Encapsulated tubing is one of RathGibson's unique capabilities. Below are its compositions.
Encapsulated tubing product information
| Grade |
304/304L |
316/316L |
825 |
| UNS Designation |
S30403 |
S31603 |
N08825 |
| Nickel (Ni) |
8.0 to 12.0 |
10.0 to 14.0 |
38.0 to 46.0 |
| Chromium (Cr) |
18.0 to 20.0 |
16.0 to 18.0 |
19.5 to 23.5 |
| Iron (Fe) |
— |
— |
Bal. |
| Molybdenum (Mo) |
— |
2.0 to 3.0 |
2.5 to 3.5 |
| Titanium (Ti) Max. |
— |
— |
— |
| Aluminum (Al) Max. |
— |
— |
— |
| Cobalt (Co) Max. |
— |
— |
— |
| Tungsten (W) |
— |
— |
— |
| Vanadium (V) Max. |
— |
— |
— |
| Copper (Cu) Max. |
— |
— |
— |
| Manganese (Mn) Max. |
2.0 |
2.0 |
1.0 |
| Niobium (Nb) plus Tantalum |
— |
— |
— |
| Carbon (C) Max. |
0.03 |
0.03 |
0.05 |
| Nitrogen (N) Max. |
— |
0.1 |
— |
| Silicon (Si) Max. |
0.75 |
0.75 |
0.5 |
| Sulphur (S) Max. |
0.03 |
0.03 |
0.03 |
| Phosphorous (P) Max. |
0.045 |
0.045 |
0.03 |
| Other Elements |
— |
— |
Cu=1.5 to 3.0 Al=0.2 Max, Ti = 0.6 to 1.2 |