Alloy LDX 2101 Super Duplex Stainless Steel
Alloy LDX 2101 is a low-nickel, nitrogen enhanced lean duplex stainless steel developed for general-purpose use. The austenitic-ferritic (duplex) structure of the alloy is balanced to approximately equal amounts of ferrite and austenite in the solution-annealed condition.
Alloy LDX 2101 possesses both superior strength and greater chloride stress-corrosion cracking resistance than conventional 300 series stainless steels.
The corrosion resistance of LDX 2101 is generally good making it suitable for use in a wide variety of applications. In most environments, it is superior to 304L stainless steel and comparable to the molybdenum containing 316L stainless steel.
Mesh: 0.5-250 mesh/Inch
Thickness: Min0.05mm
Corrosion Resistance
The 300 series stainless steels are used extensively in numerous process industries due to their overall general corrosion resistance. The corrosion resistance of LDX 2101 is generally better than 304L and comparable to 316L making it suitable for use in a wide variety of industries and applications.
Chemical Analysis
Typical Values (Weight %)
Cr | Ni | Mn | Mo | N |
21.0 min. - 22.0 max. | 1.35 min. - 1.70 max. | 4.00 min. - 6.00 max. | 0.10 min. - 0.80 max. | 0.20 min. - 0.25 max. |
Physical Properties
| Temperature, ºF |
68 | 200 | 400 | 600 |
Density | lb/in3 | 0.28 | | | |
Modules of Elasticity | x 106 psi | 29 | 28 | 27 | 26 |
Poissons Ratio | | 0.3 | | | |
Linear Expansion | x 10-6 in/in/°F | — | 7.2 | 7.5 | 7.5 |
Thermal Conductivity | Btu/ft/h °F | 8.7 | 9.3 | 9.8 | 10.4 |
Thermal Capacity | J/kg °F | 500 | 530 | 560 | 590 |
Electric Resistivity | micro-ohms•meter | 0.80 | 0.85 | 0.90 | 1.00 |
Mechanical Properties
| Minimum values (.625" Plate) | Typical values (.625" Plate) |
0.2% Yield Strength | ksi | 65 | 69 |
Tensile Strength | ksi | 94 | 101 |
Elongation | % | 30 | 38 |
Hardness (Brinell) | HB | 290 (max) | 225 |
LDX 2101 exhibits good abrasion and erosion resistance and can be fabricated using standard shop practices developed for duplex stainless steels.
Applications
Air Pollution Control
External absorber and outlet duct reinforcements
Biofuels
Biodiesel and Ethanol plants and tanks
Chemical Process Equipment
Pressure vessels, heat exchangers, tanks, piping systems and tankers
Food and Beverage Process Equipment
Palm oil and wine storage tanks
Infrastructure
Bridges, flood gates, sluice gates
Pulp and Paper
Hydrogen peroxide bleaching reactors, white liquor storage tanks, digesters,
washers, paper machine parts
Seawater Treatment
Desalination system chambers and evaporators
Water and Wastewater Treatment