3901.10.50.30 - Medium density polyethylene

This HTS classification covers medium density polyethylene (MDPE) in its primary forms. MDPE is a type of polyethylene characterized by a specific gravity of less than 0.94 and a density that falls between that of low-density polyethylene (LDPE) and high-density polyethylene (HDPE). It is typically supplied as pellets, granules, powders, or lumps and is a versatile thermoplastic polymer used in a wide range of applications.

This category is distinguished from its siblings by its specific density range. Linear low-density polyethylene (3901.10.50.10) possesses a lower specific gravity and molecular structure. Low-density polyethylene, except linear low-density polyethylene (3901.10.50.20), generally has a higher degree of branching, resulting in lower density and distinct physical properties. Medium density polyethylene occupies the intermediate range, offering a balance of flexibility, strength, and stress crack resistance.

As this is a leaf node, there are no further subcategories. Classification within this heading relies on confirming the material is polyethylene and that its specific gravity is less than 0.94, with its density falling into the medium range, distinct from the lower density polyethylene types covered by the preceding subheadings. This material is often used for applications requiring greater rigidity and strength than LDPE, such as pipes, films, and some molded articles.