Here's a professional English product introduction for UNS S30403 (304L stainless steel):

‌UNS S30403‌ is a low-carbon variant of 304 stainless steel, featuring 18-20% chromium and 8-12% nickel composition for superior corrosion resistance. This austenitic stainless steel maintains excellent mechanical properties while offering enhanced weldability compared to standard 304 grades.

‌Key Characteristics:‌

• Outstanding corrosion resistance in various environments including acids and chloride solutions
• Improved weldability with reduced risk of intergranular corrosion (carbon content ≤0.03%)
• Good mechanical properties: tensile strength ≥480 MPa, yield strength ≥175 MPa
• Excellent formability and ductility (elongation ≥40%) for complex fabrication
• Maintains performance in both high-temperature (up to 500°C) and cryogenic conditions

‌Primary Applications:‌
• Chemical Processing: Reactors, piping systems, and storage tanks for corrosive media
• Food Industry: Processing equipment, storage vessels, and sanitary piping
• Pharmaceutical: Medical devices and sterile processing equipment

• Oil & Gas: Pipeline components and offshore platform equipment
• Architecture: Decorative elements and structural components

The material complies with international standards including ASTM A276 and is available in various forms such as plates, tubes, and bars56. Its balanced properties make S30403 particularly suitable for applications requiring both corrosion resistance and fabrication versatility.