Duplex Stainless Steel Round Bar

Duplex Stainless Steel Round Bar is an alloy made up of a combination of austenitic and ferritic steels. These metals have high chromium (19-28%) and molybdenum (up to 5%) content as well as lower nickel content compared to other types of stainless steels. The most popular duplex alloys are 2205 (22% Chromium, 5% Nickel) and 2507 (25% Chromium, 7% Nickel). In particular, 2507 is considered the "super duplex" due to its superior corrosion resistance.

 

Due to the combination of these two metals, Duplex Stainless Steel Round Bar has a mixed microstructure which gives it numerous advantages over other types of steel. It combines both strength and ductility while retaining good machinability. The alloy also displays excellent corrosion resistance in both reducing and oxidizing environments. Its tensile strength ranges from 550 MPa to 900 MPa making it ideal for applications where high stress is present such as marine environments or chemical plants. Additionally, its thermal conductivity is higher than that of austenitic stainless steel which makes it suitable for use in heat exchangers, pressure vessels or piping systems. Finally, due to its low carbon content, Duplex Stainless Steel Round Bar provides good weldability without risking cracking or porosity issues which may occur when welding other metals.