| 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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