Stainless Steel S32205-SA (Solution Annealed)
Heat-treated state · default condition
UNS S32205 · EN 1.4462, X2CrNiMoN22-5-3 · GB 022Cr23Ni5Mo3N
Standard supply condition for plate, sheet, pipe and bar — best combination of corrosion resistance and toughness.
Values for the SA condition
Other S32205 tempers and conditions
S32205 is listed in 4 conditions; see the grade overview at S32205.
Compare all 4 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Hot Finished bar / forging, solution annealed | Bars, forged flanges and valve bodies per ASTM A276/A182 F51. | 520 | 760 | 28 | 24 HRC | 2.2 % IACS |
SADefaultThis page Solution Annealed | Standard supply condition for plate, sheet, pipe and bar — best combination of corrosion resistance and toughness. | 550 | 790 | 30 | 25 HRC | — |
Cold drawn | Tight-tolerance shafting and fastener stock with raised strength and reduced ductility. | 700 | 880 | 20 | 30 HRC | 2.2 % IACS |
Cold worked | Springs, wire rope and fasteners where strength matters more than toughness or formability. | 950 | 1,100 | 10 | 35 HRC | 2.2 % IACS |
What is S32205-SA?
S32205-SA is S32205 heat treated to SA — standard supply condition for plate, sheet, pipe and bar — best combination of corrosion resistance and toughness. S32205-SA has a yield strength of 550 MPa (79.8 ksi) and a tensile strength of 790 MPa (115 ksi) — stronger than 83% of stainless steel grades. Elongation at break is 30% and the elastic modulus is 200 GPa (29 Msi). S32205-SA has a density of 7.8 g/cm³ (0.282 lb/in³), heavier than 50% of stainless steel grades. It melts at 1,420°C (2,588 °F).
Advantages
- Good corrosion resistance — 78/100, better than 84% of stainless steel grades
- High strength — 550 MPa (79.8 ksi), better than 83% of stainless steel grades
Limitations
- Limited service temperature — 300°C (572 °F), worse than 90% of stainless steel grades
S32205-SA properties
Typical room-temperature values for S32205-SA; 10 are specific to this condition. Other listed values are S32205 reference data and may not represent this condition. Bars are the position among stainless steel grades.
Physical3
S32205-SA has a density of 7.8 g/cm³ (0.282 lb/in³), heavier than 50% of stainless steel grades. It melts at 1,420°C (2,588 °F).
Mechanical16
S32205-SA has a yield strength of 550 MPa (79.8 ksi) and a tensile strength of 790 MPa (115 ksi) — stronger than 83% of stainless steel grades. Elongation at break is 30% and the elastic modulus is 200 GPa (29 Msi).
Thermal6
S32205-SA 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 13.2 µm/m·K (7.33 µin/in·°F).
Electrical3
S32205-SA conducts electricity at 2.2 % IACS, worse than 61% of stainless steel grades.
Chemical & Environmental3
Corrosion resistance is very good (78/100), better than 84% of stainless steel grades.
Sustainability4
Producing a kilogram of S32205-SA takes about 57 MJ of energy and emits 5 kg of CO₂ — more than 62% of stainless steel grades. Typical recycled content is 65%.
Manufacturability7
S32205-SA's machinability is poor (30/100, worse than 70% of stainless steel grades); weldability very good (70/100); formability fair (45/100).
Common Calculations5
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with S32205-SA
Is S32205 easy to machine?
Cuts like a work-hardening, high-strength stainless: use rigid setups, ~60–70% of 316L speeds, heavy positive feed to stay under the hardened skin, sharp coated carbide and copious coolant.
Can S32205 be welded?
Readily welded by GTAW/GMAW/SMAW with over-alloyed 2209/E2209 filler; keep heat input roughly 0.5–2.5 kJ/mm and interpass below 150 °C, avoid autogenous welds without post-weld anneal to preserve 50/50 ferrite-austenite.
Can S32205 be formed, bent or molded?
Cold forming needs roughly twice the force of 304 with large springback allowance; hot form at 1000–1200 °C followed by full solution anneal and quench — never finish between 300 and 950 °C.
What surface finishes work on S32205?
Pickle and passivate (HNO₃-HF) after welding or use mechanical descaling then passivation; electropolishing gives the best pitting performance; not anodizable.
S32205 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 | ≤ 1 | 0.4 |
| Mn | ≤ 2 | 1.4 |
| P | ≤ 0.03 | — |
| S | ≤ 0.02 | — |
| Cr | 22 – 23 | 22.5 |
| Ni | 4.5 – 6.5 | 5.6 |
| Mo | 3 – 3.5 | 3.2 |
| Naustenite stabiliser, raises PREN | 0.14 – 0.2 | 0.17 |
| Fe | balance | — |
S32205-SA — frequently asked
What is S32205-SA used for?
S32205-SA is typically used for oil and gas piping, chemical process vessels, desalination equipment and marine structures. In short: standard workhorse duplex; double the yield of 316L; chloride SCC resistant.
What is the yield strength of S32205-SA?
S32205-SA has a typical yield strength of 550 MPa (79.8 ksi) and a tensile strength of 790 MPa (115 ksi) — stronger than 83% of stainless steel grades. Strength varies by condition: see the 4 listed tempers.
Is S32205-SA easy to machine?
Not especially — machinability is rated poor (30/100, worse than 70% of stainless steel grades). Cuts like a work-hardening, high-strength stainless: use rigid setups, ~60–70% of 316L speeds, heavy positive feed to stay under the hardened skin, sharp coated carbide and copious coolant.
Can S32205-SA be welded?
Yes — weldability is rated very good (70/100). Readily welded by GTAW/GMAW/SMAW with over-alloyed 2209/E2209 filler; keep heat input roughly 0.5–2.5 kJ/mm and interpass below 150 °C, avoid autogenous welds without post-weld anneal to preserve 50/50 ferrite-austenite.
What surface finishes work on S32205-SA?
Pickle and passivate (HNO₃-HF) after welding or use mechanical descaling then passivation; electropolishing gives the best pitting performance; not anodizable.
Can S32205-SA be formed, bent or molded?
Cold forming needs roughly twice the force of 304 with large springback allowance; hot form at 1000–1200 °C followed by full solution anneal and quench — never finish between 300 and 950 °C.
What is the maximum service temperature of S32205-SA?
S32205-SA 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.
What is the difference between S32205-SA and S32205-CW?
SA is the default condition — standard supply condition for plate, sheet, pipe and bar — best combination of corrosion resistance and toughness. CW: springs, wire rope and fasteners where strength matters more than toughness or formability. Yield strength is 550 MPa in SA versus 950 MPa in CW.
Sources
- ASTM A240/A240M — Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip — ASTM International (2023)
- ASTM A790/A790M — Seamless and Welded Ferritic/Austenitic Stainless Steel Pipe — ASTM International (2023)
- EN 10088-2 — Stainless steels, grade 1.4462 (X2CrNiMoN22-5-3) — CEN (2014)
- GB/T 4237 / GB/T 20878 022Cr23Ni5Mo3N — SAC (2015)
- Outokumpu Forta DX 2205 / 1.4462 datasheet — Outokumpu (2022)
- Sandvik SAF 2205 tube and bar datasheet — Alleima (Sandvik Materials Technology) (2021)
- ASM Handbook Vol. 1 — Properties and Selection: Irons, Steels, and High-Performance Alloys — ASM International (1990)
Property data is compiled from published supplier and standards handbooks and normalised for comparison. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.