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Duplex Steel UNS S32205 (F60) Round Bar & Rod Supplier in India
Nicorex Alloys is an ISO 9001 and ISO 14001 certified supplier based in Mumbai, India. We supply duplex S32205 round bar/ F60 round bar with EN 10204 3.1 mill test certificates on every shipment and NACE MR0175 compliant inventory.
UNS S32205 (ASTM A182 F60 / W.Nr. 1.4462) is the industry’s most widely specified duplex grade, engineered with tighter chemistry controls than its predecessor S31803 to guarantee a PREN ≈ 35 and reliable performance in aggressive chloride and sour-gas environments. The microstructure of S32205 has two phases: about 50% austenite and 50% ferrite. This gives it a yield strength above 448 MPa (65 ksi), which is about twice that of 316L stainless steel. It also has a minimum tensile strength of 655 MPa (95 ksi), 25% elongation, and a maximum hardness of 293 HBW, according to ASTM A276. S32205 tightens the nitrogen (0.14-0.20%) and chromium (22.0-23.0%) ranges of S31803, eliminating borderline heats that underperform in aggressive service.
Our duplex 2205 round bar is available in diameters from 6 mm to 350 mm, hot rolled and cold drawn, with service temperature from -50°C to +300°C. All bars ship in solution-annealed condition with ferrite content verified at 40-60%. Specifications include ASTM A276, A479, ASME SA276/SA479 for bar, and ASTM A182 Grade F60 for forged bar. Major users include the oil and gas, chemical, marine, desalination, pulp and paper, and water treatment industries. Also known as Duplex 2205, DSS S32205, SAF 2205, and X2CrNiMoN22-5-3.
Duplex S32205 Bar Specifications
| Standards | ASTM A276, A479, ASME SA276, SA479, A182 F60 |
|---|---|
| Forms | Round, Hex, Flat, Square, Forged Bar |
| Diameter | 6 mm – 350 mm |
| Length | 1000 – 6000 mm, custom cut |
| Condition | Solution Annealed (1020-1100°C, water quench) |
| Finish | Black, Bright, Rough Turned, Centreless Ground, Peeled, Polished |
Chemical Composition of Duplex UNS S32205 Bar
| Property | Carbon (C) | Silicon (Si) | Manganese (Mn) | Phosphorus (P) | Sulphur (S) | Chromium (Cr) | Nickel (Ni) | Molybdenum (Mo) | Nitrogen (N) | Iron (Fe) |
|---|---|---|---|---|---|---|---|---|---|---|
| S32205 (wt%) | ≤0.030 | ≤1.0 | ≤2.0 | ≤0.030 | ≤0.020 | 22.0-23.0 | 4.5-6.5 | 3.0-3.5 | 0.14-0.20 | Balance |
| S31803 (wt%) | ≤0.030 | ≤1.0 | ≤2.0 | ≤0.030 | ≤0.020 | 21.0-23.0 | 4.5-6.5 | 2.5-3.5 | 0.08-0.20 | Balance |
Mechanical Properties of ASTM A276 S32205 Bar
| Tensile Strength (min) | Yield Strength 0.2% Offset (min) | Yield Strength 1.0% Offset (min) | Elongation in 2 in. (min) | Hardness (max) |
|---|---|---|---|---|
| 655 MPa (95 ksi) | 450 MPa (65 ksi) | 500 MPa (73 ksi) | 25% | 293 HBW / 31 HRC |
S32205 yield is 2.6× that of 316L, enabling wall-thickness reduction in pressure vessels.
Physical Properties of S32205 Duplex Stainless Steel
| Property | Density | Melting Range | Thermal Conductivity (20°C) | Specific Heat (20°C) | Electrical Resistivity (20°C) | Thermal Expansion (30-100°C) | Elastic Modulus (20°C) | Magnetic Permeability |
|---|---|---|---|---|---|---|---|---|
| Value | 7.8 | 1420-1465 | 19 | 480 | 0.85 | 13.0 × 10⁻⁶ | 190 | Ferromagnetic (due to ferrite) |
| Unit | g/cm³ | °C | W/m·K | J/kg·K | µΩ·m | /°C | GPa | – |
Duplex Stainless Steel (DSS) S32205 Equivalent Grades
| UNS | Werkstoff Nr. | EN | AFNOR | JIS |
|---|---|---|---|---|
| S32205 | 1.4462 | X2CrNiMoN22-5-3 | Z2CND22-05-03 | SUS 329J3 |
Get Duplex Steel UNS S32205 (F60) Round Bar at Competitive Prices
Available Forms of Duplex Stainless Steel UNS S32205 Bar & Rod
Duplex F60 Round Bar
DSS UNS S32205 Hex Bar
Duplex S32205 Square Bar
Duplex Steel 2205 Flat Bar
DSS S32205 Forged Bar
Duplex Steel S32205 Bright Bar
Duplex UNS S32205 Rectangular Bar
Hot Forming, Welding & Machining of Duplex S32205 Bar
Hot form at 955-1230°C. Do not work below 955°C to avoid intermetallic formation. Solution anneal at 1040°C minimum with rapid water quench after all hot work.
Weld with ER2209 filler (AWS A5.9). No preheat needed. Interpass max 150°C. Use Ar + 2% N₂ for root shielding to maintain austenite in the HAZ. PWHT is not normally required. Perform ASTM A923 testing to check for harmful intermetallic phases in critical applications.
For machining, use rigid setups and new carbide inserts. Cutting forces run higher than 316L, but S32205 work-hardens less than fully austenitic grades.
Industries and Applications of Duplex 2205 Stainless Steel Round Bar
- Subsea manifold bolting, Christmas tree valve stems, downhole tool shafts, and riser tensioner bolts. NACE MR0175 is listed for H₂S-bearing environments.
- Pressure vessel nozzle studs, heat exchanger tie rods, reactor agitator shafts, and pump wear ring components.
- Propeller shafts, rudder stock, seawater pump shafts, and RO desalination hardware. A CPT above 35°C means the alloy performs reliably in seawater.
- Used for digester vessel hardware, bleach plant shafts, and agitator shafts in chlorine dioxide service.
- Used for brewery vessel hardware and parts in brine-handling pumps.
- Used for membrane housing bolts, seawater intake hardware, and bridge fasteners in coastal areas.
How to Order Duplex UNS S32205 Round Bar from Nicorex Alloys
- Product form (round, hex, flat, square, forged bar)
- Specification: ASTM A276/A479 or A182 F60
- Diameter, tolerance (H9-H12), and length
- Condition: solution annealed
- Surface finish and quantity
- Documentation: EN 10204 3.1 MTC, ferrite count, PREN calculation
- Dual certification to S31803 if needed
Frequently Asked Questions
What is the Price of S32205 Duplex Stainless Steel Round Bar per kg in India?
Why Specify S32205 Instead of S31803 for Critical Service?
Is Duplex S32205 Bar Suitable for Cryogenic Temperatures?
S32205 remains tough down to -50°C and gives Charpy impact values of at least 45 J at -40°C. Below -50°C, the ferrite phase changes from ductile to brittle behaviour. For cryogenic service, use austenitic grades like 316L.
Can S32205 Round Bar Replace 904L in Acid Service?
What Shielding Gas is Recommended for Welding S32205 Bar?
Use Ar + 2% N₂ for root shielding to maintain austenite in the HAZ. Pure argon for torch shielding with ER2209 filler. Nitrogen in the backing gas compensates for nitrogen loss during welding.