Stainless Steel 1.4662
EN 1.4662 · UNS S82441
EN 1.4662 (X2CrNiMnMoCuN24-4-3-2) is a manganese- and copper-alloyed lean duplex stainless with moderate molybdenum, placing its corrosion performance between 2304 and 2205.
Reference datasheet — 1.4662 is not in the instant-quote catalog. Upload your part and an engineer will quote it in this grade or suggest the closest stocked equivalent.
1.4662 tempers and conditions
1.4662 is supplied in 3 conditions, soft to hard.
Compare all 3 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Solution annealed and quenched | Base supply condition for hot-finished bar, forgings and seamless/welded tube; anneal ~1000–1100 °C then rapid quench. | 520 | 750 | 30 | 23 HRC | 2.2 % IACS |
Cold drawn | Choose for close-tolerance bright bar and shafts where extra yield strength is welcome and no further deep forming is needed. | 680 | 850 | 20 | 29 HRC | 2.2 % IACS |
Cold rolled, work-hardened strip | Special-order hard temper thin strip for springy or high-strength flat parts; formability and impact toughness are much reduced. | 800 | 950 | 12 | 33 HRC | 2.2 % IACS |
Supply forms, finishes and certifications
Ways 1.4662 is supplied — form, process route, surface or paperwork — without a datasheet of their own. The property values above apply.
| Option | What it is | Type |
|---|---|---|
1D | Hot rolled, solution annealed, pickled | Surface finish |
2BDefault | Cold rolled, solution annealed, pickled, skin-passed | Surface finish |
What is 1.4662?
EN 1.4662 (X2CrNiMnMoCuN24-4-3-2) is a manganese- and copper-alloyed lean duplex stainless with moderate molybdenum, placing its corrosion performance between 2304 and 2205. It delivers 545 MPa yield, 760 MPa tensile, 32% elongation and about 255 HB (25 HRC) in 2B and 1D sheet, solution-annealed (AT) and cold-drawn bar and 2H hard strip, so wall thicknesses can be reduced relative to 304/316L. Service is limited to roughly 300 °C and machinability is low (score 30); for chloride exposure beyond its 77 corrosion rating, move to 1.4462. 1.4662 has a density of 7.7 g/cm³ (0.278 lb/in³), lighter than 83% of stainless steel grades. It melts at 1,385°C (2,525 °F). 1.4662 has a yield strength of 540 MPa (78.3 ksi) and a tensile strength of 760 MPa (110 ksi) — stronger than 82% of stainless steel grades. Elongation at break is 32% and the elastic modulus is 200 GPa (29 Msi).
What is 1.4662 used for?
- tanks
- structural piping
- industrial equipment
Advantages
- High strength — 540 MPa (78.3 ksi), better than 82% of stainless steel grades
- Good corrosion resistance — 76/100, better than 80% of stainless steel grades
Limitations
- Limited service temperature — 300°C (572 °F), worse than 90% of stainless steel grades
1.4662 properties
Typical room-temperature values; bars are the position among stainless steel grades.
Physical3
1.4662 has a density of 7.7 g/cm³ (0.278 lb/in³), lighter than 83% of stainless steel grades. It melts at 1,385°C (2,525 °F).
Mechanical17
1.4662 has a yield strength of 540 MPa (78.3 ksi) and a tensile strength of 760 MPa (110 ksi) — stronger than 82% of stainless steel grades. Elongation at break is 32% and the elastic modulus is 200 GPa (29 Msi).
Thermal5
1.4662 is rated for continuous service to 300°C (572 °F). It conducts heat at 15 W/m·K (8.67 BTU/hr·ft·°F), worse than 59% of stainless steel grades. Thermal expansion is 13 µm/m·K (7.22 µin/in·°F).
Electrical3
1.4662 conducts electricity at 2.2 % IACS, worse than 61% of stainless steel grades.
Chemical & Environmental3
Corrosion resistance is very good (76/100), better than 80% of stainless steel grades.
Sustainability4
Producing a kilogram of 1.4662 takes about 52 MJ of energy and emits 4.8 kg of CO₂ — less than 76% of stainless steel grades. Typical recycled content is 75%.
Manufacturability7
1.4662's machinability is poor (30/100, worse than 70% of stainless steel grades); weldability very good (75/100); formability fair (48/100).
Common Calculations5
Values are nominal handbook figures for design screening. Certified mill or lot data ships with every FabDigit order on request.
Strength versus weight in the stainless steel family
Yield strength against density for every stainless steel grade FabDigit runs. 1.4662 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with 1.4662
Is 1.4662 easy to machine?
