Lusosider - Aços Planos
Steel and steel products · Seixal, Setúbal, Portugal
About Lusosider - Aços Planos
Lusosider - Aços Planos, at Aldeia de Paio Pires, Seixal, is Portugal's only domestic producer of flat steel products: pickled and oiled sheet, cold-rolled and galvanised sheet. Founded in the late 1960s alongside Siderurgia Nacional and privatised in 1996, it now belongs to Brazil's CSN group and supplies construction, industry and automotive customers.
Its output serves structures, cladding, machinery and industrial uses where mechanical strength, weldability and material traceability matter. Supply is organised by format, thickness and finish, with technical documentation that helps integrate the steel into construction and industrial projects.
For architects, engineers and contractors, the value of a steel supplier lies in stock availability, cutting accuracy and on-time delivery. Before specifying, it is worth confirming formats, grades, treatments and lead times, especially for structural or large-format pieces.
Its output serves structures, cladding, machinery and industrial uses where mechanical strength, weldability and material traceability matter. Supply is organised by format, thickness and finish, with technical documentation that helps integrate the steel into construction and industrial projects.
For architects, engineers and contractors, the value of a steel supplier lies in stock availability, cutting accuracy and on-time delivery. Before specifying, it is worth confirming formats, grades, treatments and lead times, especially for structural or large-format pieces.