1.4959
| Material No. | 1.4959 |
|---|---|
| EN symbol (short) | X8NiCrAlTi32-21 |
| AISI/SAE | — |
| UNS | N 08811 |
| AFNOR | Z 8 NC 33-21 |
| BS | — |
| alloy | alloy 800HT |
| Registered work's label | Incoloy® alloy 800HT, Nicrofer® 3220HT |
| Standards | — |
Description
The elevated-temperature alloy 1.4959 (alloy 800HT) is mainly used in high-temperature plants.
Our product range in 1.4958 (alloy 800HT) are tubes and pipes, fittings and flanges, accessories.
Chemical composition ¹ | ||||||||
| C % | Si ≤ % | Mn ≤ % | P ≤ % | S ≤ % | Cr % | Mo | Ni % | V |
| 0,05-0,10 | 0,70 | 1,5 | 0,015 | 0,010 | 19,0-22,0 | 30,0-34,0 | ||
| Nb | Ti ² % | Al ² % | Co ≤ % | Cu ≤ % | N ≤ % | Fe | ||
| 0,25-0,65 | 0,25-0,65 | 0,5 | 0,5 | 0,03 | ||||
| ¹ in accordance with Key to Steel 2001 ² Al + Ti ≤ 0,70% | ||||||||
Special characteristics | ||
| Temperature range | Density kg/dm³ | Hardness(HB) |
|---|---|---|
| 1000°C (not suitable for the long-term operation under 700°C) | 7,94 | |
| Highest creep resistance at temperature range 700°C to 1000°C | ||
Welding filler |
| covered rod electrode 2.4648, 2.4621 |
Main fields of application (depending on the specific conditions of use) |
| industrial furnaces, thermal treatment facilities, chemical industry, pressure bomb, building of steam boilers, petrochemical industry, power plants, superheaters, reheating tubes, coal gasification |
| (all aforementioned specifications serve as a general orientation and have to be reviewed depending on the specific conditions of use) |