In numerous industrial settings, equipment is continuously exposed to highly corrosive media such as acidic chemicals, chlorides, and elevated temperatures. These harsh conditions can quickly degrade standard stainless steels, leading to frequent downtime, costly maintenance, and compromised safety. To overcome these challenges, industry leaders turn to advanced materials specifically engineered for resilience. Among these,
Alloy 28 stands out as a premier nickel-iron-chromium alloy designed to deliver exceptional performance where other materials fall short.
The superior performance of Alloy 28 stems from its carefully balanced chemical composition. As a super-austenitic stainless steel, it contains significantly higher amounts of chromium, nickel, and molybdenum compared to standard grades, supplemented with copper. This formulation results in an exceptionally high Pitting Resistance Equivalent Number (PREN), consistently exceeding 40, which provides outstanding resistance to localized corrosion like pitting and crevice attack. Moreover, it maintains excellent resistance to a wide range of acids, including sulfuric and phosphoric acid, making it structurally reliable even under aggressive conditions.
This robust corrosion resistance translates directly into real-world reliability across critical industries. In chemical and petrochemical processing, alloy 28 is specified for pumps, valves, and piping systems that handle corrosive fluids. Within oil and gas production, it provides dependable service in sour gas environments, offering resistance to sulfide stress cracking. The alloy also proves invaluable in seawater cooling systems, flue gas desulfurization (FGD) units, and pulp and paper production equipment, where longevity under constant exposure is essential.
Beyond its technical capabilities, alloy 28 offers significant economic advantages throughout the equipment lifecycle. While the initial material cost may be higher, its long service life and reduced need for maintenance, repairs, and unplanned shutdowns result in considerably lower total cost of ownership. This makes it not just a technical upgrade but a financially sound investment for operations prioritizing reliability and efficiency.
We supply high-quality alloy 28 (UNS N08028) in various product forms, including bar, plate, and pipe, all produced to meet stringent international standards. Our commitment extends beyond delivery to providing comprehensive technical support, ensuring you select the optimal material solution for your specific environmental and mechanical requirements.
Ready to enhance your corrosion resistance strategy? Contact us today to request a quote, discuss your application details, or obtain a detailed technical data sheet for alloy 28.
