Introduction
Incoloy 800 is an iron-nickel-chromium alloy with moderate strength and good resistance to oxidation and carburization at elevated temperatures. It is particularly useful for high-temperature equipment in the petrochemical industry because the alloy doesn't form the embrittling sigma phase after long time exposure at 1200°F (649°C). Excellent resistance to chloride stress-corrosion cracking is another important feature of alloy 800.
Typical Uses and Applications
Incoloy 800 widely used for heat exchangers and process piping; carburizing fixtures and retorts; furnace components; electric range heating-element sheathing; extruded tubing for ethylene and steam methane reforming furnaces; ammonia effluent coolers.
Product Details
Chemical composition:
| Grade | Ni% | Cr% | Fe% | C% | Mn% | S% | Si% | Cu% | Al% | Ti% |
| Incoloy 800 | 30.0-35.0 | 19.0-23.0 | Min 39.5 | Max 0.10 | Max 1.50 | Max 0.015 | Max 1.0 | Max 0.75 | 0.15-0.60 | 0.15-0.60 |
Specifications:
| Grade | UNS | Werkstoff Nr. |
| Incoloy 800 | N08800 | 1.488 |
Physical Properties:
| Grade | Density | Melting Point |
| Incoloy 800 | 8.0 g/cm3 | 1350°C-1400 °C |
Mechanical Properties:
| Grade | Tensile Strength N/mm² | Yield Strength N/mm² | Elongation |
| Incoloy 800 | 520 | 205 | 30% |
Available Specifications:
| Grade | Pipe Smls | Pipe Welded | Tube Smls | Tube Welded | Sheet/Plate | Bar | Forging | Fitting |
| Incoloy 800 | B407 | B154 | B163 | B515 | B409 | B408 | B564 | B366 |
Available forms:
Incoloy 800 wire, bar, rod, strip, forging, plate, sheet, tube, fastener and other standard forms are available.