SS 904L/ UNS N08904 Chromium-nickel Strips

904L, known as UNS N08904, is super austenitic stainless steel contiaining elements 14.0-18.0% Chromium and 24.0-26.0% nickel. 904L stainless steel is available in plate, sheet, and strip for pressure vessels and for general applications including architecture, building, construction, and aesthetic use.

Standards and grades: UNS N08904, DIN1.4539, ASTM A240, SUS890L
904L Chromium-nickel steel strips have moderate to excellent corrosion resistance properties. With great oxidation resistance. It has low carbon percentage that enhances cleanliness and weldability of this steel metal. SS 904L/ UNS N08904 is a recommended austenitic stainless steel for use in the applications where grades 316l or 317l cannot provide the required corrosion resistance properties. Presence of higher magnitudes of nickel and molybdenum makes it better than other austenitic steels.
904L/ UNS N08904 alloy is non-magnetic in nature and has good forming and welding properties. Outstanding hardness even lower than cryogenic limits, 904l SS steel has maximum application temperature up to 450oC.
904l SS Corrosion Resistance:
904L Chromium-nickel steel strips have excellent resistance to hot seawater and chloride based corrosion. SS 904l prevents stress corrosion cracking and gives extensive resistance to reducing acids such as sulphuric acid in vigorous and normal conditions. It has poor resistance to nitric acid. This grade should be solution and cold processed to completely prevent SCC in the critical conditions. It retains its structure even above 400oC.
Stainless steel 904l Uses:
Scrubbing assemblies, acid and fertilizer producing system, control and instrumentation pipes, seawater quenching equipment, Acid processing apparatus, gas rinsing, condenser tubes, heat exchanger, oil and gas processing, paper and related industry.