HS Code for Unworked glass tubing

Unworked glass tubing is classified under HS code 7002.39, which serves as a residual category for glass in tubes that do not meet the specific criteria of other subheadings. To be classified here, the glass must be 'unworked,' meaning it has not been bent, sealed, ground, or otherwise processed after the initial drawing process. Furthermore, this code specifically excludes glass with a low linear coefficient of expansion (not exceeding 5 x 10^-6 per Kelvin) and fused quartz or other fused silica. Therefore, 7002.39 typically covers soda-lime glass, lead glass, or certain borosilicate glasses that have a higher expansion coefficient. The classification is based on the physical form (tubular) and the chemical/thermal properties of the glass. This code is essential for the laboratory supply and lighting industries, where glass tubes are imported as raw materials to be later transformed into test tubes, neon lights, or pharmaceutical ampoules.

Products Included

• Soda-lime glass tubes
• Lead glass tubing for electronics
• Borosilicate glass tubes with expansion > 5x10^-6
• Unworked glass pipes for industrial use
• Standard clear glass tubing

Common Misclassification

The most common misclassification is with HS code 7002.31 (fused quartz) or 7002.32 (low expansion glass). Importers must verify the linear coefficient of expansion; if it is 5 x 10^-6 or less, it must be classified under 7002.32. Another frequent error is classifying these tubes under HS code 7017, which covers laboratory, hygienic, or pharmaceutical glassware. However, 7017 is only for finished or 'worked' glassware. If the tube is merely a raw, unworked length of glass, it must remain in 7002.39.

FAQ

What is the HS code for unworked glass tubing?

The HS code for unworked glass tubing (other than fused silica or low-expansion glass) is 7002.39.

Does 7002.39 include tubes cut to specific lengths?

Yes, as long as the ends are not further worked (like being rounded or sealed), simple cutting to length generally does not remove the product from the 'unworked' category of 7002.