7013.10.10.00 - Kitchenware, non-glazed, greater than 75 percent by volume crystalline, of lithium aluminosilicate, having a linear coefficient of expansion not exceeding 10 x 10-7 per Kelvin within a temperature range of 0˚C to 300˚C, transparent, haze-free, exhibiting transmittances of infrared radiations in excess of 75 percent at a wavelength of 2.5 microns when measured on a sample 3 mm in thickness, and containing β-quartz solid solution as the predominant crystal phase 🖩

This HTS classification, 7013.10.10.00, specifically identifies kitchenware crafted from glass-ceramics that meets a stringent set of technical and physical criteria. These items are characterized by their non-glazed surface, a crystalline structure comprising more than 75 percent by volume of lithium aluminosilicate, and exceptional thermal properties, demonstrated by a linear coefficient of expansion not exceeding 10 x 10-7 per Kelvin. Furthermore, the glassware must be transparent, haze-free, and exhibit high infrared transmittance, with specific performance requirements at a wavelength of 2.5 microns. The predominant crystal phase within these materials must be β-quartz solid solution, ensuring durability and resistance to thermal shock, which are critical for kitchen applications.

Distinguishing this subcategory from its sibling, 7013.10.50.00 ("Other"), is the highly specific technical composition and performance standards outlined. While the "Other" category encompasses a broader range of glass-ceramic kitchenware that does not meet these precise specifications, 7013.10.10.00 targets only those articles manufactured to exact scientific parameters. This distinction is crucial for accurate customs valuation and duty assessment, as the advanced material properties of the classified goods often command different market values.

As this is a leaf node within the HTS, there are no further subcategories. Therefore, the focus remains on understanding the precise technical definitions that bring items within the scope of this heading. Importers and exporters should ensure that the product's material composition, thermal expansion, optical properties, and crystalline phase precisely align with the detailed requirements to correctly classify their goods under this specific HTS code.