摘要
The total oxygen content and the behavior of non-metallic inclusions were studied systematically for steel Q345 D.The production process of steel Q345 Dis BOF→argon stirring in ladle→slab casting at Wuhan Iron and Steel(Group)Co.The following results were obtained:the total oxygen of slab is 0.000 9 %-0.001 2%,and the number of micro-inclusions is 1.63-2.03mm-2,while the amount of the macro-inclusions in one kilogram steel is 0.495 mg.
The total oxygen content and the behavior of non-metallic inclusions were studied systematically for steel Q345 D.The production process of steel Q345 Dis BOF→argon stirring in ladle→slab casting at Wuhan Iron and Steel(Group)Co.The following results were obtained:the total oxygen of slab is 0.000 9 %-0.001 2%,and the number of micro-inclusions is 1.63-2.03mm-2,while the amount of the macro-inclusions in one kilogram steel is 0.495 mg.
