HS code 7002.31: Tubes, of fused quartz or other fused silica
Last updated
Key facts
- HS code
- 7002.31
- Covers
- Tubes, of fused quartz or other fused silica
- Chapter
- 70: Glass and glassware
- Edition
- HS2022
- Duty rates
- Set by each country’s tariff
Summary
HS code 7002.31 covers tubes, of fused quartz or other fused silica. It sits in heading 70.02 (glass in balls (other than microspheres of heading 70.18), rods or tubes, unworked) in chapter 70 (glass and glassware). Other goods of heading 70.02 are classified under 7002.10 (balls), 7002.20 (rods), 7002.32 (tubes, of other glass having a linear coefficient of expansion not exceeding 5 x 10-6 per Kelvin within a temperature range of 0 C to 300 C) and 7002.39 (tubes, other).
What this code covers
HS code 7002.31 covers tubes, of fused quartz or other fused silica.
The legal text of the subheading is “Tubes: Of fused quartz or other fused silica”, read under “Tubes”, in HS2022.
What it doesn’t cover
Other goods of heading 70.02 are classified under 7002.10 (balls), 7002.20 (rods), 7002.32 (tubes, of other glass having a linear coefficient of expansion not exceeding 5 x 10-6 per Kelvin within a temperature range of 0 C to 300 C) and 7002.39 (tubes, other).
How it is structured
7002.31 is a six-digit subheading. Its first two digits, 70, are the chapter; the first four, 7002, are heading 70.02; the last two, 31, identify the subheading within the heading.
Countries add their own digits after these six for their national tariff lines.
- Chapter 70
- Glass and glassware
- Within the heading
- Tubes
- Subheading 7002.31
- Of fused quartz or other fused silica
In other countries
No national tariff lines under 7002.31 are live on border.bot yet. Tariffs built on the Harmonized System (HS2022) use 7002.31 at six digits and add their own digits after it.
Frequently asked questions
What does HS code 7002.31 cover?
HS code 7002.31 covers tubes, of fused quartz or other fused silica.
Which heading and chapter is HS code 7002.31 in?
HS code 7002.31 is in heading 70.02 (glass in balls (other than microspheres of heading 70.18), rods or tubes, unworked) in chapter 70 (glass and glassware).
Where are goods of heading 70.02 classified when 7002.31 doesn’t fit?
Other goods of heading 70.02 are classified under 7002.10 (balls), 7002.20 (rods), 7002.32 (tubes, of other glass having a linear coefficient of expansion not exceeding 5 x 10-6 per Kelvin within a temperature range of 0 C to 300 C) and 7002.39 (tubes, other).
Sources and updates
The Harmonized System legal text comes from border.bot release 1 (edition HS 2022), imported from a file, and has been live since 13 October 2026.
This page was last updated on 13 October 2026.
Guidance from published tariff data, not a binding ruling. For a decision customs must follow, apply to the destination’s customs authority for a binding tariff ruling.