demand driver
Solar and wind bring different demands Solar installations present a different set of conditions. Equipment is spread across large sites and exposed to the weather for years. Fasteners, mounting components and cable-management systems may be modest items individually, but their durability matters across an installation expected to remain in service for 25 years or more. Stainless steel has a role in these applications where the exposure conditions and maintenance requirements support its use. It should not be assumed that every solar structure requires stainless steel; the choice has to make engineering and commercial sense for the site. Concentrated solar power adds the demands of elevated temperatures and thermal cycling. Here, material selection for heat-transfer piping, tanks and process equipment must account for the operating temperature and the medium being handled. Corrosion resistance alone is not enough to establish suitability. Wind energy brings coastal exposure into sharper focus. Salt-laden air and moisture can make corrosion a persistent maintenance concern, particularly where components are difficult to reach. Stainless steel can be used in fasteners, hydraulic equipment and access components, with grade selection reflecting the severity of exposure. Duplex grades of stainless steel offer a combination of strength and resistance to pitting and crevice corrosion that can be useful in aggressive environments. Even so, the specification needs to address the actual conditions, including locations where moisture and salts may collect. A broad description such as “coastal” is only a starting point. “Green hydrogen offers a potentially significant market for stainless steel equipment, but the scale and timing of local demand will depend on projects moving into construction and operation.” Hydrogen warrants closer attention Green hydrogen offers a potentially significant market for stainless steel equipment, but the scale and timing of local demand will depend on projects moving into construction and operation. For fabricators, that distinction is important when assessing where to commit capacity and develop skills. The production chain brings together several applications, from water treatment and electrolysers to compression, storage and process piping. Each places its own demands on materials. Pressure, temperature, cleanliness and the behaviour of materials in contact with hydrogen all need to be considered. Stainless steel has an established role in parts of this chain, but there is no single grade suitable for every hydrogen application. In particular, high strength and corrosion
Stainless steel applications in nuclear facilities include cooling circuits, heat exchangers, pumps, valves and piping. Austenitic grades such as 304L and 316L are used in appropriate applications for their corrosion resistance and weldability, although material requirements vary considerably between systems. For suppliers, the attraction of this market comes with exacting requirements. The opportunity is tied to the ability to deliver components to the required specification, with the fabrication quality and documentation that nuclear work demands. Longevity is an engineering requirement here, rather than a general selling point. “Duplex grades of stainless steel offer a combination of strength and resistance to pitting and crevice corrosion that can be useful in aggressive environments.”
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Issue 4 – 2026
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