1.4828 Stainless Steel Composition & Heat‑Resistant Properties

1.4828 (X15CrNiSi20‑12) is a heat‑resistant austenitic stainless steel grade under EN standards. With 19–21% chromium, 11–13% nickel, and 1.5–2.5% silicon, it provides excellent oxidation resistance and structural stability during long‑term exposure at 900–1050°C. The grade performs reliably under oxidizing atmospheres, thermal cycling, and mildly sulfur‑containing environments. It is commonly used in furnace components, combustion chambers, insulation structures, heat‑treatment trays, and high‑temperature support parts. Weldability is good, enabling fabrication of heat‑resistant structures and liners. 1.4828 is supplied as plates, tubes, bars, and strips. It is widely used in industrial furnaces, thermal‑processing equipment, exhaust systems, and high‑temperature transfer structures. As a silicon‑enhanced heat‑resistant steel, it offers long‑term stability in severe oxidation environments.