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  C Mn Si S P Cr Ni Mo
EN-8 .35 - .45 .60 - 1.00 .10 - .35 .050 MAX .050 MAX - - -
EN-8D .40 - .45 .70 - .90 .05 - .35 .060 MAX .060 MAX - - -
EN-9 .50 - .60 .50 - .80 .05 - .35 .040 MAX .040 MAX - - -
EN-15 .30 - .40 1.30 - 1.70 .10 - .35 .040 MAX .040 MAX - - -
EN-16 .30 - .40 1.30 - 1.80 .10 - .35 .040 .040 - - .20 - .30
EN-18 .35 - .45 .60 - .95 .10 - .35 .040 .040 .85 - 1.15 - -
EN-19 .35 - .45 .50 - .80 .10 - .35 .040 .040 .90 - 1.40 - .20 - .40
EN-24 .35 - .45 .45 - .70 .10 - .35 .040 .040 .90 - 1.40 1.30 - 1.80 .20 - .40
EN-25 .27 - .35 .50 - .70 .10 - .35 .040 .040 .50 - .80 2.30 - 2.80 .40 - .70
EN-31 .90 - 1.20 .30 - .75 .10 - .35 .040 .040 1.00 - 1.60 - -
EN-36B .12 - .18 .30 - .60 .10 - .35 .040 .040 .60 - 1.10 3.00 - 3.75  
EN-36C .12 - .18 .30 - .60 .10 - .35 .040 .040 .60 - 1.10 3.00 - 3.75 .10 - .25
EN - 41B* .35 - .45 .60 MAX .10 - .45 .040 .040 1.50 - 1.80 .40 MAX .10 - .25
EN - 42 .70 - .85 .55 - .75 .10 - .40 .040 .040 - - -
EN - 45A .55 - .65 .70 - 1.00 1.70 - 2.0 .040 .040 - - -
EN - 47 .45 - .55 .50 - .80 .50 MAX .040 .040 .80 - 1.20 - -
EN - 48A .50 - .60 .60 - .90 1.35 - 1.65 .040 .040 .55 - .85 - -
EN - 353 .20 MAX .50 - 1.00 .35 MAX .040 .040 .75 - 1.25 1.00 - 1.50 .08 - .15
EN - 354 .20 MAX .50 - 1.00 .35 MAX .040 .040 .75 - 1.25 1.50 - 2.0 .10 - .20
16Mncr5 .14 - .19 1.00 -1.30 .15 - .40 .035 MAX .035 MAX .80- 1.10 - -
20Mncr5 .17 - .22 1.10 - 1.40 .10 - .35 .035 .035 1.00 - 1.30 - -
SAE - 4140 .38 - .43 .75 - 1.00 .20 - .35 .035 .035 .80 - 1.10 .15 - .25 -
SAE - 4150 .48 - .53 .75 - 1.00 .20 - .35 .040 .040 .80- 1.10 - .15 - .25
SAE -4320 .17 - .22 .45 - .65 .15 - .35 .035 MAX .040 MAX .40 - .60 1.65 -2.00 .20 - .30
SAE -4340 .38- .43 .60 - .80 .15 - .35 .035 MAX .040 MAX .70 - .90 1.65 -2.00 .20 - .30
SAE - 8620 .18 - .23 .70 - .90 .20 - .35 .040 .040 .40 - .60 .40 - .70 .15 - .25
SAE - 52100 .95 1.10 .25 - .40 .20 - .35 .025 .025 1.30 - 1.60 - -
F-22 .15 MAX .30 - .60 .40 MAX .040 .040 2.00 - 2.5 - .87 - 1.30
17crnimo6 .14 - .19 .40 - .60 .15 - .40 .035 MAX .035 MAX 1.50- 1.80 1.40 - 1.70 .25 - .35
A-105 .35 MAX .60 - 1.05 .35 MAX .050 MAX .040 MAX - - -
LF-2 .30 MAX .60 - 1.35 .15 - .30 .040 MAX .035 MAX - - -
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