Spring steel wire from voestalpine Wire Technology stands for outstanding elasticity, strength, and durability—ideal for demanding technical applications in industry and automotive engineering. Whether clutch springs, axle springs, or highly dynamic valve springs: our products impress with their flawlessness, direct drawability, uniform microstructure, and maximum purity - perfect for modern manufacturing processes and extreme loads. Spring steel wire is essential for applications with high dynamic stress and strict requirements in terms of service life and material quality. Solutions that are flawless, directly drawable, and suitable for superclean requirements are in particularly high demand.
✔ From ore to wire
✔ 400+ steel alloys
✔ Own R&D facilities
✔ CO2 reduced processes
Applications of spring steel wire
Mobile industry:
- Clutch springs
- Valve springs for maximum dynamics, superclean requirements
- Torsional vibration damping springs in the drive train
- Springs for shock absorbers
- Axle springs with maximum surface quality
- Rail clamps for concrete sleepers
Customized wire solutions:
- individual wire development for special industry requirements
- prototypes & small series for research and industry
- material consulting for demanding projects
Technical details about spring wire
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Spring steel wire according to EN 10270-1
- Dimensional range: 14,00 mm - 20,00 mm
- Heat treatment conditions: air-patented (stelmor)
- Reduction in area after fracture (Z): minimum 20%
- Surface: phosphate-coated, bright
Spring steel wire according to EN 10089
- Extract from our product portfolio
- Steel grades
- 51 CrV4
- 52SiCrNi5
- 67SiCr5
- Steel grades
- Dimensional range: approx 1,00 mm - 29,00 mm
- Surface: drawn with phosphated surface, bright, other surface upon request
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GKZ + K + AC + C annealed on spheroidised carbide + skin-pass GKZ + K + GKZ + AC + C + AC annealed on spheroidised carbide + cold drawn + annealed on spheroidised carbide Further types upon request.
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Spring steel wire according to EN 10270-1 & EN 10089 upon request
- For detailed information have a look at our Flat and Shaped Wire site
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- ISO 9001:2008
- ISO 9001:2015
- ISO 14001:2015 EMAS III
- ISO/TS 16949:2009
- IATF 16949:2016
- ISO 17025: 2007
- BS OHSAS 18001:2007
- ISO 45001
- ISO 50001:2011
Your advantages with voestalpine Wire Technology
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Fault-free and stable: Minimal edge decarburization, defined process windows, and maximum steel purity ensure reliable processing - even in highly dynamic applications.
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Direct drawability and cost efficiency: Our optimized V-alloyed SiCrV alloys enable reliable direct processing of our rolled wires without intermediate patenting.
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Excellent formability: Uniform mechanical and technological properties thanks to the narrowest analysis ranges and controlled production processes.
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Superclean technology for springs subjected to highly dynamic loads: For products such as valve springs, we guarantee maximum purity (e.g., max. inclusion sizes ≤15 µm) for maximum service life.
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Certifications: Our spring wire is certified according to EN 10270-1 and EN 10089.
FAQ: Frequently asked questions about our spring steel wires
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Spring steel wire is a high-strength wire that has been specially developed for applications in which elastic recovery, fatigue strength, and dimensional stability are crucial - e.g., in technical springs, fasteners, or valve components.
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In cooperation with our steelworks, we are developing what is known as superclean technology, which reduces non-metallic inclusions in a critical surface area to a minimum. This is essential for springs subjected to extremely dynamic loads, such as valve springs in combustion engines, in order to ensure maximum service life and safety. Superclean spring steel wire reduces the risk of spring breakage, so to speak.
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Thanks to optimized alloys, targeted cooling parameters, and thermographic process monitoring, we supply spring wires that can be processed directly—without intermediate patenting.
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Our products are IATF certified. Each wire is tested according to defined test plans – individually tailored to the requirements of our customers.
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Yes. voestalpine Wire Technology has developed a new ultra-high-strength spring steel grade with high toughness. An initial CC3 single batch has already been successfully produced and tested by the customer. The aim is to establish a stable European supply chain for the most demanding requirements.
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Thanks to optimized alloy variants and defined cooling parameters, our spring steel wires can be drawn directly without intermediate patenting. This saves costs and reduces process steps—a clear efficiency advantage for our customers.
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Elements such as Cu and Sn can influence the long-term behavior and fatigue strength of spring steels. That is why voestalpine is involved in a cooperation project within the Spring Steel Association to further improve the targeted use and control of these elements—with a focus on high-quality and resilient spring wire solutions.
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We work with the narrowest analysis ranges in chemical composition and reproducible process windows throughout the entire manufacturing process. This ensures consistent material performance—ideal for applications with high reliability and repeatability requirements.
Do you have a new project that requires spring steel wire?
Our experts will be happy to advise you and find the right solution for your requirements!
