voestalpine Wire Technology is your reliable partner for high-quality prestressing steel wire - manufactured under optimal process conditions and with continuous quality control. Our integrated production chain, from the steel mill to the finished prestressing steel wire, guarantees maximum traceability, flexibility, and delivery reliability.
Whether smooth, profiled, in coils or rods, with or without thread, straight or bent into hairpins – our prestressed steel wires are the first choice wherever high forces need to be absorbed safely and efficiently: in construction, railway infrastructure, the energy sector, and the precast industry. Thanks to their high strength, precise dimensional accuracy, and optimal workability, our products meet the requirements of even the most demanding projects.
✔ From ore to wire
✔ 400+ steel alloys
✔ Own R&D facilities
✔ CO2 reduced processes
Applications of prestressing steel wire
Construction industry:
- Precast concrete elements
- masts
- pressure pipes
Customized wire solutions:
- individual wire development for special industry requirements
- prototypes & small series for research and industry
- material consulting for demanding projects
Technical details on prestressed steel wire
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Prestressing wire in acc. with FprEN 10138-2
Diameter Tensile strength Cross-sectional area Mass Characteristic value of max. force Max. value of max. force Value of 0.1% proof force D Rm Sn M Fm Fm, max Fp 0,1 mm N/mm2 mm2 g/m kN kN kN 5,0 1770 19,6 153,1 34,7 39,9 30,5 5,0 1860 19,6 153,1 36,5 42,0 32,5 6,0 1770 28,3 221,0 50,1 57,6 44,1 7,0 1670 38,5 300,7 64,3 73,9 56,6 7,0 1770 38,5 300,7 68,1 73,3 59,9 7,5 1670 44,2 345,2 73,8 84,9 64,9 8,0 1670 50,3 392,8 84,0 96,6 73,9 9,4 1570 69,4 452,0 109,0 125,0 94,8 9,5 1570 70,9 553,7 111,0 128,0 96,6 10,0 1570 78,5 613,1 123,0 141,0 107,0 10,5 1570 86,6 676,3 136,0 156,0 118,0 11,0 1570 95 742,0 149,0 171,0 130,0 Please contact us for special requirements, intermediate sizes or alternative dimensions up to max. 11.5 mm. -
- Deflective tensile test
- Relaxation test
- NH4SCN corrosion test
- Fatigue test frequency range 10 - 120 Hz
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- Smooth
- Indented
- With special indentation
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- Coils
- Bars
- Bars with threads on both ends
- Hair pins
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- ISO 9001
- ISO 14001
- EMAS III
- IATF 16949
- ISO 17025
- ISO 45001
- ISO 50001
News, stories, use cases:
Your advantages with voestalpine Wire Technology
- High strength and precision: Exact compliance with mechanical, technological, and geometric properties. Special requirements regarding geometry, tolerances, ring dimensions, and ring weights are possible. Precise adherence to tolerances (diameter, length, thread, profiling).
- Flexible delivery forms: Prestressing steel wire is available in rings or rods, with smooth, profiled, or specially profiled surfaces.
- Certified quality assurance: Accredited laboratory for special tests and an ISO 9001-compliant testing system.
- Special solutions and sample provision: Rapid provision of sample rods for customer-specific developments. Additional surface coating and corrosion protection (zinc coating)
FAQs – Frequently asked questions about prestressed steel wire
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Prestressing steel wire is a high-strength wire that is used specifically for prestressing concrete in construction projects. By applying targeted tension to the wire before or after concreting, a compressive force is generated in the concrete, which significantly increases its load-bearing capacity and crack resistance.
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Yes, we have numerous prestressing steel approvals for relevant markets.
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Thanks to our production flexibility, we can respond quickly to customer requirements.
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We offer customized solutions, even for special requirements.
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The choice of wire depends on the production process. End-anchored concrete sleepers require special bar lengths and strengths, while direct bonding focuses on other geometries and surface qualities. We provide individual advice depending on the system requirements.
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Yes, through targeted material selection and optimized forming processes, we can achieve higher strengths without compromising workability.
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We rely on sustainable production processes, invest in the conversion to the EAF route, and document our CO₂ balance transparently - a growing factor in customer decisions.
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High-carbon prestressing steel wires require precisely coordinated processes during welding, drawing, profiling, and cutting to length. Our production facilities are specialized to ensure smooth processing.
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Our R&D center provides support with material design, simulations of material properties, stress curves, and alloy design to ensure maximum performance and innovation.
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Special packaging (e.g., seaworthy) is available to a limited extent. Consignment warehouses or individual storage solutions can be developed jointly as needed.
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Our accredited laboratory enables comprehensive testing. We meet all ISO 9001 requirements - including special tests for specific customer requirements.
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Thanks to modern equipment and a targeted selection of raw materials, we can reliably meet even demanding requirements, such as increased strength or special geometries.
Do you have a new project that requires prestressed steel wire?
Our experts will be happy to advise you and find the right solution for your requirements!
