Alloy Information Report for Incoloy™ 890

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General Characteristics of Incoloy™ 890

With the addition of molybdenum and silicon, Incoloy™ 890 offers enhanced properties compared to Incoloy™ 800HT and Incoloy™ 803, providing better resistance to corrosion in high-temperature applications. A high-strength alloy, Incoloy™ 890 resists oxidation, sulfidation and carburization up to 2200°F (1204°C). 

Chemical Composition of Incoloy™ 890

• Nickel 42.5
• Chromium 25
• Aluminum 0.1
• Niobium 0.4
• Titanium 1 max
• Carbon 0.1
• Manganese 1 max
• Silicon 1.8
• Phosphorous 0.03 max
• Sulfur 0.015 max
• Copper 0.75 max
• Molybdenum 1.5
• Titanium 0.2
• Iron remainder

Heat Treatment of Incoloy™ 890

• Anneal by holding between 2050° and 2200° F (1121° and 1204°C) for a time based on thickness
• Rapid air cooling or water quenching
• Can be sensitized by carbide precipitation
  • Expose to intermediate temperature for longer times

Applications of Incoloy™ 890

• ID (inside diameter) finned tubes for ethylene production in the petrochemical industry

Weldability of Incoloy™ 890

• Conventional techniques
  • GMAW (gas metal arc)
  • GTAW (gas tungsten arc)
  • SMAW (submerged metal arc)
• Inconel Welding Electrode 117 and Inconel Filler Metal 617 to increase resistance to creep and stress rupture
• Inconel Filler Metal 52 and Inconel Welding Electrode 152 to increase resistance to high-heat corrosion
• Inconel Filler Metal 82 and Inco-Weld welding electrode to weld Incoloy™ 890 to structural or stainless steels in moderate heat applications

Fabricability of Incoloy™ 890

• Conventional techniques
• Similar to Incoloy™ 800HT and Incoloy™ 803

To Send a Request for Quote for Incoloy™ 890, please Click Here, or call 1.973.276.5000 or fax 1.973.276.5050.