Stainless Steel 904L (Alloy 904L / UNS N08904 / 1.4539) is a high-alloy austenitic stainless steel known for its exceptional corrosion resistance in harsh environments. With low carbon content and added copper, 904L offers excellent resistance to sulfuric acid, chloride pitting, and crevice corrosion. It maintains strength and toughness even in high temperatures, making it ideal for chemical processing, marine applications, and pharmaceutical industries. Its superior weldability and formability enhance its versatility across demanding sectors. Stainless Steel 904L is a reliable choice for long-term performance in aggressive conditions where standard stainless steels may fail.