That’s how many platinum pellets and rivets for automotive spark plugs Heraeus manufactured last year. The pellets are less than a millimeter (0.6 to 0.8 mm to be exact). Placed next to each other, the spheres would form a line around 16 kilometers long. They are located precisely at the tip of the spark plug where temperatures can exceed 1000 °C and they can extend plug life up to three times.
Innovation in figures: 20,000,000 pellets
Platinum-nickel and platinum–iridium alloys are typical materials used in spark plug electrodes. Heraeus manufactures large quantities of the high-quality precision balls using special production facilities.