1.4429 Stainless Steel Composition & High-Corrosion Resistance
1.4429 (X2CrNiMoN17-13-3) is a nitrogen- and molybdenum-alloyed austenitic stainless steel grade under EN 10028-7 and EN 10088-2, classified within the 316LN family. With 16.5–18.5% chromium, 12–14% nickel, 2.5–3% molybdenum, and added nitrogen, it provides enhanced strength and superior pitting resistance in chloride-rich environments.
The grade is suitable for seawater systems, chemical processing equipment, pressure vessels, hygienic installations, and high-purity fluid systems. It maintains stable weldability and retains corrosion resistance after welding, making it ideal for demanding fabrication applications.
1.4429 is supplied as plates, tubes, bars, and strips. It is widely used in marine engineering, pharmaceutical systems, heat exchangers, pump and valve components, and architectural structures. As a high-molybdenum, high-nitrogen variant of 316L, it offers improved reliability in aggressive corrosive environments.
The grade is suitable for seawater systems, chemical processing equipment, pressure vessels, hygienic installations, and high-purity fluid systems. It maintains stable weldability and retains corrosion resistance after welding, making it ideal for demanding fabrication applications.
1.4429 is supplied as plates, tubes, bars, and strips. It is widely used in marine engineering, pharmaceutical systems, heat exchangers, pump and valve components, and architectural structures. As a high-molybdenum, high-nitrogen variant of 316L, it offers improved reliability in aggressive corrosive environments.