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EN 10085-2001
Nitriding Steels. Technical Delivery Conditions
Material Designation Chemical Composition (%)
1.8519 (31CrMoV9)
C Si Mn P S Cr Mo V
Min 0.27 - 0.4 - - 2.3 0.15 0.1
Max 0.34 0.4 0.7 0.025 0.035 2.7 0.25 0.2
1.8516 (24CrMo13-6)
C Si Mn P S Cr Mo
Min 0.2 - 0.4 - - 3 0.5
Max 0.27 0.4 0.7 0.025 0.035 3.5 0.7
1.8515 (31CrMo12)
C Si Mn P S Cr Mo
Min 0.28 - 0.4 - - 2.8 0.3
Max 0.35 0.4 0.7 0.025 0.035 3.3 0.5
1.8505 (32CrAlMo7-10)
C Si Mn P S Cr Al Mo
Min 0.28 - 0.4 - - 1.5 0.8 0.2
Max 0.35 0.4 0.7 0.025 0.035 1.8 1.2 0.4
1.8522 (33CrMoV12-9)
C Si Mn P S Cr Mo V
Min 0.29 - 0.4 - - 2.8 0.7 0.15
Max 0.36 0.4 0.7 0.025 0.035 3.3 1 0.25
1.8550 (34CrAlNi7-10)
C Si Mn P S Ni Cr Al Mo
Min 0.3 - 0.4 - - 0.85 1.5 0.8 0.15
Max 0.37 0.4 0.7 0.025 0.035 1.15 1.8 1.2 0.25
1.8509 (41CrAlMo7-10)
C Si Mn P S Cr Al Mo
Min 0.38 - 0.4 - - 1.5 0.8 0.2
Max 0.45 0.4 0.7 0.025 0.035 1.8 1.2 0.35
1.8523 (40CrMoV13-9)
C Si Mn P S Cr Mo V
Min 0.36 - 0.4 - - 3 0.8 0.15
Max 0.43 0.4 0.7 0.025 0.035 3.5 1.1 0.25
1.8507 (34CrAlMo5-10)
C Si Mn P S Cr Al Mo
Min 0.3 - 0.4 - - 1 0.8 0.15
Max 0.37 0.4 0.7 0.025 0.035 1.3 1.2 0.25
For Reference Only