Kobolttikromi (Remanium Star)

Cobalt chrome (Remanium Star)

General applications

Cobalt chrome (Remanium Star) alloy is used in particularly demanding environments in industry and medical applications. The material is commonly used in gas turbines, dental implants and orthopedic implants.

Cobalt chrome has a very high characteristic strength and strong resistance to corrosion and wear. In addition, it withstands heat very well. The material also stands out with its high tensile strength value. The combination of low yield strength, relatively high elongation at break and high tensile strength means that as stress increases, the metal will bend quite easily, but it will bend a relatively large amount before breaking.

Compared to other cobalt-chromes, the material is a medium-hard, rigid and strong material that molds relatively easily. Typical applications are fully functional end products.

Examples of applications:

  • Aviation industry
  • Medical applications, e.g. dental and implants
  • Pressurized items
  • For replacing castings

The use of cobalt chrome in industrial 3D printing

Cobalt chrome is 3D printed using SLM technology. SLM, i.e. Selective Laser Melting, refers to a printing technology in which metal powder is melted with a powerful laser to produce the desired shape. The laser beam used in this technique is very narrow, which makes it possible to print very precise shapes.

Cobalt chrome in the manufacture of dental implants

The cobalt chrome alloy remanium® star CL is specially designed for the manufacture of dental implants:

  • DIN EN ISO 9693 / DIN EN ISO 22674, Type 5
  • Certified alloy (CE 0483)
  • Material according to ASTM standards

Applications:

  • crowns and bridges
  • metal-ceramic coating bodies
  • removable partial dentures
  • primary and secondary components of composite restorations

Compared to plastic (acrylic) dentures, cobalt chrome dentures are stronger. Metal prostheses also do not cover as much of the palate as plastic prostheses, which improves comfort. The 3D printed cobalt chrome prosthesis is lighter than acrylic, and in addition, by printing, the prosthesis can be shaped more precisely to provide a better fit.

Although a 3D-printed cobalt chrome prosthesis can be a more expensive option than acrylic, the durability of cobalt chrome, as well as the comfort offered by the precise printing technology, often make dental professionals prefer a metal prosthesis.

Read more about our services for dental professionals.

Palokan Hammas Oy decided to try 3D printed cobalt chrome prostheses and has now cooperated with Materflow for several years. Read about Palokkas experiences.

Cobalt chrome (Remanium Star) is designed spesifically for dental applications:

  • DIN EN ISO 9693 / DIN EN ISO 22674, Typ 5
  • Certified alloy (CE 0483)
  • Meets the requirements of ASTM standards
  • Range of application: Crowns and bridges, frames for metal ceramic veneering, removable partials, primary and secondary parts of combined restorations

Read more about our services for dental professionals.

3D Printing Technique: Selective Laser Melting (SLM)
Build chamber/max size: 90 mm x 90 mm x 80 mm
Layer thickness: 25 um
Dimensional accuracy: ± 0,15 mm
Support material: Printed material

Read more:
> About Selective Laser Melting
> Design guidelines for metal printing

Mechanical properties

Chemical composition

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