HS Code for Borosilicate glass tubes

Borosilicate glass tubes are classified under HS code 7002.32. This code is part of Chapter 70, which covers glass and glassware. Heading 7002 specifically addresses glass in the form of balls, rods, or tubes that are 'unworked,' meaning they have not been further processed into finished articles. Subheading 7002.32 is distinguished by the chemical composition and physical properties of the glass. Specifically, it must have a linear coefficient of expansion not exceeding 5 x 10^-6 per Kelvin within a temperature range of 0 to 300 degrees Celsius. This low expansion coefficient is characteristic of borosilicate glass, which is highly resistant to thermal shock. These tubes are typically used as raw materials for the production of laboratory glassware, pharmaceutical ampoules, and industrial piping. The classification requires technical documentation or testing to confirm the expansion coefficient, as this is the primary differentiator from other types of glass tubes.

Products Included

• Unworked borosilicate glass tubing
• Low-expansion glass tubes for labware production
• Neutral glass tubes for pharmaceutical packaging
• Pyrex-type glass tubes in unworked lengths

Common Misclassification

A common misclassification is HS code 7002.31, which is reserved for fused quartz or other fused silica tubes. Another frequent error is 7017, which covers laboratory, hygienic, or pharmaceutical glassware that has been 'worked' (e.g., graduated, stoppered, or shaped into a specific tool). If the glass tube has a higher expansion coefficient, it falls under 7002.39. Finished glass products, even if made of borosilicate, are classified according to their function rather than as raw tubes.

FAQ

What is the HS code for Borosilicate glass tubes?

The HS code for unworked tubes of glass with a linear coefficient of expansion not exceeding 5 x 10^-6 per Kelvin (0-300°C) is 7002.32.

What does 'unworked' mean for glass tubes?

Unworked means the glass is in its original manufactured form of a tube and has not been cut to specific shapes for final use, bent, or otherwise fabricated into a finished product.