Lean Duplex 1.4162 / LDX 2101 ferritic-austenitic steel according to EN 10088-1.
| Standards | Steel Grades | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Chemical Composition % | |||||||||||
| C: | Mn: | Si: | P: | S: | Cr: | Mo: | Ni: | Cu: | N: | ||
| Outokumpu | LDX 2101 ® | ||||||||||
| <0.03 | 4.0 - 6.0 | <1.0 | <0.04 | <0.03 | 21.0 - 22.0 | 0.1 - 0.8 | 1.35 - 1.70 | 0.1 - 0.8 | 0.22 | ||
| EN | 1.4162 - X2CrMnNiN21-5-1 | ||||||||||
| <0.04 | 4.0 - 6.0 | <1.0 | <0.04 | <0.015 | 21.0 - 22.0 | 0.1 - 0.8 | 1.35 - 1.90 | 0.1 - 0.8 | 0.20 - 0.25 | ||
| UNS | S32101 - S 32101 | ||||||||||
| <0.04 | 4.0 - 6.0 | <1.0 | <0.04 | <0.03 | 19.5 - 22.0 | 0.1 - 0.8 | 1.00 - 3.00 | 0.1 - 1.0 | 0.15 - 0.25 | ||
| ASTM | A 182 F69 - A182 F 69 | ||||||||||
| <0.4 | 4.0 - 6.0 | <1.0 | <0.04 | <0.03 | 21.0 - 22.0 | 0.1 - 0.8 | 1.35 - 1.70 | 0.1 - 0.8 | 0.20 - 0.25 | ||
Description and application
Another grade of austenitic-ferritic bifurcated stainless steel, which chemical composition with limited nickel content not significantly reduces the price of raw material, it also is improving mechanical properties (which supports Nitride) and resistance to corrosion - especially stress, intercrystalline and crevice corrosion.
The LDX 2101 grade exhibits much better corrosion resistance in comparison to AISI 304 / 304L and AISI 316Ti, AISI 316 / 316L austenitic grades. Steel stands out high resistance to cracking, better fatigue resistance, smaller cross-sectional areas for production, higher two-phase stability thanks to Mn, work temperature up to 600 ℃, good weldability and machinability.
The above-mentioned Lean Duplex, unfortunately, requires a significantly higher strength during cold working than standard austenitic stainless steels. LDX 2101 is used in the shipbuilding, marine, petroleum, petrochemical, chemical, nitrogen, aerospace, cryogenic, pulp and paper industries, power engineering, agitator construction, sewage treatment plants, screws, shafts, bushes, aircraft parts, radiator parts, heat exchangers pipelines, heavy-duty tankers, pressure and chemical vessels and silos working in contact with oils, fuels, structures and cargo tanks of chemical tankers.
Mechanical properties of +AT condition steel
- For cold-rolled strips:
- Tensile strength, Rm = 700 - 900 MPa
- Yield point, Re > 530 MPa
- Elongation <3mm thickness, A > 20%
- Elongation >3mm thickness, A > 30%
- For hot-rolled strips:
- Tensile strength, Rm = 680 - 900 MPa
- Yield point, Re > 480 MPa
- Elongation, A > 20%
- Notch toughness with dimensions <10mm, KV20℃ > 40J
- For hot-rolled steel sheets:
- Tensile strength, Rm = 650 - 850 MPa
- Yield point, Re > 450 MPa
- Elongation <3mm thickness, A > 30%
- Notch toughness with dimensions <10mm, KV20℃ > 60J
- Yield point at individual work temperatures:
- Temperature 100℃ = Re > 365 MPa
- Temperature 150℃ = Re > 325 MPa
- Temperature 200℃ = Re > 295 MPa
- Temperature 250℃ = Re > 275 MPa
- Other mechanical properties
- Modulus of elasticity, E: 195 GPA
- Resistance: 0,75 mkOhm*m
- Heat capacity: 500 J/kg * K
- Thermal conductivity at 20°C: 15 W/m * K
- Linear Expansion Factor: 13.0 - 14.5 * 106 K-1
- Density: 7,7 g/cm3
Heat treatment:
- Annealing at 1020 - 1080°C with cooling in water or air
The company delivers:
Other indications and equivalents:
1.4162, LDX 2101, UNS S32101, X2CrMnNiN21-5-1, steel F69, Lean Duplex 2101, CRS32101, WPS32101, X2CrMnNiN2151.