Generally low carbon balls (either soft or case hardened) are first copper and then nickel plated in order to achieve good corrosion resistance at lower price than costlier stainless steel balls.
The most common applications include cosmetics (nail polish), stationary products (e.g. anti-drying agent for felt pens and correction fluids), toys (flippers and pinball tables, chinese checkers), and gadgets in general.
Ci | Grade | |
Copper BS 2874 - C102 | 99.9% min. | 500, 1000 |