Alloy 28 is a super austenitic stainless steel characterised by high chromium and molybdenum content, with added copper and nitrogen. Its chemical composition is meticulously balanced to deliver exceptional corrosion resistance in both strongly oxidising and reducing acidic media, particularly in environments containing halide ions. It serves as a highly cost-effective alternative to numerous expensive nickel-based alloys, such as Hastelloy C-276. Core Characteristics: Outstanding Comprehensive Corrosion Resistance: Demonstrates exceptional resistance to sulphuric acid, phosphoric acid, and their mixed acids, making it a standard material selection for the wet phosphoric acid industry. Exceptional Resistance to Localised Corrosion: Extremely high molybdenum and nitrogen content provides formidable resistance to pitting and crevice corrosion, effectively countering halide ions in acidic media. Superior stress corrosion cracking resistance: Demonstrates significantly higher resistance to stress corrosion cracking than conventional stainless steels in chloride-containing acidic environments. Good weldability and formability: Retains the favourable processing characteristics typical of austenitic stainless steels. High cost-effectiveness: In numerous strong acid applications, its performance rivals that of more expensive nickel-based alloys while offering significantly reduced costs.