2020-01-06 10:37:10
About grades of weathering steel
In important high-level projects, the thickness of the steel plate should be appropriately increased ( For example, a steel plate with a thickness of 6 ~ 10 ~ 15mm is used.), Low-grade weathering steels such as Q235NH, Q355NH, middle-grade weathering steels include B480, SPAH, etc., high-grade weathering steels include 09CuPCrNi-A (Q345GNHL), with G Usually means high weathering steel.