Korkeahiilinen

Korkeahiilinen is a term originating from the Finnish language, literally translating to "high-carbon". In practical contexts, it most commonly refers to steel that has a higher percentage of carbon content compared to other types of steel. This increased carbon content significantly affects the steel's properties, making it harder and stronger, but also more brittle. The exact carbon content that defines high-carbon steel can vary, but it is generally considered to be above 0.60% up to about 2.0%.

The properties of high-carbon steel make it suitable for applications where durability, wear resistance, and the ability to hold a sharp edge are crucial. Common uses include tools such as knives, files, saw blades, and springs. Due to its hardness, it can be heat-treated (quenched and tempered) to achieve even greater strength and resilience. However, this increased hardness also makes it more difficult to machine and weld compared to lower-carbon steels. The specific composition and heat treatment of high-carbon steel are carefully controlled to achieve the desired balance of hardness, toughness, and ductility for its intended application.