Market evolution: Cast iron pressure pipes (CN 73030010) — 2015–2025

Introduction

This report examines the evolution of EU trade in cast iron tubes and pipes used in pressure systems (Combined Nomenclature code 73030010) over the period 2015–2025. The product sits within the broader category of articles of iron or steel (chapter 73) and is mapped to Prodcom code 24.51.20.00, covering tubes, pipes and hollow profiles of cast iron excluding identifiable parts of articles.

The decade under review was marked by three overarching dynamics: a structural decline in EU domestic production, a doubling of import values driven by both volume growth and rising prices, and a significant reorientation of the EU's trade relationships with non-EU partners. While export values grew by 71.7% over the period, this was achieved almost entirely through price increases rather than volume expansion. Meanwhile, imports surged in value by 100.0%, supported by a 31.1% rise in quantity and a 52.5% increase in unit prices.

The following sections analyse these trends in detail, examining the structural shifts in production and pricing, the evolving geography of EU imports, and the deepening integration of EU producers into global trade flows.

1. A Production Crisis Behind Price-Led Value Growth

1.1 EU domestic production contracted by over two-thirds in volume

The most striking structural development over the period was the collapse of EU production. In quantity terms, EU output fell from approximately 1,409 million kg to 447 million kg — a decline of 68.3%. In value terms, production declined from €1,175 million to €760 million, a contraction of 35.4%. The fact that the value decline was smaller than the volume decline reflects a near-doubling of unit production values (from roughly €0.83/kg to €1.70/kg), consistent with broader inflationary trends and a possible shift toward higher-value product mixes.

France dominated EU production throughout the period, accounting for 49.1% of output in 2025, followed by Spain (19.2%), Germany (14.1%), Austria (6.9%), and Italy (3.2%).

1.2 Export values rose 71.7% despite near-flat volumes, driven entirely by price increases

Against this backdrop of declining production, EU export performance appears superficially strong: the total value of extra-EU exports grew from €60.3 million to €103.5 million (+71.7%). However, export quantities barely moved — from 51,207 tonnes to 51,462 tonnes (+0.5%). The entire value increase was therefore driven by rising export prices, which climbed from €1,177/t to €2,012/t (+70.9%).

This pattern suggests that EU exporters maintained their market positions not through expanding volumes but through pricing power — likely reflecting a focus on higher-specification products, inflationary cost pass-through, or reduced competitive pressure from an eroding domestic production base.

1.3 The trade balance swung from surplus to deficit as import prices remained well below export prices

The combination of surging imports and stagnant export volumes produced a decisive shift in the EU's trade balance. In 2015, the EU held a trade surplus of €7.7 million. By 2025, this had turned into a deficit of €1.6 million. Import values doubled over the period — from €52.6 million to €105.1 million — while import quantities rose from 86,169 tonnes to 113,003 tonnes (+31.1%). The import unit price also increased, from €610/t to €930/t (+52.5%), though remaining well below the EU's export price of €2,012/t. This persistent price gap — imports at less than half the unit price of exports — reflects the EU's positioning in higher-value segments of the market.

The EU's net import reliance fluctuated considerably over the period, reaching a maximum (most import-dependent) of +1.95% and a minimum (most self-sufficient) of −10.68%. Meanwhile, the trade intensity of the EU market rose from 12.0% to 32.1%, indicating that trade became a far more important feature of the market even as the underlying market contracted.

2. The Reconfiguration of EU Import Sources

2.1 India retained its position as the leading supplier while Türkiye emerged from obscurity

The geography of EU imports was substantially reshaped over the decade. India remained the single largest source of extra-EU imports, growing from €39.9 million in 2015 to €51.9 million in 2025 (+30.3%). India's dominance in the import market was such that a price shock in 2022 — when Indian import prices surged by 59% with an abnormality score of 13.0 — affected 61.4% of total import value.

The most dramatic shift, however, was the rise of Türkiye. Starting from just €179,000 in 2015, Turkish exports to the EU surged to €29.6 million by 2025 — an increase of 16,409%. This propelled Türkiye from a marginal supplier to the second-largest source of EU imports, overtaking China, Russia, and Switzerland. China and the United Arab Emirates also expanded their presence, growing by 125.3% and 17,690% respectively, while Iran entered the supplier landscape with €1.7 million in 2025.

By contrast, Russia's share collapsed from €2.2 million to €432,000 (−80.3%), consistent with the broader disruption of EU–Russia trade relations following 2022.

2.2 Import concentration declined significantly, reflecting supply diversification

The Herfindahl-Hirschman Index (HHI) for import concentration fell from 5,894 to 3,395 (−42.4%) by value and from 7,081 to 4,120 (−41.8%) by volume. An HHI above 2,500 typically indicates a highly concentrated market; while the import market remained concentrated in 2025, the decline signals meaningful diversification away from the India-centric supply structure of 2015.

