AFNOR X1NiCrMoCu31-27-4, 1.4563, Alloy 28, UNS N08028
Seamless circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Austenitic steel designed to deal with sour gas, phosphoric, sulphuric and acetic acids, and vinyl chloride It is used for heat exchangers, co
Chemical composition(mass fraction)(wt.%)
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | 0.020 | |||
| Si | 0.70 | |||
| Mn | 2.00 | |||
| P | 0.030 | |||
| S | 0.010 | |||
| Cr | 26.00 | 28.00 | ||
| Mo | 3.00 | 4.00 | ||
| Ni | 30.00 | 32.00 | ||
| N | 0.11 | |||
| Cu | 0.70 | 1.50 |
