Duplex 2304, also called Alloy 2304, is a molybdenum-free duplex stainless steel. It has a structure that is a balance of ferritic and austenitic and is often used as a replacement for Alloys 304L and 316L. Some of Duplex 2304 stainless steel’s other properties include:

• Outstanding corrosion resistance
• Yield strength (twice that of 304L/316L)
• Suitable for applications covering -50ºC/+300ºC temperature range
• Resistance to pitting and crevice corrosion
• Improved machinability and weldability

Because of these positive qualities Duplex 2304 is commonly used in a range of applications for a variety of industries.  These include:

• Pulp and paper industry (pipes, storage tanks)
• Food industry
• Pressure vessels
• Mining
• Exposure to caustic solutions and organic acids
• Water treatment
• Construction and architecture

For a stainless steel to be labeled Duplex 2304, it must contain a number of different components including:

• Fe Balanced
• Cr 21.5-24.5%
• Ni 3.0-3.5%
• Mn 2.5% max
• Cu .05%-2.0%
• N .05-2.0%
• Si 1% max

Continental Steel offers a wide range of forms and sizes of Duplex 2304, all of which meet the leading industry standards like ASTM, ASME, EURONORM, and DIN.