Tsingshan Duplex Stainless Steel (DSS) is a high-performance stainless steel featuring a dual-phase microstructure of ferrite and austenite, with the two phases present in approximately balanced proportions (each accounting for about 40%-60%). Through precise control of chemical composition and production processes, it combines the core advantages of both stainless steel families.

• High Strength: Yield strength can reach up to twice that of conventional austenitic stainless steel, allowing for reduced material thickness, lower equipment weight, and reduced manufacturing costs.
• Excellent Corrosion Resistance: Outstanding resistance to chloride-induced pitting, crevice corrosion, and stress corrosion cracking, significantly outperforming traditional stainless steels in harsh media environments.
• Superior Cost-Effectiveness: Lower nickel content compared to austenitic stainless steel, combined with longer service life and reduced maintenance costs, offering higher cost-effectiveness over the entire lifecycle.
• Good Processability: High weldability without the need for complex preheating or post-weld heat treatment, compatible with conventional processing techniques.

• Petrochemical Industry: Used in oil and gas transmission pipelines, pressure vessels, chemical reactors, etc., withstanding acidic media and high-pressure environments.
• Marine Engineering: Suitable for desalination equipment, marine piping, offshore platform structural components, offering resistance to seawater corrosion.
• Water Treatment and Environmental Protection: Applicable to wastewater treatment equipment, desulfurization and denitrification systems, resisting complex corrosive media.
• Construction and Energy Sectors: Used in high-strength corrosion-resistant structural components, nuclear power cooling system parts, and other critical applications.