What is the steel material A633 Gr C carbon steel plate sheet

The size, shape, weight and allowable deviation of Q390D, Q390D-Z35 steel plate should comply with the provisions of GB/ T709-2016. The maximum thickness of the steel plate is 135mm. When the A633 Gr C carbon steel plate sheet, Q390D steel, Q390D-Z35 plate thickness is less than 100 mm, the required performance level in the thickness direction is z25; when the thickness is ≥ 100 mm, the required performance level in the thickness direction is Z35, which shall specifically comply with the provisions of GB/T5313-2010.

Z-direction steel refers to thick steel with good tensile resistance in thickness direction. In the application of steel plate, the reason for additional performance requirements on the thickness direction of steel is due to the existence of defects in the thickness direction of steel in the process of casting and rolling. This defect makes the steel prone to lamellar tearing during welding, which reduces or even loses the design bearing capacity of application. The Z-direction performance is required for A633 Gr C carbon steel plate sheet and so on steel plate with the tensile force along the plate thickness direction greater than or equal to 40mm.

On March 19, 2020 the us international trade commission (ITC) vote on imports from China and India's carbon alloy A633 Gr C carbon steel plate sheet steel screw (Carbon and Alloy Steel Threaded Rod) to make a positive final anti-dumping and anti-subsidy industry damage. All five members of the international trade commission voted in favor of the ruling. The us department of commerce will issue anti-dumping and countervailing duty orders on imports of A633 Gr C carbon steel plate sheet carbon alloy steel screws from China and India, according to the itc's affirmative ruling.