Unimach UCX-2 is essentially a 4100 type alloy with added cobalt and silicon. It can be heat treated to yield strengths of 225,000 to 235,000 psi. It has virtually no notch sensitivity. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on forming, heat treating, machining, and joining. Filing Code: SA-114. Producer or source: Cyclops Corporation.