HS Code for Rigid PP tubing

Rigid PP tubing is classified under HS code 3917.22. This classification follows the General Rules for the Interpretation of the Harmonized System (GRI), specifically GRI 1 and 6. Heading 3917 covers plastic tubes and pipes. Within this heading, the code 3917.22 is reserved for rigid products made from polymers of propylene. Polypropylene is a thermoplastic polymer used in a wide variety of applications, including chemical processing and hot water distribution. In the context of piping, PP is valued for its chemical resistance and thermal stability. To qualify for this code, the tubing must meet the definition of "rigid" provided in the Chapter 39 notes, meaning it cannot be easily coiled or bent without structural failure or permanent deformation at room temperature. The classification is determined by the predominant polymer by weight; if the tube is a copolymer where propylene is the main component, 3917.22 remains the correct designation.

Products Included

• Polypropylene Random Copolymer (PP-R) rigid pipes
• Rigid PP tubes for chemical transport
• Polypropylene Homopolymer (PP-H) industrial piping
• Rigid PP laboratory drainage tubes
• High-temperature resistant PP rigid tubing

Common Misclassification

The most common misclassification occurs with HS code 3917.21 (PE tubing) or 3917.23 (PVC tubing) when the specific polymer type is not clearly identified on shipping documents. Furthermore, if the PP tubing is flexible enough to be coiled, it should be classified under 3917.32 or 3917.39. It is also important to distinguish these from 3917.10, which covers artificial guts (sausage casings) of hardened protein or cellulosic materials, though this is less common in industrial contexts.

FAQ

What is the HS code for Rigid PP tubing?

Rigid tubing made from polymers of propylene is classified under HS code 3917.22.

Can PP-R pipes for plumbing use this code?

Yes, as long as the PP-R pipes are rigid and not reinforced with other materials like metal or glass fiber, they fall under 3917.22.