Zeron Fastners
Duplex and Super Duplex UNS S32750 Reducers
The Duplex and Super Duplex UNS S32750 Reducer is a crucial pipe fitting used to achieve a smooth and efficient transition between different pipe sizes in high-performance piping systems. Manufactured from Super Duplex UNS S32750 (F53 or 1.4410), these reducers inherit the alloy's dual-phase microstructure, providing high mechanical strength (nearly double that of standard austenitic grades) and exceptional resistance to localized corrosion, particularly pitting and chloride stress corrosion cracking (SCC). Available in two main types—Concentric Reducers for a symmetrical transition and Eccentric Reducers for maintaining a flush surface on one side (often the bottom for liquid drainage)—these fittings ensure proper flow efficiency while meeting the stringent pressure and corrosion demands of industries like oil & gas, chemical processing, and marine engineering, conforming to standards such as ASTM A815 and ASME B16.9. Zeron Fasteners manufactures these reducers for seamless and welded piping applications.
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Chemical Composition (UNS S32750)
| Element | Composition (%) |
|---|---|
| Chromium (Cr) | 24.0 to 26.0 |
| Nickel (Ni) | 6.0 to 8.0 |
| Molybdenum (Mo) | 3.0 to 5.0 |
| Nitrogen (N) | 0.24 to 0.32 |
| Carbon (C) | Max 0.030 |
| Silicon (Si) | Max 0.80 |
| Manganese (Mn) | Max 1.20 |
| Phosphorus (P) | Max 0.035 |
| Sulfur (S) | Max 0.020 |
Mechanical Properties (UNS S32750)
| Property | Minimum Value |
|---|---|
| Ultimate Tensile Strength | 800 MPa Min |
| Yield Strength (0.2% Proof) | 550 MPa Min |
| Elongation (A) | 15 % Min |
| Hardness (HBW Max) | 310 |
| Density | 7.8 g/cm³ |