Features:
UNS Number N08810
Incoloy 800H has a restricted carbon content range of 0.05 to 0.10%, which is in the upper portion of that of Incoloy 800, and is annealed at 1149 to 1177℃ (Incoloy 800 is annealed at 983 to 1038℃). These differences impart it to have higher stress rupture and creep properties than Incoloy 800.
Applications:
Chemical and petrochemical process piping, high temperature heat exchangers, furnace components, carburizing equipment, heating-element sheathing, and nuclear power steam superheating tubing.
Forms of Incoloy 800H available at BAIDE ALLOY
• Sheet
• Plate
• Bar
• Pipe & Tube (welded & seamless)
• Fittings (i.e. flanges, slip-ons, blinds, weld-necks, lapjoints, long welding necks, socket welds, elbows, tees, stub-ends, returns, caps, crosses, reducers, and pipe nipples)
• Wire
Chemical composition:
| % | Fe | Ni | Cr | C | Mn | Si | S | Cu | Al | Ti |
|---|---|---|---|---|---|---|---|---|---|---|
| Min | 39.5 | 30.0 | 19.0 | 0.05 | 0.15 | 0.15 | ||||
| Max | 35.0 | 23.0 | 0.10 | 1.50 | 1.00 | 0.015 | 0.75 | 0.60 | 0.60 |
Physical properties:
| Density | 7.94 g/cm3 |
| Melting range | 1357-1385℃ |
ASTM Specifications
| Alloy | Pipe Smls | Pipe Welded | Tube Smls | Tube Welded | Sheet/Plate | Bar | Forging | Fitting |
|---|---|---|---|---|---|---|---|---|
| Alloy 800 (UNS N08800) | B407 | B154 | B163 | B515 | B409 | B408 | B564 | B366 |
| Alloy 800H (UNS N08810) | B407 | B154 | B163 | B515 | B409 | B408 | B564 | B366 |
| Alloy 800HT (UNS N08811) | B407 | B154 | B163 | B515 | B409 | B408 | B564 | B366 |
