Carbon Steels and Alloy Steels
DIN 17200
Chemical Composition, %
Steel Grade C Si Max Mn P Max S Max Cr Mo Ni V
C 22 .17/.24 .40 .30/.60 .045 .045
Ck 22 .17/.24 .40 .30/.60 .035 .03
Cm 22 .17/.24 .40 .30/.60 .035 .020/.035
C 25 .22/.29 .40 .40/.70 .045 .045
Ck 25 .22/.29 .40 .40/.70 .035 .03
Cm 25 .22/.29 .40 .40/.70 .035 .020/.035
C 30 .27/.34 .40 .50/.80 .045 .045
Ck 30 .27/.34 .40 .50/.80 .035 .03
Cm 30 .27/.34 .40 .50/.80 .035 .020/.035
C 35 .32/.39 .40 .50/.80 .045 .045
Ck 35 .32/.39 .40 .50/.80 .035 .03
Cm 35 .32/.39 .40 .50/.80 .035 .020/.035
C 40 .37/.44 .40 .50/.80 .045 .045
Ck 40 .37/.44 .40 .50/.80 .035 .03
Cm 40 .37/.44 .40 .50/.80 .035 .020/.035
C 45 .42/.50 .40 .50/.80 .045 .045
Ck 45 .42/.50 .40 .50/.80 .035 .03
Cm 45 .42/.50 .40 .50/.80 .035 .020/.035
C 50 .47/.55 .40 .60/.90 .045 .045
Ck 50 .47/.55 .40 .60/.90 .035 .03
Cm 50 .47/.55 .40 .60/.90 .035 .020/.035
C 55 .52/.60 .40 .60/.90 .045 .045
Ck 55 .52/.60 .40 .60/.90 .035 .03
Cm 55 .52/.60 .40 .60/.90 .035 .020/.035
C 60 .57/.65 .40 .60/.90 .045 .045
Ck 60 .57/.65 .40 .60/.90 .035 .03
Cm 60 .57/.65 .40 .60/.90 .035 .020/.035
28 Mn 6 .25/.35 .40 1.30/1.65 .035 .03
32 Cr 2 .28/.35 .40 .50/.80 .035 .03 .40/.60
32 CrS 2 .28/.35 .40 .50/.80 .035 .020/.035 .40/.60
38 Cr 2 .35/.42 .40 .50/.80 .035 .03 .40/.60
38 CrS 2 .35/.42 .40 .50/.80 .035 .020/.035 .40/.60
46 Cr 2 .42/.50 .40 .50/.80 .035 .03 .40/.60
46 CrS 2 .42/.50 .40 .50/.80 .035 .020/.035 .40/.60
28 Cr 4 .24/.31 .40 .60/.90 .035 .03 .90/1.20
28 CrS 4 .24/.31 .40 .60/.90 .035 .020/.035 .90/1.20
34 Cr 4 .30/.37 .40 .60/.90 .035 .03 .90/1.20
34 CrS4 .30/.37 .40 .60/.90 .035 .020/.035 .90/1.20
37 Cr 4 .34/.41 .40 .60/.90 .035 .03 .90/1.20
37 CrS 4 .34/.41 .40 .60/.90 .035 .020/.035 .90/1.20
41 Cr 4 .38/.45 .40 .60/.90 .035 .03 .90/1.20
41 CrS 4 .38/.45 .40 .60/.90 .035 .020/.035 .90/1.20
25 CrMo 4 .22/.29 .40 .60/.90 .035 .03 .90/1.20 .15/.30
25 CrMoS 4 .22/.29 .40 .60/.90 .035 .020/.035 .90/1.20 .15/.30
34 CrMo 4 .30/.37 .40 .60/.90 .035 .03 .90/1.20 .15/.30
34 CrMoS 4 .30/.37 .40 .60/.90 .035 .020/.035 .90/1.20 .15/.30
42 CrMo 4 .38/.45 .40 .60/.90 .035 .03 .90/1.20 .15/.30
42 CrMoS 4 .38/.45 .40 .60/.90 .035 .020/.035 .90/1.20 .15/.30
50 CrMo 4 .46/.54 .40 .50/.80 .035 .03 .90/1.20 .15/.30
36 CrNiMo 4 .32/.40 .40 .50/.80 .035 .03 .90/1.20 .15/.30 .90/1.20
34 CrNiMo 6 .30/.38 .40 .40/.70 .035 .03 1.40/1.70 .15/.30 1.40/1.70
30 CrNiMo 8 .26/.34 .40 .30/.60 .035 .03 1.80/2.20 .30/.50 1.80/2.20
50 CrV 4 .47/.55 .40 .70/1.10 .035 .03 .90/1.20 .10/.20
30 CrMoV 9 .26/.34 .40 .40/.70 .035 .03 2.30/2.70 .15/.25 .10/.20

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