UNS S32205 Duplex Stainless Steel
Introduction
Overview of UNS S32205 Duplex Stainless Steel
UNS S32205 is a duplex stainless steel alloy composed of 22% chromium and 3% molybdenum, also known as W.Nr. 1.4462. This grade offers enhanced resistance to chloride pitting and crevice corrosion compared to 317L stainless steel. It is ideally suited for applications in the temperature range of -50°F to +600°F, though usage beyond this range may be possible with certain limitations, particularly in welded structures.
Futures of UNS S32205 Duplex Stainless Steel
UNS S32205 Duplex steel material has very high corrosion resistance even to acidic conditions which makes it usable in chemical industries.
UNS S32205 Duplex Stainless Steel Applications
- Seawater systems
- Seawater pumps and valves
- Chemical process vessels, piping, and heat exchangers
- FGD scrubber systems
- Pulp mill digesters, bleach washers
- Food process equipment
- Oil field piping
UNS S32205 Duplex Stainless Steel Tags
- UNS Number: S32205
- Werkstoff Number: 1.4462
- ASTM: A240, A276, A815
- Other: ASME: SA 276
Quality Products
Technical Data
| ASTM/AISI | WERKSTOFF NR. | UNS | GOST | GB | JIS | DIN | EN | OR |
| S32205 (S31803) | 1.4462 | S32205 | – | 022Cr22Ni5Mo3N | SUS329J3L | – | – | – |
| Grade | Standard | C | Si | Mn | P | S | Cr | Ni | Mo |
| S32205 | ASTM A240 | ≤0.03 | ≤1.00 | ≤2.00 | ≤0.030 | ≤0.020 | 22.00-23.00 | 4.50-6.50 | 3.0-3.5 |
| Density | Melting Range | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 7.8 g/cm3 | 1050 – 1100°C | ≥655Mpa | ≥450Mpa | ≥25% |
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