Stainless Steel S82441
UNS S82441 · EN 1.4662, X2CrNiMoN25-6-3
A mid-to-high alloyed duplex stainless steel (~24-25% Cr, ~6% Ni, ~3% Mo, PREN ~34) that bridges standard 2205 and super duplex 2507 in corrosion resistance, favored for chemical tankers and process vessels needing good weldability without full super-duplex cost.
Reference datasheet — S82441 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.
Values for the SA condition
S82441 tempers and conditions
S82441 is supplied in 6 conditions, soft to hard. SA is the default FabDigit quotes; the values on this page are for it.
Compare all 6 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Forged, solution annealed (valve bodies, flanges) | For heavy sections and valve/pump forgings to ASTM A182-equivalent practice; check through-thickness ferrite balance and impact values. | 520 | 770 | 28 | 23 HRC | 2.2 % IACS |
Hot finished bar/section, solution annealed | Standard bar condition (ASTM A276/A479) for shafts, flanges and machined pressure parts. | 530 | 780 | 30 | 24 HRC | 2.2 % IACS |
SADefault Solution annealed | Default supply condition for plate, sheet, bar, tube and fittings; best combination of ductility, toughness and corrosion resistance. | 550 | 800 | 30 | 25 HRC | — |
As-welded deposit | Design condition for fabricated vessels welded with over-alloyed duplex filler and no post-weld solution treatment; toughness is the limiting property. | 560 | 780 | 24 | 26 HRC | 2.2 % IACS |
Cold rolled sheet/strip, annealed, 2B finish | Thin gauge (<6 mm) sheet for tank linings and formed parts; slightly higher strength and better surface than hot rolled. | 580 | 820 | 28 | 26 HRC | 2.2 % IACS |
Cold drawn | Choose for close-tolerance small-diameter bar and higher strength fasteners/shafts; toughness and formability drop. | 700 | 900 | 20 | 31 HRC | 2.2 % IACS |
Supply forms, finishes and certifications
Ways S82441 is supplied — form, process route, surface or paperwork — without a datasheet of their own. The property values above apply.
| Option | What it is | Type |
|---|---|---|
HR-SA-PLATE | Hot rolled plate, solution annealed and pickled | Supply form |
TUBE-SA | Welded or seamless tube, solution annealed | Supply form |
What is S82441?
A mid-to-high alloyed duplex stainless steel (~24-25% Cr, ~6% Ni, ~3% Mo, PREN ~34) that bridges standard 2205 and super duplex 2507 in corrosion resistance, favored for chemical tankers and process vessels needing good weldability without full super-duplex cost. S82441 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). S82441 has a yield strength of 550 MPa (79.8 ksi) and a tensile strength of 800 MPa (116 ksi) — stronger than 83% of stainless steel grades. Elongation at break is 30% and the elastic modulus is 200 GPa (29 Msi).
What is S82441 used for?
- chemical tankers
- pressure vessels
- heat exchangers
- marine process equipment
Advantages
- High strength — 550 MPa (79.8 ksi), better than 83% of stainless steel grades
Limitations
- Limited service temperature — 280°C (536 °F), worse than 96% of stainless steel grades
S82441 properties
Typical room-temperature values for S82441-SA; bars are the position among stainless steel grades.
Physical3
S82441 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).
Mechanical15
S82441 has a yield strength of 550 MPa (79.8 ksi) and a tensile strength of 800 MPa (116 ksi) — stronger than 83% of stainless steel grades. Elongation at break is 30% and the elastic modulus is 200 GPa (29 Msi).
Thermal6
S82441 is rated for continuous service to 280°C (536 °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
S82441 conducts electricity at 2.2 % IACS, worse than 61% of stainless steel grades.
Chemical & Environmental3
Corrosion resistance is very good (71/100), better than 70% of stainless steel grades.
Sustainability4
Producing a kilogram of S82441 takes about 55 MJ of energy and emits 5 kg of CO₂ — more than 50% of stainless steel grades. Typical recycled content is 60%.
Manufacturability7
S82441's machinability is poor (30/100, worse than 70% of stainless steel grades); weldability very good (75/100); formability good (55/100).
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. S82441 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with S82441
Is S82441 easy to machine?
Machine like 2205 but ~15% harder on tools: rigid setup, positive-rake coated carbide, low speed / heavy positive feed, flood coolant, avoid dwelling to prevent work hardening.
Can S82441 be welded?
