HOT LINE: +86-510-80628100HOT LINE: +86-510-80628100The basic requirement for precipitation hardening to occur in an alloy system is that the solubility of a certain element decreases with decreasing temperature. Commercially valuable precipitation hardening elements include Ti, Mo, V, W, Co, and Cu, which can be used to improve mechanical properties.
This steel grade has high strength after precipitation hardening heat treatment. The corrosion resistance is better than that of ferrite and slightly lower than that of austenite.
Martensitic precipitation hardening stainless steel has an austenitic structure after solution treatment and undergoes martensitic transformation upon cooling. When heated to a certain temperature (482~593 ℃), intermetallic compounds precipitate, strengthening and hardening the matrix.
Half austenitic precipitation hardened stainless steel does not transform into martensite when cooled to room temperature after solid solution treatment. When heated to 648-815 ℃, precipitates are produced. When cooled to room temperature, martensitic transformation occurs, and then when heated to 426-593 ℃, precipitation occurs to strengthen it.
Austenitic precipitation hardening stainless steel, after solid solution treatment, is cooled to room temperature and heated to 648-760 ℃, where precipitation occurs to strengthen it. However, due to the austenitic matrix, the increase in hardness is relatively small.
