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2205 Stainless Steel｜Foshan Huili Metal Technology Co., Ltd.（佛山市惠利金属科技有限公司）
A duplex of roughly half austenite and half ferrite, with strength about twice 316L and chloride stress-corrosion cracking and pitting resistance far better than 316L — the workhorse for marine and chloride service.
2205不锈钢
DuplexA duplex of roughly half austenite and half ferrite, with strength about twice 316L and chloride stress-corrosion cracking and pitting resistance far better than 316L — the workhorse for marine and chloride service.
Standards
| GB (China) | 022Cr23Ni5Mo3N（旧00Cr22Ni5Mo3N） |
|---|---|
| EN (Europe) | 1.4462 / X2CrNiMoN22-5-3 |
| ASTM/UNS (USA) | 2205 / UNS S31803（S32205） |
| JIS (Japan) | SUS329J3L |
Chemical composition (wt%)
| Chemical composition (wt%) | % |
|---|---|
C | ≤0.030 |
Si | ≤1.00 |
Mn | ≤2.00 |
Cr | 22.0–23.0 |
Ni | 4.5–6.5 |
Mo | 3.0–3.5 |
N | 0.14–0.20 |
Density：7.80 g/cm³
Performance
A duplex of roughly half austenite and half ferrite, with strength about twice 316L and chloride stress-corrosion cracking and pitting resistance far better than 316L — the workhorse for marine and chloride service.
Use cases
Desalination, marine equipment, chemical pressure vessels, FGD, bridges and load-bearing corrosion-resistant structures.
Characteristics
High strength enables thinning and cost saving, with excellent chloride and pitting resistance; but lower toughness than pure austenite and limited low/high-temperature ranges.
Pitfalls & cautions
Related grades
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