904L and Uranus B6 valves and their use.
The low carbon content in 904L, also known as Uranus B6®, makes this non-stabilized austenitic alloy resistant to sulfuric acid. It is non-magnetic, and is resistant to corrosion cracking and crevice corrosion.
904L and Uranus B6® material specification and equivalents
| European (DIN) Werkstoff number | 1.4539 |
| Unified Numbering System (UNS) | N08904 |
| Type | X1NiCrMoCu25-20-5 |
