High Carbon Chromium Bearing Steels
JIS G 4805
Chemical Composition, %
Symbol C Si Mn P S Cr Mo
SUJ 1 .95/1.10 .15/.35 .50 max .025 max .025 max .90/1.20
SUJ 2 .95/1.10 .15/.35 .50 max .025 max .025 max 1.30/1.60
SUJ 3 .95/1.10 .40/.70 .90/1.15 .025 max .025 max .90/1.20
SUJ 4 .95/1.10 .15/.35 .50 max .025 max .025 max 1.30/1.60 .10/.25
SUJ 5 .95/1.10 .40/.70 .90/1.15 .025 max .025 max .90/1.20 .10/.25

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