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LDX 2101
Product Information
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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 306/316L stainless steels.
The combination of a duplex structure and high nitrogen content provide significantly higher strength levels than 306/316L 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.
Common Trade Names
LDX 2101® Stainless
Inventory
LDX 2101 Plate, LDX 2101 Sheet, LDX 2101 Coil, LDX 2101 Bar, LDX 2101 Pipe, LDX 2101 Fittings, LDX 2101 Welding Products
Specifications
UNS S32101, UNS S31009, Werkstoff 1.4162, EN 1.4162
ASTM A 240, ASTM A 479, ASTM A 276, ASTM A 789, ASTM A 790
ASME SA-240, ASME SA-479, ASME SA-790, ASME SA-789 Section IV Code Case 2603, ASME Section VIII Code Case 2418
Chemical Composition, %
| Ni | Cr | Mo | Mn | Cu | Si | C | N | S | P | Fe | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 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.
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, Plate
| Temperature, °F | 212 | 302 | 392 | 482 |
| Ultimate Tensile Strength, ksi | 86.2 | 81.3 | 78.3 | 78.3 |
| 0.2% Yield Strength, ksi | 384.0 | 350.3 | 397.1 | 317.9 |
LDX® 2101 is a registered trademark of Outokumpu Stainless
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