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MedicalNickel 825 is an austenitic nickel-iron-chromium alloy with additions of molybdenum, copper and titanium. It was developed to provide exceptional corrosion resistance in both oxidizing and reducing environments. The alloy is resistant to chloride stress-corrosion cracking and pitting. Alloy 825 is especially resistant to sulfuric and phosphoric acids. This nickel steel alloy is used for chemical processing, pollution-control equipment, oil and gas components, nuclear fuel reprocessing, acid production, and pickling equipment. (UNS N08825)
Chemical Makeup
| Element | Min | Max |
|---|---|---|
| Carbon, C | - | 0.05 |
| Manganese, Mg | - | 1 |
| Silicon, Si | 1 | 0.5 |
| Sulfur, S | - | 0.03 |
| Chromium, Cr | 19.5 | 23.5 |
| Molybdenum, Mo | 2.5 | 3.5 |
| Nickel, Ni | 38 | 46 |
| Copper, Cu | 1.5 | 3 |
| Aluminum, Al | - | 0.6 |
| Titanium, Ti | 0.6 | 1.2 |
| Iron, Fe | 22 | - |
Common Applications
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Industrial
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Power Generation
Benefits
- Exceptional Corrosion Resistance
- Oxidation Resistance
We stock NI-825 to the following specifications:
- ASME-SB-425
- ASTM-B-425
- UNS-N-08825
Click on a cross-section to see the sizes we stock: