KO35

KO35 is a designation sometimes used to refer to the high-strength steel alloy also known as Maraging 350. This steel is a low-carbon, high-nickel alloy that undergoes a precipitation hardening process to achieve its exceptional mechanical properties. Its composition typically includes around 18% nickel, 8-9% cobalt, 5% molybdenum, and trace amounts of titanium and aluminum. This specific formulation allows KO35 to attain a tensile strength exceeding 200,000 psi while maintaining good ductility and toughness.

The heat treatment process is crucial for developing the properties of KO35. It typically involves solution annealing followed by aging at elevated temperatures. This process results in the formation of intermetallic compounds within the steel matrix, which significantly strengthens the material. Due to its unique combination of high strength, toughness, and good weldability, KO35 finds application in demanding environments. It is commonly used in aerospace components, tooling, high-performance shafts, and in industries requiring materials that can withstand significant stress and fatigue. The "350" in Maraging 350 refers to its approximate yield strength in thousands of psi.