Cobalt Alloy 9.9135 HL (UNS R31537)

Cobalt Alloy 9.9135 HL / CoCr30Mo7 / UNS R31537 / ASTM F1537

Cobalt Alloy 9.9135 HL is a cobalt-chromium-molybdenum alloy (CoCrMo) known for its exceptional biocompatibility, high strength, corrosion resistance, and wear resistance. This combination makes the alloy particularly suitable for long-term use in the human body and demanding medical applications.

The reliable performance under physiological conditions makes Cobalt Alloy 9.9135 HL a favored material in orthopedics and cardiovascular surgery.

Properties of Cobalt Alloy 9.9135 HL

Cobalt Alloy 9.9135 HL offers an optimal balance between mechanical strength, fatigue resistance, and corrosion resistance in biological environments. The alloy is specifically developed for implants that remain in the human body for extended periods, where biocompatibility and wear resistance are crucial.

Thanks to its high resistance to stress corrosion and wear, Cobalt Alloy 9.9135 HL remains stable even under prolonged mechanical stress. The structure of this CoCrMo alloy prevents material degradation, which is essential for orthopedic and cardiovascular implants.

The standards ASTM F1537 and ISO 5832-7 specify the requirements for this alloy in the form of wire, strip, and strip rod for use in surgical implants. These standards ensure that the material meets the highest demands for safety, quality, and performance in the medical sector.

Applications of Cobalt Alloy 9.9135 HL

Cobalt Alloy 9.9135 HL is primarily used for orthopedic implants such as hip and knee prostheses, where long-term load-bearing and biocompatibility are crucial. Additionally, it is a suitable material for surgical instruments and cardiovascular applications like heart valves, thanks to its high resistance to wear and corrosion.

The versatility of this alloy allows for the combination of both functional and structural requirements in medical applications, contributing to patient comfort and safety.

Cobalt Alloy 9.9135 HL is the ideal choice for applications where durability, biocompatibility, and wear resistance are paramount.

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