800 Alloy
UNS N08800
Trade Name: INCOLOY® Alloy 800
A nickel-iron-chromium alloy with good strength and excellent resistance to oxidation and carburization in high-temperature atmospheres. It also resists corrosion by many aqueous environments. The alloy maintains a stable, austenitic structure during prolonged exposure to high temperatures. Used for process piping, heat exchangers, carburizing equipment, heating-element sheathing, and nuclear steam-generator tubing. Standard product forms are round, flats, forging stock, pipe, tube, plate, sheet, strip, and wire. (Information provided by Special Metals Corporation)
| ASME Boiler and Pressure Vessel Specifications | |||||||
| Sheet/ Plate | Forgings | Weld Fittings | Rod and Bar | Tubing - Welded/ Smls | Pipe - Welded/ Smls | Bolting- Bolts/ Nuts | Filler Metals |
| SB409 | SB564 | SB366 | SB408 | SB515/ SB407 | SB514/ SB407 | SB408-800/ SB408-800 | ERNiFeCr-1 |
| ASME Boiler and Pressure Vessel Chemical Requirements for Sheet/Plate | |||||||||
| Note: all percentages max unless otherwise specified | |||||||||
| Ni | Cr | Fe | Mn | C | Cu | Si | S | Al | Ti |
| 30.0-35.0 | 19.0-23.0 | 39.5 | 1.5 | 0.10 | 0.75 | 1.0 | 0.015 | 0.15-0.60 | 0.15-0.60 |
| ASME Boiler and Pressure Vessel Mechanical Properties for Sheet/Plate | |||
| Tensile Strength, Min ksi | Yield Strength, (0.2% offset), Min, ksi | Min. Elongation in 2", % | Density lb/in³ |
| 75 | 30 | 30.0 | 0.287 |
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