This diversification was driven primarily by the rise of Türkiye and the UAE, but also by the growth of China, Iran, and Switzerland as suppliers. The reduced concentration carries mixed implications: it lowers the EU's vulnerability to supply disruptions from any single country, but the entry of suppliers with varying cost structures and regulatory environments introduces new competitive pressures on EU producers.

2.3 Price volatility was concentrated in a handful of smaller or more recent trading partners

The coefficient of variation (CV) in trade values reveals that import volatility was highest among smaller or more recent trading partners, while the dominant suppliers were relatively stable.

On the export side, the EU's most volatile markets — Angola (CV 2.31), Türkiye (CV 2.24), the Democratic Republic of Congo (CV 1.82), and Cambodia (CV 1.53) — are consistent with project-based trade patterns, where infrastructure or energy projects generate large but irregular demand. Detected supply shocks included a Turkish export price shock in 2017 (abnormality 82.6, shift +295%, value share 0.6%) and an Albanian export price shock in the same year (abnormality 27.4, shift +363.6%, value share 2.5%), both likely driven by individual large contracts.

3. Deepening Trade Integration and a Two-Speed European Industry

3.1 France and Spain emerged as the EU's most specialised producers and exporters

Analysis of revealed comparative advantage (RCA) and the Revealed Symmetric Comparative Advantage (RSCA) index for 2025 identifies France as the most specialised EU country in cast iron pressure pipes, with an RCA of 6.28 and an RSCA of 0.73. Spain followed with an RCA of 3.32 and an RSCA of 0.54, and Austria with an RCA of 2.09 and an RSCA of 0.35.

Germany, despite being a major exporter (€28.5 million in 2025, though down 16.2% from its 2015 level of €34.0 million), showed no revealed comparative advantage (RCA 0.66). This indicates that Germany's exports in this product are proportionally small relative to its overall export profile. Italy similarly lacked specialisation (RCA 0.40). The least specialised EU countries — Latvia, Finland, Hungary, Lithuania, and Denmark — all showed RCA values effectively at zero.

3.2 The United Kingdom and Switzerland anchored EU export market growth

The top extra-EU export destinations in 2025 were Switzerland (€34.3 million), the United Kingdom (€20.4 million), and Norway (€11.3 million). Switzerland remained the largest and most stable EU export market, growing 65.0% from its 2015 level of €20.8 million and exhibiting the lowest volatility among major partners (CV 0.17).

The United Kingdom, however, showed the most striking growth: exports surged from €5.1 million to €20.4 million (+302.4%). This may reflect post-Brexit trade dynamics, as the UK's departure from the EU single market reclassified some flows as extra-EU trade, or it may signal genuine demand growth in UK infrastructure. The UK's higher volatility (CV 0.54) suggests some year-to-year irregularity.

Morocco (+829.2%) and Angola (+746.3%) also grew substantially, though both exhibit high volatility consistent with project-driven demand. Morocco's growth likely reflects infrastructure development in North Africa, while Angola's may be linked to oil and gas sector investments.

3.3 EU trade intensity and export propensity more than doubled, signalling a structural market opening

Perhaps the most significant structural indicator is the doubling of the EU's trade intensity — the ratio of total trade (imports + exports) to production — which rose from 12.0% to 32.1% (+167.2%). Export propensity grew even faster, from 6.5% to 20.3% (+212.4%). These increases occurred against a backdrop of collapsing domestic production, meaning that trade volumes became a much larger share of a much smaller market.

This structural opening of the EU market has implications for both competitiveness and vulnerability. On the import side, the EU's reliance on external suppliers grew — particularly from India and Türkiye. On the export side, EU producers became more dependent on non-EU markets — a dynamic that brings opportunities but also exposure to exchange rate fluctuations, geopolitical risks, and demand volatility in third countries.

Conclusion

The EU market for cast iron pressure pipes (CN 73030010) underwent a profound transformation between 2015 and 2025. Domestic production collapsed by 68.3% in volume, while trade became a far more central feature of the market. Export values grew by 71.7% but entirely through pricing power, as volumes remained flat at around 51,000 tonnes. Import values doubled, driven by a combination of volume growth (+31.1%), price increases (+52.5%), and the dramatic entry of new suppliers — most notably Türkiye, which grew from near-zero to become the EU's second-largest import source at €29.6 million.

The EU's import market became significantly more diversified (HHI declined 42.4%), reducing single-source dependency but introducing new competitive pressures. Within the EU, France and Spain emerged as the most specialised producers, while Germany maintained large but unspecialised export volumes. The trade balance shifted from a €7.7 million surplus to a €1.6 million deficit, and trade intensity more than doubled to 32.1%, reflecting a market that is both smaller and far more open than it was a decade ago.

Looking ahead, the key dynamics to monitor include the continued viability of EU domestic production in the face of lower-cost imports, the sustainability of price-led export growth, and the geopolitical and logistical risks associated with growing import dependence on a small number of non-EU suppliers — particularly India and Türkiye.