Incoloy 925 (UNS N09925)
Incoloy 925 (UNS N09925) is a precipitation-hardenable nickel-iron-chromium alloy with additions of molybdenum and copper. It combines the high strength of a precipitaiton-hardenable alloy with the excellent corrosion resistance of Incoloy alloy 825.
Equivalent Grades
Trademarks | GB | JIS | KS | ASTM | UNS | DIN | W.Nr | GOST | BS | NF |
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Incoloy 925 | – | – | – | Incoloy 925 | N09925 | – | 2.4858 | – | – | – |
Product Forms
Wire, Bar, Strip, Sheet, Plate, Tube, Pipe, Pipe Fittings, Forgings
Chemical Composition,%
C | P | S | Mn | Si | Cr | Ni | Mo | Al | Ti | Cu | Fe |
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≤0.03 | ≤0.03 | ≤0.03 | ≤1.00 | ≤0.50 | 19.50~22.50 | 42.00~46.00 | 2.50~3.50 | 0.10~0.50 | 1.90~2.40 | 1.50~3.00 | Bal |
Typical Physical & Mechanical Properties (RT, Precipitation Hardened)
Density, g/cm3 | Melting Point, ℃ | Tensile Strength, MPa | Yield Strength, MPa | Elongation,% |
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8.08 | 1311-1366 | 1210 | 810 | 24 |
Specifications
Rod, Bar, Wire, Forgings | ASTM B408/ASME SB408, ASTM B564/ASME SB564, ISO 9723/9724/9725 |
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Plate, Sheet, Strip | ASTM A240/A480/B409/B906/ASME SA240/SA480/SB409/SB906, ISO 6208 |
Pipe, Tube | ASTM B163/ASME SB163, ASTM B407/B829/ASME SB407/SB829, ASTM B514/B775/ASME SB514/SB775, ASTM B515/B751/ASME SB515/SB751, ISO 6207 |
Others | ASTM B366/ASME SB366(Fittings) |
Features
- Protection in oxidizing and reducing atmosphere
- Resistance to chloride ion stress-corrosion cracking
- Excellent resistance to pitting and crevice corrosion
Applications
- Valves, hangers, packers, and tubulars for sour gas production
- Marine fasteners and pump shafts