Zeron Fastners
Duplex and Super Duplex UNS S32205 Rivets
Duplex and Super Duplex UNS S32205 Rivets are permanent mechanical fasteners used to join components by plastically deforming the tail end (bucktail or shop head) to create a head on the opposite side of the initial head (factory head). Manufactured from the enhanced Duplex Stainless Steel UNS S32205 (Alloy 2205), these rivets are crucial for forming robust, permanent, shear-resistant joints in structural and pressure-containing components. The material’s high strength and exceptional resistance to localized corrosion make it ideal for use in aggressive environments such as shipbuilding, structural engineering, and chemical storage tanks where vibration resistance and long-term joint integrity are critical.
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Duplex and Super Duplex UNS S32205 Rivets Chemical Composition
| Element | Content (%) |
|---|---|
| Carbon (C) | 0.030 max |
| Manganese (Mn) | 2.00 max |
| Silicon (Si) | 1.00 max |
| Phosphorus (P) | 0.030 max |
| Sulfur (S) | 0.020 max |
| Chromium (Cr) | 21.0 – 23.0 |
| Nickel (Ni) | 4.5 – 6.5 |
| Molybdenum (Mo) | 2.5 – 3.5 |
| Nitrogen (N) | 0.08 – 0.20 |
Duplex and Super Duplex UNS S32205 Rivets Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength (min) | 620 MPa (90 ksi) |
| Yield Strength (0.2% Offset min) | 450 MPa (65 ksi) |
| Elongation in 4D (min) | 25% |
| Hardness (Brinell max) | 290 HB |