Surface hardness

Surface hardness refers to the resistance of a material's outer layer to indentation, scratching, or wear. It's an important property because it indicates how well a surface can withstand everyday use and external forces without getting damaged. Higher surface hardness means the material's outer layer is more durable and less prone to scratches or surface wear, which extends its lifespan and maintains its appearance. This measurement is especially relevant in applications like metals, plastics, and coatings, helping engineers determine suitability for specific environments and demanding conditions.