1.4878 Stainless Steel Composition & Heat‑Resistant Properties
1.4878 (X8CrNiTi18‑10) is a heat‑resistant austenitic stainless steel grade under EN standards, equivalent to 321. With 17–19% chromium, 9–12% nickel, and titanium stabilization, it minimizes carbide precipitation during high‑temperature exposure, improving resistance to sensitization. Compared with general 321 grades, 1.4878 is optimized for heat‑resistant applications and offers better structural stability around 600°C.
The grade is suitable for heat exchangers, exhaust systems, boiler components, furnace structures, and high‑temperature piping. It performs reliably under thermal cycling and maintains good weldability without requiring post‑weld heat treatment. 1.4878 is supplied as plates, tubes, bars, and strips. It is widely used in petrochemical equipment, thermal processing systems, automotive exhaust components, and high‑temperature structural parts. As a heat‑resistant variant of the 321 family, it provides dependable performance in elevated‑temperature environments.
The grade is suitable for heat exchangers, exhaust systems, boiler components, furnace structures, and high‑temperature piping. It performs reliably under thermal cycling and maintains good weldability without requiring post‑weld heat treatment. 1.4878 is supplied as plates, tubes, bars, and strips. It is widely used in petrochemical equipment, thermal processing systems, automotive exhaust components, and high‑temperature structural parts. As a heat‑resistant variant of the 321 family, it provides dependable performance in elevated‑temperature environments.