Nickel Alloys Grade 2205 Round Bar is a special type of stainless steel that's extra strong and incredibly good at resisting rust, especially against harsh chemicals and salt water. It's called "duplex" because it has a unique mix of two steel structures, giving it twice the strength of common stainless steels like 304 or 316. This makes it perfect for demanding uses in chemical plants, oil & gas equipment, marine environments, and pulp & paper mills where high strength and excellent corrosion protection are essential. It's a cost effective and highly durable choice for critical components.