Oil tempering

High-performance wire for demanding spring applications

Our oil tempering process ensures optimal mechanical properties for spring wire, enabling it to withstand demanding conditions in both forming operations and final applications. Applied after cold working, the process is carefully controlled to achieve the desired balance of strength, ductility, and fatigue resistance. Oil tempered wire is widely used in applications where reliability and durability are essential. Through precise heat treatment and strict process control, the wire achieves consistent performance under dynamic loads and elevated working temperatures.

Manufacturing advanced oil tempered wire solutions

Our oil tempered product range includes grades developed for different performance demands.

  • Super clean steel is designed for valve springs requiring high fatigue strength and reliable relaxation properties, even at moderately elevated working temperatures.
  • The KD series is an oil tempered clutch spring wire optimized for clutch springs with varying performance requirements, delivering stable dynamical characteristics.
  • The STATO series is an oil tempered wire used for springs subjected to static stress or moderate fatigue, providing a reliable alternative to cold drawn spring wire in many applications.

Strong focus on quality, reliability, and adaptability

Across our oil tempered wire product range, we maintain a strong focus on quality, reliability, and adaptability. Each batch of wire undergoes thorough testing to ensure it meets both our internal standards and the specific requirements of your application. With a global production footprint and extensive experience in spring wire technology, we support customers worldwide with consistent quality and reliable supply. Through continuous development of our processes and materials, we continue to expand the possibilities of oil tempered steel wire for high-performance spring applications.

Our capabilities

Optimized heat treatment

Oil tempering is a heat-treatment process where the wire is heated, quenched in oil, and tempered to achieve a combination of high strength, toughness, and fatigue resistance.

Reliable fatigue performance

Oil tempered wire is commonly used in highly stressed spring applications such as valve springs and clutch springs, where durability and resistance to cyclic loading are critical.

Consistent mechanical properties

The controlled tempering process provides uniform mechanical properties along the entire wire length, ensuring predictable forming behaviour and reliable spring performance.

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