Both grade 304 and 321 belong to the Austenitic 300 series stainless steel. They are similar in corrosion resistance, strength, hardness and welding performance, but 321 is mostly used in the heat resistance condition of 500-600 ℃. 321H stainless steel is the low-carbon version of 321, is the commonly used heat resistant steel, of which […]
Solution annealing is also referred as carbide solution annealing, is a process that heats the work part to 1010℃ or above to remove of carbide precipitation (Carbon from the stainless steel solid solution), and then it is rapid cooling, usually, water quenching and the carbide returned to the stainless steel solid solution. Solution annealing treatment […]
As we all know, stainless steel has the ability to resist atmospheric oxidation, that is, will not rust, but also corrode in the medium like acid, alkali and salt, that is, corrosion resistance. However, the corrosion resistance of stainless steel is conditional, that is, stainless steel in a certain medium is corrosion-resistant, but in another […]
