When discussing materials like tungsten and tungsten carbide, the question of hardness often arises. Tungsten is a dense and exceptionally hard metal, while tungsten carbide is a compound made from tungsten and carbon, known for its extreme hardness and wear resistance. In this article, we will delve into the properties of both materials, compare their hardness, and explore their applications, including historical background, manufacturing processes, comparisons with other hard materials, environmental impact, and future trends.