ASTM 4720H
2020-04-14 19:45:38| Steel Grade | : | ASTM 4720H |
| Tpye | : | Anti friction bearing carburizing steel①（ASTMA534—1994） |
| CHEMICAL COMPOSITION | ||
| C(％) | : | 0.17～0.23 |
| Si(％) | : | 0.15～0.35 |
| Mn(％) | : | 0.45～0.75 |
| P(％)≤ | : | 0.025 |
| S(％)≤ | : | 0.025 |
| Cr(％) | : | 0.30～0.60 |
| Mo(％) | : | 0.15～0.25 |
| Ni(％) | : | 0.85～1.25 |
| Other(％) | : | — |
| Remark： | ||
| ①, The steel grade is AISI/SAE series, the content have been adjusted for P, S and individual Si. | ||
| ②, It should have the following elements in steel if not specified: Cr≤0.20％，Mo≤0.10％，Ni≤0.25％，Cu≤0.35％. | ||
| ③, The whole aluminum and oxygen content should be the following:Alt≤0.050％，O2≤0.0015％. | ||
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ASTM 4817H
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ASTM 4620H
