LDX 2101®

LDX 2101®

LDX 2101® is a lean duplex stainless steel designed for general purpose use. Like other duplex stainless steels, LDX 2101® provides both superior strength and chloride stress corrosion cracking resistance compared to 300 series stainless steels. 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 steels. 

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.

Chemistry

 NiCrMoMnCuSiCNSPFe
MIN 1.35 21.0 0.1 4.0 0.1 - - 0.2 - - -
MAX 1.7 22.0 0.8 6.0 0.8 1.0 0.04 0.25 0.03 0.04 Balance

* ASTM specification 1.50 max Si.

Specifications

ASME SA 240ASME SA 790ASME Section VIII Code Case 2418
ASTM A 240ASTM A 276ASTM A 276 Condition AASTM A 276 Condition SASTM A 479ASTM A 789ASTM A 790
EN 1.4162
UNS S32101
Werkstoff 1.4162

Inventory

LDX 2101® Coil, LDX 2101® Fittings, LDX 2101® Pipe, LDX 2101® Plate, LDX 2101® Sheet, LDX 2101® Welding Products

Common Trade Names

LDX 2101® Stainless

Features

  • High resistance to chloride stress corrosion cracking (SCC)
  • High strength
  • Good fatigue strength
  • Chloride pitting resistance comparable to type 316L stainless
  • Good general corrosion resistance
  • Good machinability and weldability
  • Useful up to 600°F

Applications

  • Chemical process pressure vessels, piping and heat exchangers
  • Pulp and paper mill equipment
  • Mixers and agitators
  • Architectural
  • Waste water handling systems
  • Ethanol production

Physical Properties

Density: 0.278 lb/inch3
Melting Point: 2525- 2630°F
Poisson's Ratio: 0.3
Electrical Resistivity: 481 Ohm - circ mil/ft

Temperature, °F 70 212 392 572
Coefficient* of Thermal Expansion, in/in°F x 10-6 - 7.5 7.8 8.1
Thermal Conductivity
Btu • ft/ft2 • hr • °F
9.2 9.8 11.0 11.6
Modulus of Elasticity, Dynamic psi x 106 29.7 29 27.6 26.1

* 70°F to indicated temperature.

Mechanical Properties

Minimum Specified Properties, ASTM A 240

Ultimate Tensile Strength, ksi 94
0.2% Yield Strength, ksi 65
Elongation, % 30
Hardness MAX, Brinell 290

Minimum Elevated Tensile Properties

Temperature, °F 212 302 392 482
Ultimate Tensile Strength, ksi 86.2 81.3 78.3 78.3
0.2% Yield Strength, ksi 55.7 50.8 47.6 46.1

LDX® 2101 is a registered trademark of Outokumpu Stainless