In recent years,the use of advanced high strength steels in automotive industry has been increased remarkably.Among advanced high strength steels,dual phase(DP) steels have gained a great attention owing to a combination of high strength and good formability.However,high strength usually increases the spring-back behavior of the material,which creates problems for the parts during the assembly.Thus,the uniaxial tensile deformation and spring-back behaviors of DP600 advanced high strength steel were investigated in rolling(0°),diagonal(45°),and transverse(90°) directions in the temperature range from room temperature(RT) to 300 ℃.All tests were performed at a deformation speed of 25 mm/min.A V-shaped die(60°) was used for the spring-back measurements.The results indicated that the formability and spring-back of the material were decreased with increasing the temperatures.The material showed complex behaviors in different directions and at different temperatures. High-strength steels, dual phase (DP) steels have gained a great attention owing to a combination of high strength and good formability. However, high strength usually increases the spring-back behavior of the material, which creates problems for the parts during the assembly.Thus, the uniaxial tensile deformation and spring-back behaviors of DP600 advanced high strength steel were investigated in rolling (0 °), diagonal ( 45 °), and transverse (90 °) directions in the temperature range from room temperature (RT) to 300 ° C. All tests were performed at a deformation speed of 25 mm / min. A V- shaped die (60 °) was used for the spring-back measurements. The results indicated that the formability and spring-back of the material were decreased with increasing the temperatures. The material showed complex behaviors in different directions and at different temperatures.