EN 10216-5 1.4462 Duplex Stainless Steel Pipe Duplex 2205 / UNS S32205 Seamless Pipe
EN 10216-5 1.4462 / UNS S32205 Duplex Stainless Steel Pipe Duplex 2205 Seamless Pipe
Equivalent Grade of 1.4462 / UNS S32205 Duplex Stainless Steel Seamless Pipes
| Grade | UNS No | Old British | Euronorm | Swedish SS | Japanese JIS | ||
|---|---|---|---|---|---|---|---|
| BS | En | No | Name | ||||
| 2205 | S31803 / S32205 | 318S13 | - | 1.4462 | X2CrNiMoN22-5-3 | 2377 | SUS 329J3L |
Chemical Composition of ASTM A790 UNS S32205 Duplex Stainless Steel Seamless Pipes
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | |
| UNS S32205 / 2205 | Min Max | - 0.030 | - 2.00 | - 1.00 | - 0.030 | - 0.020 | 22.0 - 23.0 | 3.0 - 3.5 | 4.5 - 6.5 | 0.14 - 0.20 |
Mechanical Composition of 1.4462 / UNS S32205 Duplex Stainless Steel Seamless Pipes
| Grade | Tensile Strength (MPa) min |
Yield Strength 0.2% Proof (MPa) min |
Elongation (% in 50mm) min |
Hardness | |
| Rockwell C (HR C) | Brinell (HB) | ||||
| UNS S32205 / 2205 | 621 | 448 | 25 | 31 max | 293 max |
Physical Properties of 1.4462 / UNS S32205 Duplex Stainless Steel Seamless Pipes
| Grade | Density (kg/cm3) |
Elastic Modulus (GPa) |
Mean Co-eff of Thermal Expansion (μm/m/°C) |
Thermal Conductivity (W/m.K) |
Specific Heat 0-100°C ( J/kg.K) |
Electrical Resistivity (nΩ.m) |
|||
| 0-100°C | 0-315°C | 0-538°C | at 100°C | at 500°C | |||||
| UNS S32205 / 2205 | 7.8 | 190 | 13.7 | 14.2 | - | 19 | - | 418 | 850 |
The main differences between EN 1021-5 1.4462 and ASTM A790 UNS S32205 duplex steel pipe:
| Criterion | EN 10216-5 1.4462 | ASTM A790 UNS S32205 |
|---|---|---|
| Manufacturing | Seamless only | Seamless or Welded |
| Chemistry | Less strict (allows S31803 low end) | Stricter (guarantees S32205 high end) |
| Impact Testing | Mandatory | Only if requested |
| Dimension System | Metric (mm) / European OD series | Imperial (NPS / Schedule) |
| Certification | EN 10204 (3.1 / 3.2) | ASTM A530 / A1016 report |
| Regional Approval | CE mark / PED required | ASME Code stamp / U-stamp compatible |
Applications
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Oil & Gas Industry: Downhole tubing, flowlines, and process piping for offshore platforms (subsea) containing CO₂ and H₂S (sour service).
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Chemical & Petrochemical: Heat exchangers, pressure vessels, and piping systems handling acids (sulfuric, phosphoric) and organic acids.
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Pulp & Paper: Digester blow lines and white liquor tanks.
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Marine Engineering: Seawater cooling systems and fire-fighting pipelines.
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Desalination Plants: High-pressure reverse osmosis piping.
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