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Metal Alloys |
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Alloy Home |
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Steels |
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Alloy Steels |
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Alloy Steel List |
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| * | For other AISI or Non-AISI, please use the search function above or check Grades. |
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Specific Alloy Steel |
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General Information |
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Further Details |
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Resources |
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Bibliography |
| AISI 4140 | |
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| Conditions | Hardness | ||
| T (°C) | Treatment | Method | Value |
| 25 | annealed at 815°C | HB | 197 |
| 25 | normalized at 870°C | HB | 302 |
| 25 | oil quenched, fine grained, tempered at 205°C | HB | 510 |
| 25 | oil quenched, fine grained, tempered at 315°C | HB | 445 |
| 25 | oil quenched, fine grained, tempered at 425°C | HB | 370 |
| 25 | oil quenched, fine grained, tempered at 540°C | HB | 285 |
| 25 | oil quenched, fine grained, tempered at 650°C | HB | 230 |
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