EN10219 steel pipes are mainly used in structural applications such as construction, infrastructure development, and building frames. EN10210 steel pipe is widely used in the manufacturing of hollow profiles and has a wide range of applications in mechanical engineering, automotive, and other structural projects. There are many differences between en 10219 and en 10210, as detailed in the article: https://www.yuantaisteelpipe.com/n1889343/What-is-the-difference-between-the-steel-pipes-of-EN10219-and-EN10210.htm