The Incoloy 825 nickel alloy has excellent resistance to stress corrosion cracking and to pitting and crevice corrosion. In addition, the Incoloy alloy 825 is especially resistant to reducing and oxidizing acids such as sulfuric acid, phosphoric acid and nitric acid, to organic acid, to alkalis including NaOH and KOH, and to hydrochloric acid.
The resistance of the nickel-iron-chromium alloy 825 to general and localized corrosion under diverse environments gives it unexpected usefulness. Applications include chemical processing and pollution control equipment, oil and gas well pipe, nuclear fuel recovery and pickling operation facilities.
Specification of Incoloy 825 Nickel Alloy Chemical Compositions Composition | Ni | Cr | Fe | C | Mn | Si | Cu | Mo | Al | Ti | P | S |
Content (%) | Min. | 38 | 19.5 | Bal. | | | | 1.5 | 2.5 | | 0.6 | | |
Max. | 46 | 23.5 | 0.05 | 1 | 0.5 | 3 | 3.5 | 0.2 | 1.2 | 0.03 | 0.03 |
Mechanical Properties (Minimum value at 20℃) Tensile Strength (σb/MPa) | Yield Strength (σp0.2/MPa) | Elongation (σ5/%) |
550 | 220 | 30 |
Product Forms and Standards Bar | Forging | Sheet/Strip | Wire | Pipe |
ASTM B408 | ASTM B564 | ASTM B409 | ASTM B408 | ASTM B407 ASTM B514 |