Pen Points have to meet very high requirements. They must be hard, i.e. wear-resistant and tough, and capable of being perfectly welded to both gold and steel nibs, and must have excellent polishing properties as well as being free from porosity and resistant to inks.
- usage: tipping of fountain pen nibs
- alloy: high-percentage ruthenium alloy with osmium and traditionally tungsten
- availability: diameter: 0.60 up to 1.60 mm, tolerance: +/- 0.05 mm
- specific weight: approx. 15.35 g / cm³
- production: molten alloy
- supplied in: near spherical form
- weldability: very good with steel and good with 14 ct and 18 ct gold
- hardness: approx. HV 500
- ink-resistantance: a good resistance against all commonly used links
- longevity: factor 50
- does not contain any: arsenic, cadmium, hexavalent chromium, mercury, antimony, lead, barium or any soluble compound of these materials