CBAM 2026: EU CBAM, UK CBAM and the Pipe Supply Squeeze

1 day ago
6 min read

Pipe buyers are facing one of the toughest procurement markets in years.

Steel pipe is being affected by EU CBAM, cast iron pipe is also caught by CBAM carbon rules, UK CBAM is now firmly on the horizon, and plastic pipe is being squeezed by disruption to petrochemical feedstocks linked to the Iran war.

Container ship in port representing global supply chain disruption, rising freight costs and longer lead times affecting pipe prices.

In normal market conditions, buyers could often move between steel, cast iron and plastic pipe depending on cost, specification and availability. That flexibility is now disappearing. There are very few pipe options that are not being seriously squeezed, and that raises the risk of shortages, longer lead times and serious jumps in costs.

For contractors, installers, facilities teams and procurement departments, the message is simple: waiting too long to secure supply could become expensive.

What is CBAM?

CBAM stands for Carbon Border Adjustment Mechanism. In simple terms, it is a carbon-pricing system applied to certain imported goods, designed to make sure imported products face a carbon cost comparable to products made under domestic carbon-pricing rules.

The European Commission describes the EU’s Carbon Border Adjustment Mechanism as a tool to put a fair price on carbon emitted during the production of carbon-intensive goods entering the EU. The EU CBAM applies in its definitive regime from 2026, after a transitional phase between 2023 and 2025.

EU CBAM and CBAM EU rules: why steel pipe is under pressure

The EU CBAM definitive period started on 1 January 2026. EU importers, or their indirect customs representatives, importing more than 50 tonnes of CBAM goods into the EU must apply for authorised CBAM declarant status, buy CBAM certificates and declare embedded emissions.

The price of CBAM certificates is linked to EU ETS allowance prices.

That matters directly for steel pipe.

The CBAM goods list includes several pipe-related iron and steel categories, including cast iron tubes and pipes, seamless iron or steel tubes and pipes, welded or similarly closed tubes and pipes, other tubes and hollow profiles, and tube or pipe fittings.

For buyers, the effect is clear. Imported steel pipe is no longer just a question of base material price, freight and availability. It now carries carbon reporting, carbon-cost exposure and additional administrative risk.

This is where Moduquip can help customers take a more planned approach. In a market where prices are moving and availability is tightening, early conversations around pipe requirements, specifications and alternatives can make a major difference to project certainty.

Cast iron pipe is not a simple escape route

One of the most important points for buyers is that cast iron pipe is also caught by CBAM.

The EU CBAM goods list specifically includes CN 7303 00 – tubes, pipes and hollow profiles, of cast iron. That means cast iron pipe is not outside the CBAM carbon environment. It may have different technical, project or installation advantages in some applications, but it should not be treated as a simple workaround for CBAM-related cost pressure.

This is a key issue for buyers who might otherwise think: “If steel pipe gets expensive, we’ll just switch to cast iron.” In many cases, that switch may not remove the carbon-cost and import-pressure problem. It could also create extra demand in the cast iron market, adding more pressure to availability and lead times.

UK CBAM and CBAM UK rules: the next pressure point

The UK CBAM is also becoming a major issue for pipe buyers. The UK Government has confirmed that it will introduce a Carbon Border Adjustment Mechanism from 1 January 2027. It will apply to specified imported goods in sectors including aluminium, cement, fertiliser, hydrogen and iron and steel.

The UK position is especially relevant for anyone buying pipe into the UK market. Government documents confirm that the UK CBAM product scope will be based on commodity codes, and the UK’s published scope includes 7303 00 – tubes, pipes and hollow profiles, of cast iron, along with other iron and steel pipe categories.

That does not mean every order will immediately become more expensive by the same amount. The effect will depend on product classification, origin, embedded emissions, supplier data and how costs are passed through the chain. But it does mean buyers should start asking better questions now.

Plastic pipe is being squeezed for a different reason

Plastic pipe is not being hit in the same way as steel or cast iron pipe. The issue is not CBAM carbon cost. The pressure on plastic pipe comes from petrochemical supply, resin availability, oil-derived feedstocks, shipping disruption and freight volatility.

The conflict involving Iran and disruption around the Strait of Hormuz have put pressure on global energy and petrochemical supply chains. The Guardian reported that maritime traffic through the Strait of Hormuz was effectively closed after escalation in the Iran conflict, with the route carrying around 20% of global seaborne crude oil and around 20% of seaborne gas tankers. It also reported that freight costs surged and major shipping companies rerouted vessels.

Those issues matter for plastic pipe because many plastic pipe systems depend on oil and gas-derived inputs such as polyethylene, polypropylene and PVC-related feedstocks. Disruption to naphtha and resin markets can quickly feed into higher raw material costs, shorter quote validity and longer lead times.

Recent reporting has already shown petroleum-derived input disruption affecting wider manufacturing. For example, The Guardian reported that Japan’s Calbee moved some products to black-and-white packaging because of disrupted supplies of naphtha, an oil-derived ingredient used in ink. Resin supply disruption has also been reported, with Pact Group warning of severe disruption to resin supplies, force majeure claims by suppliers and rapid resin price increases linked to the Middle East conflict and the effective closure of the Strait of Hormuz.

For plastic pipe buyers, the practical result is simple: plastic is not the safe, stable fallback it might have been in previous steel price spikes.

No major pipe material is escaping the squeeze

This is what makes the current market so difficult.

Steel pipe is being squeezed by EU CBAM, CBAM 2026 costs and carbon reporting. Cast iron pipe is also included in CBAM goods lists, so it is not a clean escape route. Plastic pipe is being squeezed by petrochemical disruption, resin pressure, freight cost increases and instability linked to the Iran war.

That means there are currently no mainstream pipe options that are not under serious pressure.

The likely consequences are:

shorter supplier quote validity
longer lead times
more frequent price changes
tighter stock availability
more pressure on popular pipe diameters and specifications
greater risk of project delays
serious jumps in costs where buyers wait too long

This is exactly the kind of market where Moduquip can add value: helping customers think ahead, review their requirements early and avoid leaving pipe procurement until the point where availability has already tightened.

What buyers should do now

The most important step is to plan earlier than usual.

Pipe buyers should review upcoming requirements, confirm material specifications, check whether steel, cast iron or plastic alternatives are technically acceptable, and understand which commodity codes may apply. Where CBAM exposure may be relevant, product classification and origin should be checked carefully.

Buyers should also avoid assuming that historical pricing patterns still apply. A quote from last year, or even last quarter, may no longer reflect the real cost of replacement stock.

For larger projects, it may be sensible to secure key pipe requirements earlier, split orders where appropriate, or speak to suppliers about availability before final project sign-off. In the current market, procurement timing may be just as important as material selection.

The bottom line

The pipe market is being squeezed from every direction.

EU CBAM and CBAM EU rules are affecting steel and cast iron imports. UK CBAM and CBAM UK requirements are creating the next wave of carbon-related pressure for the UK market. At the same time, plastic pipe is being affected by petrochemical disruption linked to the Iran war.

There is no obvious pipe material sitting safely outside the pressure zone.

For buyers, the safest approach is to act early, communicate clearly and avoid assuming that an alternative material will remain available or affordable. Speak to Moduquip as early as possible in the procurement process so we can help you understand the options, manage lead-time risk and secure the best available route through a very difficult market.