LDX 2101® is a lean duplex stainless steel designed for general purpose use. Like other duplex stainless steel, LDX 2101® provides both superior strength and chloride stress corrosion cracking resistance compared to 300 series stainless steel. The use of manganese ensures proper ferrite-austenite phase balance, while allowing a reduction in nickel content. As a result, LDX 2101® is priced competitively with 304/304L and 316/316L stainless steel.

LDX 2101 (UNS S32101) is a 21.5% chromium, 5% manganese, 1.5% nickel, 0.45% molybdenum lean duplex stainless steel with corrosion resistance superior to 304L and comparable to 316L. LDX 2101 possesses both superior strength and greater chloride stress-corrosion cracking resistance than conventional 300 series stainless steel.

The combination of a duplex structure and high nitrogen content provide significantly higher strength levels than 316/316L stainless steel. Often a lighter gauge of LDX 2101® can be utilized, while maintaining the same strength as a 300 series fabrication. The resultant weight savings can dramatically reduce the material and fabrication costs of a component.

The enhanced mechanical strength of LDX 2101 enables it to be used in thinner cross-sections which can provide significant cost savings to the end user. LDX 2101 was designed to be a low nickel general purpose substitute for 304 and 304L.

• High resistance to chloride stress corrosion cracking
• Chloride pitting and crevice corrosion resistance comparable to 316L stainless
• Good general corrosion resistance
• High strength
• Good sulfide stress corrosion resistance
• Good machinability and weldability

• Chemical process vessels, piping and heat exchanger
• General purpose stainless steel applications
• Storage Tanks
• Water treatment
• Pulp & Paper mill equipment
• Water heater tanks