LDX2101 duplex stainless steel plate UNS S32101

LDX2101 duplex stainless steel plate UNS S32101

General introduction

UNS S32101 is a duplex (austenitic-ferritic) stainless steel with relatively low contents of alloying elements. The grade has high mechanical strength, similar to that of other duplex grades. Its good corrosion resistance is on par with that of most standard stainless steel grades. Combined, these properties can be utilised to optimise design with respect to strength, maintenance, durability and long-term cost efficiency.

Main characteristics:

• High strength - approximately twice as high proof strength as austenitic stainless steels ASTM 304 and 316
• Very good resistance to stress corrosion cracking
• Good resistance to general corrosion and pitting
• High energy absorption
• Physical properties that offer design advantages
• Ease of fabrication and good toughness
• Very good weldability

Applications

General-purpose applications and environments:

• Building and construction
• Storage tanks
• Reinforcement bars
• Water piping

Microstructure

The balanced chemical composition of UNS S32101 results in a microstructure containing approximately equal amounts of ferrite and austenite after annealing at a temperature of 1050°C (1920^oF). Due to its relatively low alloying content, UNS S32101 is less prone to precipitaition of intermetallic phases than other duplex steels.

The high nitrogen content results in rapid re-formation of austenite in weld thermal cycles.

Standards

• UNS S32101