2.4660
| Material No. | 2.4660 |
|---|---|
| EN symbol (short) | NiCr20CuMo |
| AISI/SAE | — |
| UNS | N 08020 |
| AFNOR | — |
| B.S. | — |
| alloy | alloy 20 |
| Registered work's label | Nicrofer® 3620Nb |
| Standards | — |
Description:
Material 2.4660 (alloy 20) is a high-corrosion resistant alloy, which shows very good resistance to phosphoric acid, nitric acid, sulfuric acid in chloric media.
2.4660 (alloy 20) is chiefly used in the chemical industry, apparatus engineering and heat exchangers.
Our product range in 2.4660 (alloy 20) are tubes and pipes, fittings and flanges, accessories.
Chemical composition ¹ | ||||||||
| C ≤ % | Si ≤ % | Mn ≤ % | P ≤ % | S ≤ % | Cr % | Mo % | Ni % | V % |
| 0,07 | 1,0 | 2,0 | 0,025 | 0,015 | 19,0-21,0 | 2,0 –3,0 | 32,0-38,0 | |
| Nb % | Ti ≤ % | Al % | Co ≤ % | Cu ≤ % | N % | Fe ≤ % | Ce % | Y ≤ % |
| >=8xC ≤ 1,0 ² | 1,5 | 3,0–4,0 | rest | |||||
| ¹ in accordance with Key to Steel 2001 ² Nb+Ta | ||||||||
Special characteristics | ||
| Temperature range | Density kg/dm³ | Hardness |
|---|---|---|
| typically up to 500°C | 8,08 | |
Welding filler |
| Electrode 2.4609 |
Main fields of application (depending on the specific conditions of use) |
| chemical industry, phosphoric acid, sulphuric acid, hydrofluoric acid, heat exchangers, apparatus engineering, food industry |
| (all aforementioned specifications serve as a general orientation and have to be reviewed depending on the specific conditions of use) |