AUSTENOFERRITIC STAINLESS STEEL HAVING A VERY LOW NICKEL CONTENT AND A HIGH TENSILE ELONGATION

摘要

carbon 0.04% 0.4% silicon 1.2% 2% manganese 4% 0.1% nickel 1% 18% chromium 22% 0.05% copper 4% sulphuric 0.03% phosphorus 0.1% 0.1% nitrogen 0.3% molybdenum 3% the steel having a two-phase structure of between 30% and 70% -of austenite, such that Creed = Cr% + Mo% +1.5 Si% Nine = Ni% + 0.33 Cu% + 0.5 Mn% + 30 C% + 30 N% with Creq/Nieq between 2.3 and 2.75. Single figure