There are a number of reasons why Chinese steel is considered to be poor quality. One reason is that the country has a large number of small-scale producers who often use outdated technology and equipment. This results in lower quality steel products. Additionally, Chinese producers often use lower quality materials and processes than their international counterparts, which also contributes to poorer quality steel. Finally, corruption and lack of government oversight also play a role in the poor quality of Chinese steel as they can lead to sub-standard products being produced and sold.