High Yield Strength Duplex Stainless Steel Grade 2205 UNS S32205 / S31803
0.3 - 60mm 2205 1.4462 UNS S32205 / S31803 Duplex Stainless Steel Sheet / Plate
Basic Specifications
Thickness Range: From 0.3mm to 60mm, covering a wide range of thicknesses to meet different application needs. For instance, thin sheets may be used for lightweight structures or decorative purposes, while thick plates can be employed in industrial equipment or building structures that require higher strength and load-bearing capacity.
Material Identification:
- 2205: This is a common designation for duplex stainless steel, which possesses a dual-phase structure of austenite and ferrite, combining the advantages of both, such as excellent strength and corrosion resistance.
- UNS S32205 / S31803: These are the steel designations under the Unified Numbering System (UNS) in the United States. This classification ensures consistency and interchangeability of steel materials across different industrial applications.
Chemical Properties
| C | Mn | Si | P | S | Cr | Mo | Ni | N | |
| 2205 (S31803) |
0.03 max |
2.0 max |
1.0 max |
0.03 max |
0.02 max |
min: 21.0 max: 23.0 |
min: 2.5 max: 3.5 |
min: 4.5 max: 6.5 |
min: 0.08 max: 0.20 |
| 2205 (S32205) |
0.03 max |
2.0 max |
1.0 max |
0.03 max |
0.02 max |
min: 22.0 max: 23.0 |
min: 3.0 max: 3.5 |
min: 4.5 max: 6.5 |
min: 0.14 max: 0.20 |
Mechanical Properties
| Grade | Tensile Strength ksi (min) |
Yield Strength 0.2% ksi (min) |
Elongation % | Hardness (HB) MAX |
| 2205 | 90 | 65 | 25 | 217 |
Application Fields
The material can be applied in various industries, including chemical, food, and architectural sectors. In the chemical industry, its excellent corrosion resistance makes it suitable for manufacturing chemical containers and pipelines. In the food industry, it meets hygiene and corrosion resistance requirements, making it ideal for food processing equipment. In the architectural industry, it can be used for structural components and decorative materials, showcasing its strength and aesthetic qualities.
Processing Methods:
- Welding: Welding operations are applicable, which are crucial for assembling large structural components and pipe connections, ensuring the integrity and sealing of the structure.
- Cutting: Cutting processes help shape the steel material to desired dimensions, meeting various design and usage requirements, such as creating specific shapes for parts or adapting steel on construction sites.
- Bending: Bending allows the steel to conform to various structural designs, such as manufacturing curved structures and bent pipe fittings, highlighting the material’s excellent plasticity.
- Decoiling: This operation is typically applicable for steel supplied in coil form. After decoiling, further processing operations like cutting and stamping can be conducted, facilitating the material's subsequent handling and use.
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