7 Steel UK

7 Steel UK is the UK’s leading producer of low-carbon, circular steel, transforming UK-sourced scrap into high-quality steel reinforcement and long section products.  The UK Group consists of our Manufacturing, Service, and Recycling Divisions; and at the heart of our operations, our Electric Arc Furnace (EAF), which is the cleanest and most energy-efficient steel production technology available, delivering up to 80% lower CO₂ emissions compared to traditional blast furnace methods. 

Formerly Allied Steel and Wire, then Celsa Group since 2003, we enter a new era in 2025, with the acquisition and investment by Sev.en GI.  7 Steel UK is proud to continue Cardiff’s steelmaking legacy, representing the next generation of British steelmaking and leading the transition to a low-carbon, circular steel economy. 

Our high-quality steel supports the UK’s renewable energy infrastructure, including landmark developments such as Hinkley Point C and the Clyde Windfarm.  We support the growing hydrogen economy amongst other innovative energy projects and by contributing to these advancements, 7 Steel UK has a key role in the UK’s energy security, helping achieve its climate goals.

Within the Built Environment, in collaboration with strategic partners and our Group fabricators BRC, ROM and Express, 7 Steel has contributed to some of the UK’s most iconic projects, including Wembley Stadium, London’s Olympic Park, Crossrail, Heads of the Valleys, and HS2.  

Recycling is at the core of our circular steel model.  We source only UK scrap, from merchants and direct from industry sectors such as demolition, construction, engineering, vehicle breakers, retail, waste companies and municipal bodies. 

Our direct relationships with scrap producers, ensures scrap metal is retained within UK steelmaking and supports our industry partners, demonstrating they are recycling their scrap in the UK and not losing it to overseas export.

We operate four processing scrap yards across the UK, strategically located to serve regional suppliers and national industrial partners and in July 2024, we commissioned a state-of-the-art scrap shredder at our Cardiff facility, a significant investment in innovation and circularity. This advanced plant enables us to recover more material from mixed, complex waste streams, improving scrap quality and reducing contamination before it enters our EAF. 

As global supply chains become increasingly volatile, localised recycling and supporting our UK circular economies has never been more important. By investing in domestic infrastructure and processing, 7 Steel UK is reinforcing the sustainable resilience of the UK’s steel supply and reducing dependence on imported materials.