Q690E is a high-strength low alloy structural steel plate, which is mainly used to manufacture engineering structures used in atmospheric corrosive environments, such as bridges and pylons, etc. Q690E steel plate has excellent properties such as good weather resistance, corrosion resistance, and excellent properties such as tensile strength, yield strength and impact toughness.
Q690E steel plate has excellent mechanical properties with high yield strength and tensile strength, as well as good plasticity and toughness. In general, the yield strength of Q690E steel plate ranges from 270 to 345 MPa, the tensile strength ranges from 470 to 580 MPa, the elongation Greater than or equal to 21%, and the impact toughness Greater than or equal to 47 J/cm^2. These mechanical property parameters ensure the reliability of Q690E steel plate in various engineering applications.
Q690E steel plate has good corrosion resistance and can be used in a variety of corrosive environments. Its corrosion resistance mainly depends on the chemical composition and surface treatment of the steel plate. Since Q690E steel plate contains a certain amount of chromium, this helps to improve its corrosion resistance in oxidising media. In addition, if higher corrosion resistance is required, surface treatment such as galvanisation and chromium plating can be applied to the steel plate to enhance its corrosion resistance.
Q690E steel plate is widely used in various engineering structures, such as bridges, pressure vessels, storage tanks, pipelines and so on. Due to its high strength and good corrosion resistance, Q690E steel plate has become one of the important materials in petrochemical, energy and power, transport and other fields. In addition, it is also widely used in building structures, such as high-rise buildings, to meet the requirements of high strength and corrosion resistance.
