Oystersteel Synonyms 904L, SUS904L, SUS 904L, Uranus Steel, SS2562, UNS N08904, WNR 1.4539, KS STS 317J5L, BS 904S13, WERKSTOFF NR. 1.4539, EN X1NiCrMoCu25-20-5, DIN 1.4539, & DIN 17440.