Q460GJC steel plate is a grade in the national standard steel for high-rise buildings, and GJ means high-rise building. C is a level display of it. This grade is widely used in the construction of high-rise buildings because it has good performance and can add some other performances according to the needs of customers.
Mechanical properties of Q460GJC steel
The thickness of the sample used in the experiment is: 25mm
Tensile strength σb (MPa): ≥550
Yield strength σs (MPa): ≥460
Elongation δ5 (%): ≥17
Reduction of area ψ (%): ≥40
Impact energy (longitudinal) Akv (J): ≥34
Yield ratio: ≥0.85
Chemical composition of Q460GJC steel plate (element composition: wt%):
In order to improve the performance of the steel plate, microalloying elements V, Nb, Ti, etc. can be added. When added separately, the content of microalloying elements should not be lower than the lower limit listed in the table; if mixed, the lower limit content in the table not applicable. When mixed and added, the sum of V, Nb, and Ti is not more than 0.22%.
Q460GJC steel plate is used to construct high-rise and important building structure steel. It is required to have high impact toughness, sufficient strength, good welding performance, a certain yield ratio, and thickness direction performance when necessary.
Q460GJC steel plate is widely used in the manufacture of high-rise building structures, long-span structures and other important building structures.
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