Cobalt Slugs and Cylinder


Cobalt is a steel-gray, very tough metal with a density of 8.8 g / cm ³.

Natural cobalt is 100% Co59 isotopes, making it one of the 22 pure elements.

All Heraeus cobalt products are made from natural cobalt (Co59). The activation of the cobalt products is not offered by Heraeus.

Heraeus also manufactures parts according to customer drawings. We welcome any inquiry to cobalt products.

Technical Data


  • 99.7 % min.

Typical dimensions of cobalt-products

  • 6.00 x 25.00 mm; 6.25 x 25.25 mm
  • 2.00 x 2.00 mm; 3.00 x 3.00 mm
  • 1.00 x 1.00 mm; 1.04 x 1.04 mm
  • 0.60 x 3.60 mm; 0.50 x 3.50 mm
  • Ni-plating 2.50 – 5 µm and 25 – 50 µm if required


  • + 0.10 mm/ ± 0.30 mm / ± 0.40 mm and others


Heraeus supplies Cobalt Slugs respectively Cobalt Pellets for irradiation sources.

The Cobalt Products from Heraeus are using in these applications:

1. Food industry

  • to sterilize food, for instance in the packaging industry.

Food irradiation is the process of exposing boxes or pallets of food products to radiation from a cobalt source.

Due to the doses the products are used to reducing spoilage organisms in fruits and vegetables or for the dis-infestation of insects in food.

2. Medical sterilization

  • Medical radiation - in the radiological treatment (in the form of Iridium Discs)
  • i. e. the injection, gloves and other medical and surgical products

Medical sterilization includes drug device combinations and regenerative medicine products.

In this case biological and pharmaceutical components are added to medical devices and natural or synthetic scaffolds in order to enhance device effectiveness.

In some cases the combination products provide radical new treatments for disease by helping the body to regenerate specific cells.

Irradiated cobalt may eliminate harmful organisms in a variety of products.