Structure and Strength of Low-Nickel Stainless Steel Alloyed with Nitrogen

摘要

New X19H6Γ 10AM2 low-nickel steel is characterized by very high strength after hot rolling and quenching from the austenitic region. Accordingly, it performs well in the climatic conditions of the Arctic and Antarctic. The strength is higher than that of traditional X18H10 stainless steel on account of additional solid-solution strengthening. For traditional X18H10 stainless steel alloyed with nitrogen (up to 0.18), the mechanical properties are lower but still high, while the thermal and mechanical stability of the austenite is lower. Such steel may be used at less challenging temperatures and loads.