Alloy 800HT
(UNS N08811) Nickel-iron-chromium alloy. Has high strength and resistant to high temperature corrosion. Has higher creep rupture strength than alloy 800.
Chemistry
| Element |
C |
Mn |
S |
Si |
Cr |
Ni |
Cu |
Al |
Ti |
| Alloy 800HT |
0.06-0.10 |
1.50 max |
0.015 max |
1.0 max |
19.0-23.0 |
30.0-35.0 |
0.75 max |
0.25-0.60 |
0.25-0.60 |
Physical Constants
| Density | 0.287 lbs/in3 |
| Density | 7.94 g/cm3 |
Heating
| Forging | 1600ºF min 2200ºF |
| Annealing | 2100-2200ºF |
Viking Forging Parameters
| Rings | 18" O.D. max. | 80 lbs. |
| Sleeves | 18" O.D. max. | 80 lbs. |
| Disks | 16" Dia. max. | 80 lbs. |
| Round Bar | 7.5" Dia. X 63" long | 800 lbs. |
| Square/Rectangular Bar | 7.5" Square max. X 63" long | 800 lbs. |
| Blocks | | 80 lbs max. |
| Shafts | 7.5" Dia. max. X 63" long | 800 lbs. |
