JIS G4304 / G4312 SUS 304LN Stainless Steel Composition & Nitrogen‑Enhanced Austenitic Properties
SUS 304LN is a nitrogen‑enhanced, low‑carbon austenitic stainless steel defined in JIS G4304 / G4312. With 18–20% chromium, 8–12% nickel, and added nitrogen, it provides higher yield strength and improved pitting resistance compared with SUS 304L.
304LN maintains excellent corrosion resistance after welding and is suitable for pressure vessels, storage tanks, hygienic systems, food‑processing equipment, and low‑temperature applications. SUS 304LN is supplied as sheets, plates, strips, tubes, and bars. As a strengthened version of 304L, it offers superior mechanical performance and corrosion resistance for demanding industrial environments.
304LN maintains excellent corrosion resistance after welding and is suitable for pressure vessels, storage tanks, hygienic systems, food‑processing equipment, and low‑temperature applications. SUS 304LN is supplied as sheets, plates, strips, tubes, and bars. As a strengthened version of 304L, it offers superior mechanical performance and corrosion resistance for demanding industrial environments.