AISI 904L Stainless Steel Equivalent Grades Alloy 904L, wrought Condition Annealed UNS number N08904 US name AISI 904L, ASTM 904L EN name ~X1NiCrMoCu25-20-5 EN number ~1.4539 Tradenames URANUS B6, FO 25-20 U., NAS 255, SOUDINOX B6 AISI 904L Similar Compositions International: X1NiCrMoCu25-20-5 to ISO 16143-1, X1NiCrMoCu25-20-5 to ISO 16143-2, X1NiCrMoCu25-20-5 to ISO 16143-3, X1NiCrMoCu25-20-5 to … Continue reading AISI 904L Stainless Steel Equivalent Grades