SPRON510 is an age-hardenable Co-Ni alloy that allows tensile strength, hardness, and elongation to be adjusted over a wide range through heat treatment.

Under our test conditions, aging treatment at approximately 600°C increased the tensile strength to approximately 2,900 MPa and the hardness to over 600 HV. At the same time, elongation remained largely unchanged up to around 600°C, demonstrating an excellent balance of high strength and ductility. At heat treatment temperatures above 700°C, elongation increased significantly, enabling optimization for applications requiring enhanced formability.

This flexibility allows engineers to select material properties that match both performance requirements and manufacturing processes, making SPRON510 suitable for a wide range of spring, precision component, and formed-part applications.

Under our fatigue test conditions using material with a 73% cold reduction, SPRON510 exhibited a fatigue limit of approximately 800 MPa in the non-aged condition at a fatigue life of 10 million cycles.

Following an aging treatment of 525°C for 2 hours, the fatigue limit increased to approximately 900 MPa, demonstrating improved resistance to cyclic loading.

These characteristics enable longer service life and higher allowable design stresses for springs, sensor components, and precision mechanical parts subjected to repeated loading.

Under our test conditions, cold-worked SPRON510 maintained a tensile strength of approximately 2,200 MPa even at −196°C, demonstrating excellent mechanical performance in cryogenic environments. At elevated temperatures, high strength was retained up to around 700°C.

In contrast, annealed material exhibited relatively small changes in mechanical properties across a wide temperature range, providing a good balance of formability and stable performance.

As a result, SPRON510 can be optimized for applications ranging from high-strength springs and precision components to complex formed parts where manufacturability is a key requirement.

SPRON510 combines four key advantages—high strength, excellent resilience, superior corrosion resistance, and non-magnetic properties—delivering a level of performance unattainable with conventional metal materials. For more detailed specifications and application examples, please refer to the banner above.

SPRON510 is our proprietary Co-Ni alloy primarily composed of cobalt (Co) and nickel (Ni), with chromium (Cr) and molybdenum (Mo) additions. It offers an ultimate tensile strength of up to 2,940 MPa, a transverse rupture strength of up to 5,684 MPa, a hardness of up to Hv 800, a high Young's modulus of 216–225 GPa, and non-magnetic properties.

 SPRON510 is used in a wide range of high-reliability applications, including medical devices, precision machinery, semiconductor manufacturing equipment, and fluid control systems. Its combination of high strength, excellent spring-back characteristics, corrosion resistance, and non-magnetic properties makes it particularly suitable for components operating in harsh and corrosive environments. By helping improve durability, stability, and service life, SPRON510 contributes to the long-term reliability and quality of critical products and equipment.

For customers seeking materials that meet demanding performance requirements or facing challenges with the service life and corrosion resistance of existing materials, SPRON510 is available as a custom-made component manufactured to customer drawings and specifications.From material selection and prototype evaluation to production launch, we provide comprehensive support and propose optimized solutions that take full advantage of the unique properties of the Co-Ni alloy SPRON510.SPRON510 addresses demanding requirements for durability, corrosion resistance, spring performance, and reliability, helping customers achieve solutions that are difficult to realize with standard materials or catalog products.

We welcome inquiries regarding SPRON510, including technical consultations and material selection support. If you are looking to improve component service life, enhance corrosion resistance, or consider replacing an existing material, please feel free to contact us from the early stages of development.

For those who would like to learn more about SPRON510, we offer a catalog summarizing its material properties and application examples. It can be used as a reference when evaluating potential applications, comparing materials, and considering material selection.