Grade H11 steel is a type of hot work tool steel characterized by its high resistance to thermal fatigue, excellent toughness, and good hardenability. It belongs to the AISI/SAE steel designation system, where “H” indicates it as a hot work tool steel, and “11″ represents a specific composition within that category.
Overall, grade H11 steel is valued for its combination of toughness, thermal fatigue resistance, and hardenability, making it a preferred choice for various industrial applications that involve high temperatures and mechanical stresses.