Incoloy 800H Nickel Alloy Plate for Petrochemical Plants, Industrial Furnaces, Heat Exchangers and High Temperature Equipment

ASTM B409 Incoloy 800H Nickel Alloy Plate

Incoloy 800H (UNS N08810 / W.Nr. 1.4958) is a nickel-iron-chromium based high-temperature alloy known for its excellent high-temperature strength, oxidation resistance, carburization resistance, and corrosion resistance. With controlled carbon content and proper heat treatment, it provides superior creep and stress rupture strength under prolonged high-temperature conditions. It is widely used in petrochemical processing, steam reformers, ethylene cracking furnaces, industrial heating equipment, heat exchangers, and high-temperature processing systems.

Key Features and Advantages

• Excellent Creep & Rupture Resistance: Designed for long-term load-bearing service under high temperature.

• Good High-Temperature Oxidation Resistance: Forms stable protective oxide layer at elevated temperatures.

• Reliable Corrosion Resistance: Resists carburization, nitriding and many hot corrosive atmospheres.

• Stable Austenite Microstructure: Maintains consistent performance after prolonged heating cycles.

• Good Fabricability: Suitable for cutting, forming and welding with proper procedures.

Typical Applications

• Radiant tubes, furnace muffles, retorts and heat treatment fixtures

• Ethylene cracking furnaces, reformer tubes and petrochemical high-temperature equipment

• Power plant superheaters, high-temperature heat exchangers

• Nuclear reactor heat exchange components

• Thermal processing, carburizing furnace internals

Technical Specifications

• Product Name: Incoloy 800H Nickel Alloy Plate

• Material Designation: UNS N08810

• Material No.: W.Nr. 1.4958

• Alloy Family: Nickel-Iron-Chromium High Temperature Alloy

• Product Form: Plate / Sheet

• Reference Standard: ASTM B409, ASME SB409, EN 10095

• Thickness: Available per customer drawing & manufacturing capacity

• Width & Length: Standard or custom sizes

• Surface Condition: Hot rolled, pickled, ground, as agreed

• Inspection: MTC, dimensional check, PMI, mechanical & chemical test available

Quality Assurance

Products can be supplied according to agreed specifications, with chemical composition verification, mechanical testing, dimensional inspection, surface examination and material traceability where required. Material certificates and additional inspection documentation are available according to the purchase order and applicable product requirements.

Contact our sales team today for a competitive quote, technical datasheet, or to discuss your custom forging requirements.