Weldable by GTAW/GMAW/SMAW/SAW without preheat or PWHT; use over-alloyed 25.9.3/2209-type filler, heat input roughly 0.5–2.5 kJ/mm, interpass ≤150 °C, Ar+2%N2 backing to keep the weld ferrite near 30–60%.
Can S82441 be formed, bent or molded?
Cold forming needs ~2× the force and ~2× the springback of 304; hot form at 950–1150 °C followed by full solution anneal and quench — never stop-forming in the 300–1000 °C embrittlement range.
S82441 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 |
|---|---|---|
| Clow carbon for weldability | ≤ 0.03 | 0.02 |
| Si | ≤ 0.7 | 0.4 |
| Mnpartial nickel replacement, raises N solubility | 2.5 – 4 | 3 |
| P | ≤ 0.04 | 0.02 |
| S | ≤ 0.01 | 0 |
| Cr | 23 – 25 | 24 |
| Ni | 3 – 4.5 | 3.7 |
| Mo | 1 – 2 | 1.6 |
| Cu | 0.1 – 0.8 | 0.4 |
| Naustenite stabiliser, main contributor to PREN and strength | 0.2 – 0.3 | 0.27 |
| Fe | balance |
What surface finishes work on S82441?
Pickle (HNO3/HF) and passivate after hot work or welding to restore the passive film; electropolishing or mechanical polishing to Ra <0.8 µm markedly improves pitting resistance; not anodizable.
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 S82441 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- EN / DIN / Werkstoff-Nr.
- 1.4662X2CrNiMoN25-6-3
- Trade names
- SAF 2404
How much does S82441 cost?
S82441 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.
S82441 — frequently asked
What is S82441 used for?
S82441 is typically used for chemical tankers, pressure vessels, heat exchangers and marine process equipment. In short: between 2205 and 2507; PREN about 34; weldable without PWHT.
What is the yield strength of S82441?
S82441 has a typical yield strength of 550 MPa (79.8 ksi) and a tensile strength of 800 MPa (116 ksi) — stronger than 83% of stainless steel grades. Strength varies by condition: see the 6 listed tempers.
Is S82441 easy to machine?
Not especially — machinability is rated poor (30/100, worse than 70% of stainless steel grades). Machine like 2205 but ~15% harder on tools: rigid setup, positive-rake coated carbide, low speed / heavy positive feed, flood coolant, avoid dwelling to prevent work hardening.
Can S82441 be welded?
Yes — weldability is rated very good (75/100). Weldable by GTAW/GMAW/SMAW/SAW without preheat or PWHT; use over-alloyed 25.9.3/2209-type filler, heat input roughly 0.5–2.5 kJ/mm, interpass ≤150 °C, Ar+2%N2 backing to keep the weld ferrite near 30–60%.
What surface finishes work on S82441?
Pickle (HNO3/HF) and passivate after hot work or welding to restore the passive film; electropolishing or mechanical polishing to Ra <0.8 µm markedly improves pitting resistance; not anodizable.
Can S82441 be formed, bent or molded?
Cold forming needs ~2× the force and ~2× the springback of 304; hot form at 950–1150 °C followed by full solution anneal and quench — never stop-forming in the 300–1000 °C embrittlement range.
What is the maximum service temperature of S82441?
S82441 is rated for continuous use to about 280°C (536 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between S82441-SA and S82441-CD?
SA is the default condition — default supply condition for plate, sheet, bar, tube and fittings; best combination of ductility, toughness and corrosion resistance. CD: choose for close-tolerance small-diameter bar and higher strength fasteners/shafts; toughness and formability drop. Yield strength is 550 MPa in SA versus 700 MPa in CD.
How much does S82441 cost?
S82441 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
- ASTM A240/A240M — Chromium and Chromium-Nickel Stainless Steel Plate, Sheet and Strip (UNS S82441) — ASTM International (2023)
- EN 10088-2 / EN 10028-7 — Stainless steels, grade 1.4662 — CEN (2014)
- ASTM A789 / A790 — Duplex stainless steel tube and pipe — ASTM International (2021)
- Sandvik SAF 2404 duplex stainless steel datasheet — Alleima (formerly Sandvik Materials Technology) (2022)
- ASM Handbook Vol.1 — Properties and Selection: Irons, Steels and High-Performance Alloys — ASM International (1990)
- Practical Guidelines for the Fabrication of Duplex Stainless Steels — IMOA / International Molybdenum Association (2014)
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.