Generally, it is easy to distinguish between steel billets and steel products. However, for some steel billets with the same specifications and purposes as steel products (such as rolling pipe billets), they can be distinguished by whether they are used by other industries, whether they are processed by steel processing processes, and whether they are processed by finished rolling mills.

Billet refers to semi-finished products used to produce steel, which cannot be directly used by society. Billet and steel are strictly divided according to the standard, which cannot be determined by whether it is the final product of the enterprise, but should be implemented according to the unified standard of the whole society.