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|