EN S355J2 AR equivalent GB standard Q345D HSLA steel is a Chinese GB standard low alloy high strength structural steel, material density is 7.85 g/cm3, tensile strength is 470-630 Mpa, and yield strength is 345 MPa.
According to GB/T 1591, Q345 material has 5 quality grades: Q345A, Q345B, Q345C, Q345D and Q345E. EN S355J2 AR equivalent GB standard Q345D HSLA steel is one of them, popular only less than Q345B among the 5 grades.
EN S355J2 AR equivalent GB standard Q345D HSLA steel provides better mechanical properties or greater resistance to corrosion than carbon steel. EN S355J2 AR equivalent GB standard Q345D HSLA steel shall be done charpy V-notch impacting test under minus 20 centigrade.
EN S355J2 AR equivalent GB standard Q345D HSLA steel is made with a hot-rolling process, and used for a number of manufacturing purposes, such as construction of bridges, highway construction and other engineering construction.
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