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INCOLOY 825 Sheet
1 . Descriptions:
825 is an all-purpose project alloy, have good corrosion resistance of the acid and alkali metal property
in both oxidation and reduction environments. High nickel content made it with effective stress corrosion
cracking resistance performance. 825 have excellent corrosion resistance in different kinds of media,
such as sulfuric acid, phosphoric acid, nitric acid and organic acid, alkali metal such as sodium hydroxide,
potassium hydroxide, and hydrochloric acid. A variety of media corrosion of nuclear-burning dissolver
show 825 high integrated prpperty, like sulfuric acid, nitric acid and potassium hydroxide are all dealing
in a same device.
2 . Chemical Composition:
| Grade | ％ | Ni | Cr | Fe | C | Mn | Si | S | Al | Ti | Cu |
| 800 | Min | 30 | 19 | 39.5 | 0.15 | 0.15 | |||||
| Max | 35 | 23 | 0.1 | 1.5 | 1.0 | 0.015 | 0.6 | 0.6 | 0.75 |
| Alloy state | Tensile strength | Yield strength | Elongation | Brinell hardness |
| Rm N/mm² | R P0. 2N/mm² | A 5 % | HB | |
| 825 | 550 | 220 | 30 | ≤200 |
Applications include chemical processing, pollution control, oil and gas
recovery, acid production, pickling operations, nuclear fuel reprocessing, and handling of radioactive wastes.
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