Foundry
Sheffield Forgemasters operates one of the world’s largest steel foundries, built for the production of heavy, high-integrity castings where performance cannot be compromised. We manufacture components up to 350 tonnes from initial steel volumes exceeding 600 tonnes, using bottom-pour ladles to minimise slag and ensure consistently clean results.
Casting capability at our foundry
We produce castings up to 350 tonnes using up to 600 tonnes of liquid steel, poured via bottom-pour ladles to reduce slag and ensure clean results. In-house sand moulds support complex geometries up to 15m long and 8.5m in diameter, built for critical performance.
Experience in steel castings
10,000t
Annual capacity of delivered product
Steel castings from
1-350t
Sand mould making
We produce all sand moulds in-house, starting with bespoke wooden patterns crafted by our own pattern shop.
These are used to form hardened sand moulds shaped to precise specifications, supporting repeatability, dimensional accuracy and the complex geometries required for large-scale, high-integrity steel castings.
Quality & Testing
All castings undergo rigorous inspection using our in-house NDT team and full suite of surface and volumetric testing methods.
Our ASME and EN coded welders carry out any required repairs or fabrication, ensuring each casting meets the critical safety and performance standards expected in sectors like Nuclear and Defence.
Expertise & Materials
With over 250 years of steel casting experience, Sheffield Forgemasters specialises in complex, high-integrity components made from advanced steel grades.
Our expertise spans every stage from design to delivery, including the production of HY80, HY100 and NQ1 grade castings at sizes and thicknesses few foundries can match.
Discover Our Full Capabilities
Need detailed specifications? View and download our latest brochures, certification documents, and technical guides to see how we deliver the world’s most critical components.
