Super Austenitic Beams for Luxury Pool Structures

Chlorinated water is one of the harshest environments a structural profile can live in, and in a high end private pool the same profile is also part of the design that the client looks at every day. For a project of this kind Montanstahl supplied special beams in stainless steel 1.4547, known as 254 SMO, measuring between 5,023 and 5,033 mm, with a curved shape and two different end treatments, one rounded for safety and one squared for appearance. The geometry and the rounded edges were laser cut directly from the sheet before the section was assembled.

Aerial view of an outdoor pool with sun loungers

Longevity, Low Maintenance and Modern Design

High end private swimming pools call for durable, corrosion resistant materials that hold both structural integrity and visual quality over time. Constant exposure to chlorinated water, together with humidity and temperature swings, accelerates the degradation of most materials, which is what makes a high performance alloy essential rather than optional. Safety carries equal weight, since smooth transitions and rounded edges are what prevent injuries around a wet surface where people walk barefoot. Luxury pool construction therefore has to combine longevity, low maintenance and modern design in the same component, with every element meeting strict technical and aesthetic standards at once. It is the same brief that governs exposed structural work in architecture and construction, where the profile is simultaneously a load path, a visible surface and something people come into contact with.

A Curved Beam With Two Different Ends

The project raised difficulties across design, durability and safety together. The profiles needed precision forming with a curved shape and two different end designs, one rounded for safety and one squared for appearance, so a single bar has to change character from one end to the other while the curve running through it stays true. Continuous contact with chlorinated water demanded a high performance stainless steel, because chloride attack is localised and progressive, and pitting that starts invisibly ends as a stain and then as a structural concern. The rounded edge had to reduce the risk of injury while preserving a sleek, modern line, which rules out a radius added as an afterthought by grinding, since that leaves a visible transition and a surface finish that never quite matches the rest of the profile. The three requirements meet in the same detail, where the safety feature, the visible geometry and the corrosion behaviour all depend on how the edge is produced.

Curved beam in the manufacturing workshop
Custom super austenitic profile in the workshop

Application Context

Montanstahl supplied the profiles in stainless steel 1.4547, a super austenitic grade with high molybdenum and nitrogen content that gives it markedly better resistance to chloride induced pitting and crevice corrosion than standard austenitic grades, which is what a permanently chlorinated environment requires. The bars measure between 5,023 and 5,033 mm and were laser cut to obtain both the complex geometry and the specified rounded edges directly from the sheet, so the safety radius is part of the cut profile rather than a finishing operation added later. The sections were then laser welded and machined, a sequence that held tight tolerances while preserving structural integrity and safety, and delivered a custom result meeting the technical and aesthetic standards of the project. Beams of this kind are developed as special profiles from the architect’s drawing, and questions on grades and geometries are answered in the technical Q&A.

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