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Water sustains life. Managing, recycling, and storing it are critical challenges. Tubao, a long-standing partner of ArcelorMittal, has made it its mission to tackle them.

Now, Tubao is taking an extra decisive step towards more sustainable infrastructure by integrating hot dip galvanised XCarb® recycled and renewably produced steel into its galvanised metallic tubes.

Driving innovation in sustainable infrastructure

Based in Saint‑Saëns, Normandy, Tubao has built a strong reputation in France as a trusted supplier of water storage solutions. Today, the company goes one step further. It combines its engineering expertise with low‑carbon steels to help shape the future of civil engineering.

Innovation is at the heart of Tubao’s strategy. The company continuously develops smarter, more efficient solutions for water management and is also actively pioneering ways to reduce the environmental footprint of hydraulic infrastructure.

By choosing ArcelorMittal’s XCarb® steel, Tubao ensures that the core material used in its galvanised pipes and storage systems has a significantly lower embedded carbon footprint. This gives customers a clear advantage in a market where sustainability criteria are increasingly decisive in public tenders and infrastructure projects.

“Thanks to XCarb® recycled and renewably produced steel, Tubao is now producing galvanised metallic tubes with embedded CO₂ reduced by 60% while maintaining structural integrity and corrosion performance,” explains Hadrien Le Flanchec, Head of Business Development at Tubao.

A tangible approach to decarbonisation

Tubao’s commitment goes beyond material selection. The company provides customers with transparent, measurable data to support low‑carbon decision making:

• Environmental impact documented through FDES/INIES verified data
• Demonstrated carbon savings of up to 60% versus standard metallic tubes and 70% compared to conventional concrete alternatives
• Full consideration of steel recyclability at end of life

This data-driven approach allows contractors, engineers, and public authorities to confidently choose more sustainable solutions, backed by clear evidence.

A pioneering mindset

Tubao is not just following the market, it is actively helping to lead the transformation. By combining technical performance, innovation, and environmental responsibility, the company positions itself as a pioneer in the decarbonisation of hydraulic infrastructure.

Its long-term partnership with ArcelorMittal plays a key role in this journey, enabling access to innovative steel solutions like XCarb® and supporting the transition to lower‑carbon construction.

“We believe the infrastructure sector has a real responsibility to decarbonise. By partnering with ArcelorMittal and integrating XCarb® into our product offering, we give our clients a tangible, documented path to lower‑carbon construction, without compromising on technical performance,” concludes Hadrien Le Flanchec.

About Tubao

Tubao is a French manufacturer based in Saint-Saëns, Normandy, specialising in galvanised steel infrastructure for civil engineering, public works, and industrial sites.

Tubao's spiral corrugated steel pipes and underground storage systems are designed for four core applications:

• Stormwater retention & regulation — buried basins that buffer peak rainfall events protecting roads, urban areas, and industrial facilities from flooding while controlling discharge into natural waterways.
• Highway and road drainage — corrugated steel culverts and pipes used in major infrastructure projects to channel runoff safely under roadways and embankments.
• Fire water reserves — large-volume buried tanks providing certified water reserves for industrial and ICPE-classified sites, ensuring fire-fighting capacity without surface footprint.
• Industrial process and rainwater harvesting — closed-loop water storage solutions for industrial sites looking to reduce mains water consumption and meet environmental targets.

From local municipal works to major national infrastructure projects (motorways, ICPE-classified industrial sites, urban developments), Tubao combines proven engineering with a clear environmental commitment.

Text:
© ArcerlorMittal Europe Communications
© Constructalia

Images:
© Tubao

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Coated steel from the XCarb® range, which is made from recycled materials and produced using renewable energy, played a significant role in the construction of the MDC² Park Kraków South complex. This project demonstrates how modern materials can support the development of sustainable logistics.

MDC²: sustainable warehouse property developers

MDC² specialises in the development of modern warehouse and industrial facilities. The company carries out development projects, managing the construction process and letting out space. MDC² consistently delivers eco-friendly buildings across Poland. Their logistics centres are a key element in the commercial property sector's transition towards sustainable development.

One such facility is MDC² Park Kraków South, a transhipment terminal for a leading courier service provider. Located in Skawina, Poland, the 11 000 m² development plays a significant role in the regional logistics system.

Low-carbon-emission steel solutions in practice

For this project, ArcelorMittal Building Solutions supplied Hacierco® roof decking with an underside made from Estetic® organic coated steel from the low-carbon-emissions XCarb® range.

XCarb® products are manufactured in electric arc furnaces using renewable energy and a high proportion of recycled steel. This approach significantly reduces carbon dioxide emissions throughout the entire production process, and the solutions offered support partners in delivering environmentally responsible projects.

BREEAM certification at the highest level

The use of sustainable material solutions had a direct impact on the facility achieving the prestigious Outstanding rating in the BREEAM New Construction certification scheme. This is the highest rating in the BREEAM system and is awarded to buildings that meet the most rigorous criteria for sustainable construction.

Only projects scoring over 85% belong to this select group of the highest-rated buildings. MDC² Park Kraków South's certification confirms its technological advancement, high energy efficiency, and tangible contribution to environmental protection.

Measurable environmental benefits thanks to the use of XCarb® steel

The use of Hacierco® structural roofing sheets with an Estetic® coating made from XCarb® recycled and renewably produced steel has enabled:

• a 68% reduction in CO₂e emissions during the production stage compared with traditional steel
• a reduction in the embedded carbon footprint of over 200 000 kg CO₂e across the entire project

The steel sheets were profiled locally by ArcelorMittal Building Solutions. The main contractor for the project was BREMER.

Text: 
©Constructalia
©MDC²

Images:
©Bremer/MDC²
©ArcelorMittal

Video:
©ArcelorMittal Building Solutions

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XCarb® recycled and renewably produced steel - Park Krakow South Complex (Project)

ArcelorMittal is strengthening its partnership with Vestas through the supply of XCarb® recycled and renewably produced heavy plates for Vattenfall’s new Clashindarroch II onshore wind farm in Aberdeenshire, Scotland. Developed close to the existing Clashindarroch site, the new wind farm will comprise 14 turbines with a total installed capacity of up to 63 MW, enough to deliver clean electricity to around 61 000 UK households each year.

Driving wind energy forward with XCarb® steel

ArcelorMittal's heavy plates will play a key role in the project. All 14 towers of the wind farm will be manufactured using ArcelorMittal's low carbon emissions heavy plates. As part of our commitment to low carbon steelmaking, ArcelorMittal will supply almost 4Kt of XCarb® recycled and renewably produced heavy plates, based on slabs made with a minimum of 95% high quality scrap and 100% renewable electricity. They have a 66% lower carbon footprint than heavy plates made via the conventional blast furnace route, helping wind developers lower the embedded emissions of their assets from the outset.

Raising the bar for sustainable energy infrastructure

Clashindarroch II is the first onshore wind project to incorporate a significant volume of low carbon emissions steel. It reflects ArcelorMittal’s broader ambition to decarbonise value chains and support the expansion of renewable energy. By combining advanced steel expertise with a clear pathway to lower emissions, we are helping to deliver the infrastructure required for a fossil-free future.

Preparatory works began in autumn 2025, and the main construction phase will follow in spring 2026. The first power is targeted for summer 2027.

Text:
© ArcelorMittal Europe Communications
© Constructalia

Images:
© Vestas
© ArcelorMittal

Related link(s)

Clashindarroch II wind farm