Nickel Alloy UNS N08811 Incoloy 800HT
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Incoloy 800HT(UNS N08811, 1.4959, 1.4876) is a full austenitic low carbon nickel-iron-chromium alloy of the same series as Incoloy 800. The cobalt content in this alloy can be strictly controlled below 0.01%. Alloy 800HT has excellent creep strength at temperatures above 1290°F (700°C). If the application involves frequent temperature excursions under 1290°F (700°C) or parts of are permanently exposed to a temperature below 1290°F (700°C), Alloy 800H should be utilized.
Chemical specifications %
| Alloy 800HT – UNS N08811 | ||
| Element | Simbol | Maximum |
| Manganese | Mn | 1,5 |
| Sulfur | S | 0,015 |
| Silicon | Si | 1,00 |
| Nickel | Ni | 30,0-35,0 |
| Chrome | Cr | 19,0-23,0 |
| Copper | Cu | 0,75 |
| Aluminium | Al | 0,15-0,60 |
| Titanium | Ti | 0,15-0,60 |
| Aluminium+Titanium | Al+Ti | 0,85-1,20 |
| Iron | Fe | Balance |
Mechanical Properties
| Alloy 800HT – UNS N08811 | ||||||||
| Norm | Rm min. | Rp 0,2% min. | E4d min.% | Z min.% | T.I.(J) | HR B | HB | |
| B-407 (*) | 65 (450) | 25 (170) | 30 | |||||
| B-408 (*) | 65 (450) | 25 (170) | 30 | |||||
| B-409 | a | 65 (450) | 25 (170) | 30 | ||||
| b | 65 (450) | 25 (170) | 30 | |||||
| c | 65 (450) | 25 (170) | 30 | |||||
| B-514 | 65 (450) | 25 (170) | 30 | |||||
| B-564 | 65 (448) | 25 (172) | 30 | |||||
Characteristics Of Incoloy Alloy 800HT
- Excellent resistance to oxidation, sulfidation, and carburization
- Higher creep and rupture properties for high temperature situations above 1100°F (600°C)
- Resistant to high temperature corrosion and prolonged exposure
- Readily machined by standard methods
- Resistance to aqueous corrosion at moderate temperatures
Used Of Nickel Alloy 800HT
- Hydrocarbon cracking
- Industrial furnace and boiler components and equipment
- Equipment for Heat-Treating
- Pressure vessels and heat exchangers
- Chemical and Petrochemical processing
Packing&Delivery
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