# What are the UK CBAM default values for aluminium tubes and pipes?

Canonical: https://senseible.earth/answers/uk-cbam-aluminium-tubes-default

As-extruded alloy tube and pipe (7608 20 81) has the lowest UK CBAM default in heading 7608: 2.984 tCO2e per tonne. Welded alloy tubes (7608 20 20) are 4.816, other alloy tubes, such as drawn ones (7608 20 89), 3.359, and non-alloy tubes (7608 10 00) 4.556.

## Defaults

- 7608 10 00: tubes and pipes of non-alloy aluminium: 4.556 tCO2e per tonne.
- 7608 20 20: alloy, welded: 4.816.
- 7608 20 81: alloy, not further worked than extruded: 2.984.
- 7608 20 89: other alloy tubes: 3.359.
- 7609 00 00: tube or pipe fittings: 4.349.

## Drawing adds 0.375

An extruded alloy tube that is then drawn to size moves from 2.984 to 3.359. Welded alloy tube from strip carries 4.816, the highest of the alloy codes.

## Tube or hollow profile

Heading 7608 excludes hollow profiles, which go under 7604 21 00 at 3.894. Check on the UK Trade Tariff whether a square or shaped section is a tube or a hollow profile.

## Heat exchanger tube for a UK HVAC maker

- 12 t of drawn alloy tube, 7608 20 89: 12 x 3.359 = 40.308 tCO2e.
- 8 t of as-extruded alloy tube, 7608 20 81: 8 x 2.984 = 23.872 tCO2e.
- Total on defaults: 64.180 tCO2e.

## What Senseible does here

Senseible reads billet and strip purchases with your press and drawing furnace fuel, so each tube line's figure can be set against its default. We build the figure from your records and check every figure in-house; for the UK it must then be verified by a verifier accredited for UK CBAM. Have your own verifier? Send it to them.

- [UK CBAM for Indian exporters](https://senseible.earth/cbam)
- [UK CBAM aluminium billet defaults](https://senseible.earth/answers/uk-cbam-aluminium-billet-ingot-default)
- [UK CBAM aluminium profile defaults](https://senseible.earth/answers/uk-cbam-aluminium-profiles-default)

Sources: [HMRC, UK CBAM aluminium default values (published 16 October 2026)](https://www.gov.uk/government/publications/check-the-default-values-for-the-carbon-border-adjustment-mechanism-cbam/aluminium-default-values), [HMRC, Goods within the aluminium sector in scope of UK CBAM](https://www.gov.uk/government/publications/check-which-goods-are-in-scope-of-carbon-border-adjustment-mechanism-cbam/goods-within-the-aluminium-sector)

Last reviewed 2026-11-03.