The difference between 904 stainless steel wire mesh and 904L stainless steel wire mesh is mainly reflected in the following aspects:
Chemical composition:
· Although 904 stainless steel wire mesh has the corrosion-resistant characteristics of austenitic stainless steel, the specific chemical composition is not mentioned in detail in the reference article.
· 904L stainless steel wire mesh (also known as super austenitic stainless steel) has a specific chemical composition. It contains 14.0% to 18.0% chromium, 24.0% to 26.0% nickel, and 4.5% molybdenum. This high nickel and high molybdenum composition gives it excellent corrosion resistance.
Corrosion resistance:
Both have good corrosion resistance, but 904L stainless steel wire mesh has better corrosion resistance. In particular, it has good corrosion resistance to non-oxidizing acids such as sulfuric acid, acetic acid, formic acid, phosphoric acid, etc., and exhibits good resistance to pitting, crevice corrosion and stress corrosion in neutral chloride ion media.
In contrast, although the corrosion resistance of 904 stainless steel wire mesh is also very strong, the specific data and range are not mentioned in the reference article.
Mechanical properties:
904L stainless steel wire mesh has high strength and hardness, as well as good plasticity and toughness. These mechanical properties enable it to meet various mechanical processing and manufacturing requirements.
Regarding the mechanical properties of 904 stainless steel wire mesh, the specific information is not mentioned in detail in the reference article.
Application areas:
Due to its excellent corrosion resistance and mechanical properties, 904L stainless steel wire mesh is often used in harsher working environments, such as petroleum, petrochemical equipment, flue gas desulfurization devices in power plants, offshore systems or seawater treatment.
· 904 stainless steel wire mesh has corrosion resistance and can be used in corrosion-resistant fields.
· 904L stainless steel wire mesh has better performance than 904 stainless steel wire mesh in terms of chemical composition, corrosion resistance, mechanical properties and welding performance, so it is often used in more demanding working environments.