EN W.Nr.: 1.4515 (G-X3CrNiMoCuN 26 6 3),
1.4517 (G-X3CrNiMoCuN 26 6 3 3).
ASTM: A351 & A744 gr. CD4MCu,
A890 gr. 1A,
A890 gr. 1B.
UNS: S32550, J93370, J93372, S39255+
PROPRIETARY: Ferralium® 255–SD50, 255–SD40 (Langley Alloys),
Uranus® 50M, 55, 52N, 52N+, 47N (Industeel),
Ferrinox® 255 (Advanced Metals).