Zeron Fastners
ZERON 100 Chemical Properties
Core Composition
ZERON 100 is a highly alloyed Super Duplex Stainless Steel (UNS S32760) whose exceptional corrosion resistance is directly derived from its composition. It features elevated levels of Chromium (Cr), Molybdenum (Mo), and Nitrogen (N), which together maximize the material's Pitting Resistance Equivalent Number (PREN), typically exceeding 40. This chemistry provides superior resistance to localized corrosion compared to standard duplex and austenitic alloys.
Chemical Composition (Weight %)
| Element | Content (%) |
|---|---|
| Chromium (Cr) | 24.0 – 26.0 |
| Nickel (Ni) | 6.0 – 8.0 |
| Molybdenum (Mo) | 3.0 – 4.0 |
| Copper (Cu) | 0.5 – 1.0 |
| Tungsten (W) | 0.5 – 1.0 |
| Nitrogen (N) | 0.20 – 0.30 |
| Carbon (C) | 0.030 max |
Corrosion Resistance Profile
The balanced Ferrite-Austenite microstructure, combined with the high alloy content, gives ZERON 100 outstanding durability against several corrosion forms:
- Pitting and Crevice Corrosion: Highly resistant, even in warm chloride solutions (e.g., seawater).
- Stress Corrosion Cracking (SCC): Excellent resistance in chloride environments, surpassing standard austenitic alloys.
- Erosion-Corrosion: The high strength and hardness of the material help it withstand erosive flow.