Characterization of HY-80 steel to determine trends between mechanical and magnetic properties. Mechanical properties of HY-80 steel will be studied, along with the microstructure, in order to advance non-destructive testing of HY-80 steel temper embrittlement. Temper embrittlement refers to the process by which steel becomes less tough. We hope to be able to non-destructively test for temper emrbittlement using magnetic readings.