-maintenance infrastructure.
Typical Applications
- Cable-stayed bridges
- External and internal post-tensioning systems
- Marine and coastal structures
- Tunnels and underground infrastructure
- Mining infrastructure
- Ports, jetties and offshore facilities
Stainless Steel Strand
| Steel Material | EN:1.4462 UNS:S32205 |
|---|---|
| Standard | ASTM A1114/A1114M |
| Diameter | 15.2, 15.7mm |
| Strand Structure | 1×7 |
| Tolerance | ≥27 |
| PREN | (+0.4,-0.15)mm |
| Total Elongation at Maximum Force(L0 ≥ 500 mm) | ≥1.6% |
| Stress Relaxation 1000 h (%) | ≥1.6% |
| Fatigue Resistance (300 MPa Stress Range,Cycles) | ≥8×106 |
| Stress Corrosion Resistance | >72 h |
| Grade (ksi/MPa) | Nominal Diameter (mm) | Cross-sectional Area (mm2) | Minimum Breaking Strength (kN) | FP0.2% Proof Strength (kN) |
|---|---|---|---|---|
| 240 [1655] | 13.2 | 108 | 179 | 157 |
| 15.2 | 140 | 232 | 204 | |
| 15.7 | 150 | 248 | 218 | |
| 270 [1860] | 15.2 | 140 | 260 | 229 |
| 15.7 | 150 | 279 | 246 | |
| 284 [1960] | 15.2 | 140 | 274 | 241 |
| 15.7 | 150 | 294 | 259 |
Engineered for Long-Term Value
Unlike epoxy-coated or galvanized prestressing strands, FusteelX Duplex Stainless Steel Prestressing Strand delivers inherent corrosion resistance without relying on surface coatings. It eliminates the risk of coating damage, reduces inspection and maintenance, and significantly lowers whole-life cost, especially in marine, coastal, and other chloride-rich environments.
low-relaxation
high-strength
Comply with astm a1114
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Projects Using Our Stainless Steel Products
China New Antarctic Research Station, Antarctica (China)
Eastern Corridor, Hong Kong
Liuheng Highway Bridge, China
New Pattullo Bridge, Canada
