ASTM A240 904L is 904L stainless steel manufactured according to ASTM A240 standard. 904L is a low carbon austenitic stainless steel designed for harsh environments with excellent corrosion resistance.
ASTM A240 904L Stainless Steel Features:
904L stainless steel has excellent corrosion resistance, especially in strong acids, alkali and high temperature environments.
It has excellent activation - passivation conversion ability and excellent corrosion resistance to reducing acids such as sulfuric acid, acetic acid, formic acid and phosphoric acid.
In neutral chloride ion media, 904L stainless steel also shows good pitting resistance, and has good crevice corrosion resistance and stress corrosion resistance.
904L stainless steel has excellent mechanical properties, including high strength, high hardness, good wear resistance and impact resistance.
The main chemical components of 904L stainless steel include chromium (Cr), nickel (Ni) and molybdenum (Mo). Specifically, it contains 19.0 to 23.0% chromium, 23.0 to 28.0% nickel, and 4.0 to 5.0% molybdenum. In addition, it also contains a certain amount of carbon, silicon, manganese, phosphorus, sulfur, copper, vanadium, niobium, titanium and other elements. The proportions of these elements are precisely controlled to provide the desired corrosion resistance and mechanical properties.
The delivery condition of ASTM A240 904L stainless steel is usually treated by solution annealing to ensure the stability of its material properties and quality. In addition, 904L stainless steel products in other processing states are also available according to customer requirements.
Due to its excellent corrosion resistance and mechanical properties, ASTM A240 904L stainless steel is widely used in many fields. Common application areas include the production and transportation of sulfuric acid, pickling of metals in sulfuric acid, paper and related industries, chemical and pharmaceutical industries, and industrial areas that need to withstand high temperatures and strong corrosive environments.
