This specific alloy steel designation represents a chromium-molybdenum steel known for its weldability, machinability, and high strength. Common applications include aircraft components, automotive parts, and other demanding structural applications where a balance of strength and workability is required. The numerical designation “4130” signifies the specific chemical composition within the broader AISI/SAE steel classification system.
The blend of strength, toughness, and ductility in this material makes it ideal for applications requiring resistance to stress, fatigue, and impact. Historically, this alloy has played a vital role in advancements in aerospace and motorsports due to its reliable performance under demanding conditions. Its ability to be heat-treated further enhances its mechanical properties, tailoring it to specific design requirements. This adaptability contributes significantly to its widespread use in diverse engineering fields.