Machine like 2205: rigid setups, 20–30 % lower cutting speeds than 316L, heavy positive-rake carbide, generous feed to cut through the work-hardened skin and copious coolant.
Can 1.4662 be welded?
Weldable by GTAW/GMAW/SAW with 2209 or 2307-type overalloyed filler, no preheat, heat input roughly 0.2–1.5 kJ/mm and interpass below ~250 °C to keep ferrite/austenite balance and avoid nitrides.
Can 1.4662 be formed, bent or molded?
Cold forms well but needs about twice the press force of 304 and generous springback allowance; hot work 950–1150 °C followed by full solution anneal and quench.
1.4662 chemical composition (wt %)
Limits by weight percent from the governing specification, written the way the spec states them — a single maximum for impurities, a range for alloying elements, and the base element as balance. Nominal is the typical mid-range value.
| Element | Spec limit (wt %) | Nominal |
|---|---|---|
| C | ≤ 0.03 | 0.02 |
| Si | ≤ 0.7 | 0.4 |
| Mnpartial Ni substitute | 2.5 – 4 | 3 |
| P | ≤ 0.04 | — |
| S | ≤ 0.01 | — |
| Cr | 23 – 25 | 24 |
| Ni | 3 – 4.5 | 3.6 |
| Mo | 1 – 2 | 1.6 |
| Cu | 0.1 – 0.8 | 0.4 |
| Naustenite stabiliser, raises strength and PREN | 0.2 – 0.3 | 0.27 |
| Fe | balance | — |
What surface finishes work on 1.4662?
Pickle and passivate after hot work or welding to restore the passive film; grinds, brushes and electropolishes to good finishes — do not anodize.
Surface treatments FabDigit runs on stainless steel parts — pick them in the quote configurator or call them out on the drawing. Each links to its datasheet in the surface-finish library (thickness, specs, call-out, material verdicts).
Passivation
Organic Coating
Thermal Spray
Equivalent designations
Standards and trade names that resolve to Stainless Steel 1.4662 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- UNS
- S82441
- EN / DIN / Werkstoff-Nr.
- X2CrNiMnMoCuN24-4-3-2
How much does 1.4662 cost?
1.4662 is a premium-cost stainless steel ($$$), cheaper than about 51% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
1.4662 — frequently asked
What is 1.4662 used for?
1.4662 is typically used for tanks, structural piping and industrial equipment. In short: mid-range lean duplex corrosion; higher yield than 316L; mo-lean 2205 substitute.
What is the yield strength of 1.4662?
1.4662 has a typical yield strength of 540 MPa (78.3 ksi) and a tensile strength of 760 MPa (110 ksi) — stronger than 82% of stainless steel grades. Strength varies by condition: see the 3 listed tempers.
Is 1.4662 easy to machine?
Not especially — machinability is rated poor (30/100, worse than 70% of stainless steel grades). Machine like 2205: rigid setups, 20–30 % lower cutting speeds than 316L, heavy positive-rake carbide, generous feed to cut through the work-hardened skin and copious coolant.
Can 1.4662 be welded?
Yes — weldability is rated very good (75/100). Weldable by GTAW/GMAW/SAW with 2209 or 2307-type overalloyed filler, no preheat, heat input roughly 0.2–1.5 kJ/mm and interpass below ~250 °C to keep ferrite/austenite balance and avoid nitrides.
What surface finishes work on 1.4662?
Pickle and passivate after hot work or welding to restore the passive film; grinds, brushes and electropolishes to good finishes — do not anodize.
Can 1.4662 be formed, bent or molded?
Cold forms well but needs about twice the press force of 304 and generous springback allowance; hot work 950–1150 °C followed by full solution anneal and quench.
What is the maximum service temperature of 1.4662?
1.4662 is rated for continuous use to about 300°C (572 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
How much does 1.4662 cost?
1.4662 is a premium-cost stainless steel ($$$), cheaper than about 51% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
Sources
- EN 10088-2/-3 — Stainless steels: sheet, plate, strip and bar — CEN (2014)
- LDX 2404 (EN 1.4662 / UNS S82441) duplex stainless datasheet — Outokumpu (2020)
- ASTM A240/A240M — Chromium and chromium-nickel stainless plate, sheet and strip (S82441) — ASTM (2022)
- Practical Guidelines for the Fabrication of Duplex Stainless Steels — IMOA (2014)
- ASM Handbook Vol.1 — Properties and Selection: Irons, Steels — ASM International (1990)
Property data is compiled from published supplier and standards handbooks and normalised for comparison; hardness values on non-Brinell scales are converted approximately for charting only. Manufacturability limits are FabDigit quote-engine defaults and may be relaxed by engineering review. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.