We are professional Incoloy 825 Valve Seat Rings(UNS N08825, 2.4858, Alloy 825) from china
Incoloy 825 Specifications
Grade | UNS | W.Nr |
Incoloy 825 | N08825 | 2.4858 |
Incoloy 825 Chemical composition
Grade | % | Ni | Cr | Fe | C | Mn | Si | Cu | Mo | Al | Ti | P | S |
825 | 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 |
Incoloy 825 Mechanical properties:(Minimum value at 20°C)
Tensile Strength σb/MPa | Yield Strength σp0.2/MPa | Elongation σ5 /% |
550 | 220 | 30 |
Incoloy 825 Standard
Bar | Forging | Sheet/Strip | Wire | Pipe |
ASTM B408 | ASTM B564 | ASTM B409 | ASTM B408 | ASTM B407 ASTM B514 |
Incoloy 825 characteristics:
Excellent resistance to reducing and oxidizing acids
Good resistance to stress-corrosion cracking
Satisfactory resistance to localized attack like pitting and crevice corrosion
Very resistant to sulfuric and phosphoric acids
Good mechanical properties at both room and elevated temperatures up to approximately 1020° F
Permission for pressure-vessel use at wall temperatures up to 800°F
Incoloy 825 Corrosion Resistance
Alloy 825 has a high level of corrosion resistance. It resists general corrosion, pitting, crevice corrosion, intergranular
corrosion, and stress-corrosion cracking in both reducing and oxidizing environments.