The mechanical performance of angle steel is reliable. Its yield strength typically ranges from 235 - 345 MPa for common carbon steel angle steel, while the tensile strength is around 375 - 500 MPa. The elastic modulus is approximately 206 GPa, indicating good elasticity and the ability to return to its original shape after the removal of load within the elastic limit. Angle steel also has good fatigue resistance, enabling it to withstand repeated loading without premature failure. Its high hardness and strength make it suitable for applications where durability and stability are crucial, such as in building frames and machinery supports.