A general-purpose, low-alloyed, lean duplex stainless steel known as LDX 2101 It has good resistance to corrosion and a mechanical strength that is comparable to that of other duplex steels. 2101 duplex stainless is stronger and more resistant to chloride stress corrosion cracking than 300 series stainless steels.

Manganese allows for a lower nickel content while maintaining a balanced ferrite-austenite phase. Consequently, the price of LDX 2101 is comparable to that of 304L and 316L stainless steels. It is less susceptible to precipitation of intermetallic phases than other duplex steels due to its relatively low alloying content.
LDX2101 is suitable for a wide range of general-purpose applications and environments due to its generally high corrosion resistance. LDX 2101 has a strong resistance to stress corrosion cracking due to its duplex structure. It also has a resistance to corrosion that is comparable to that of 304L and 316L stainless steel, which makes it a good choice to replace 300 series stainless in a lot of different applications.