F6NM, S41500, 1.4313, X3CrNiMo13-4, 415,
X6NiCrTiMoVB25-15-2, A-286, 660, 660B, S66286, Z6NCT25, 1.4980, 1.3980, 1.4606, 1.4944,
Steel grade
Special steel