EN8 is a medium carbon steel grade commonly used in sheet form for engineering and industrial applications requiring moderate strength and good machinability. It is known for its excellent mechanical properties, wear resistance, and ease of processing, making EN8 steel sheets a popular choice in both fabrication and manufacturing sectors. The typical chemical composition of EN8 includes approximately 0.40% carbon, 0.60–1.00% manganese, and small amounts of silicon, sulfur, and phosphorus. This composition gives EN8 steel good tensile strength (typically in the range of 500–800 MPa when heat-treated) and moderate ductility, making it suitable for components subjected to mechanical stress. EN8 sheets can be supplied in untreated (as rolled) or normalized conditions. They are also suitable for heat treatment processes such as hardening and tempering, which significantly enhance hardness and strength. However, due to its medium carbon content, EN8 has lower weldability compared to low-carbon steels and may require preheating and post-weld heat treatment. Common applications of EN8 steel sheets include automotive components, machinery parts, shafts, gears, keys, and general engineering products. These sheets are ideal where high tensile strength and wear resistance are more critical than extreme ductility or corrosion resistance. Although EN8 is not stainless and can corrode if exposed to moisture, its performance in dry environments or with proper coating (such as painting or galvanizing) is reliable and cost-effective. In summary, EN8 steel sheets offer a balanced combination of strength, toughness, and machinability,