The need for high energy density actuators that are simple and reliable is rapidly increasing as today's aerospace industry is aiming towards larger, lighter, and higher fuel efficiency aircraft. Shape memory alloy (SMA) actuators have been shown to possess potential for actuator applications due to unique material behavior.  Currently data used in SMA actuator design and analysis is usually obtained from uniaxial thermo-mechanical testing under isotropic assumption. However, it is hypothesized that SMA materials exhibit anisotropic behavior. This paper focuses on understanding the thermo-mechanical response of SMA tubes under combine load. A series of tension, torsion, and combine tension-torsion experiments have been performed on four shape memory alloy torque tubes. Young's modulus and shear modulus relation are compared to determine anisotropy in both the martensite and austenite phase. Transformation strain and transformation temperature obtained from pure tension, pure torsion, and combine loading tests are presented. Effect of stress direction, stress magnitude, and temperature cycling on performance are explored.