Thermal fatigue steels are alloys designed to withstand cyclic thermal stresses, such as those generated by rapid temperature changes or exposure to high temperatures. These steels are ideal for applications where materials are subjected to repeated thermal stress, such as in turbines, internal combustion engines, and the aerospace industry. The main characteristics of thermal fatigue steels include good resistance to oxidation and corrosion, along with resistance to plastic deformation under thermal load. They are primarily used in components that operate under high temperature conditions and thermal cycles, such as turbine blades, engine cylinder heads, and industrial plant parts, where maintaining dimensional stability and strength even in extreme temperatures is essential. Thanks to specialized heat treatments, these steels offer superior performance and long durability even in high-temperature environments.