Duplex 2205
Duplex 2205 is a nitrogen-alloyed duplex stainless steel combining austenitic and ferritic phases. It provides higher strength than standard austenitic stainless steels and strong resistance to chloride stress-corrosion cracking and localized corrosion.
Duplex 2205 Information
Duplex 2205 is a nitrogen-alloyed duplex stainless steel combining austenitic and ferritic phases. It provides higher strength than standard austenitic stainless steels and strong resistance to chloride stress-corrosion cracking and localized corrosion.
Metallic winding and compatible ring components where service conditions are suitable.
| Material specification | ASTM A240 |
|---|---|
| Specified grade / UNS | 2205 (S32205) S32205 |
Duplex 2205 Chemical Composition
ASTM A240 · Grade-specific requirements
| Element / requirement | Value |
|---|---|
| C % | ≤0.030 |
| Mn % | ≤2.00 |
| P % | ≤0.030 |
| S % | ≤0.020 |
| Si % | ≤1.00 |
| Cr % | 22.0–23.0 |
| Ni % | 4.5–6.5 |
| Mo % | 3.0–3.5 |
| N % | 0.14–0.20 |
| Cu % | - |
| Other elements | - |
Duplex 2205 Mechanical Properties
ASTM A240 · Grade-specific requirements
| Tensile min (MPa) | Yield min (MPa) | Elongation min (%) | Hardness max |
|---|---|---|---|
| 655 | 450 | 25 | ≤293 HBW |
ASTM A240 Grade Reference
2205 (S32205) S32205
The chemical and mechanical tables on this page use the ASTM A240 requirements for this grade, including the product conditions listed in the standard overview.
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