2025-07-11
Aluminium alloy: lightweight material (e.g. colour-coated aluminium, aluminium-magnesium alloy), suitable for portable commemorative coins (e.g. badge-style commemorative coins), and can achieve rich colours through coating, often used for cultural and creative, campus, and sports-themed commemorative coins.1. Lightweight and portableColour-coated aluminium has a density of only 2.7 g/cm³, far lower than copper (8.9 g/cm³) and silver (10.5 g/cm³), resulting in lighter commemorative coins that are suitable for bulk carrying, mailing, or wearing (e.g., badge-style commemorative coins).2. High colour richnessThe coating on colour-coated aluminium can be customised to any Pantone colour code, accurately reproducing the pattern details of the commemorative theme (such as logos, portraits, and scene colours). Compared to traditional single-colour electroplating (gold, silver, nickel) on metal commemorative coins, it offers stronger visual appeal, making it particularly suitable for