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AISI 1137 |
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| Conditions | Hardness |
| T (°C) | Treatment | Method | Value |
| 25 |
annealed at 790°C |
HB |
174 |
| 25 |
normalized at 900°C |
HB |
197 |
| 25 |
oil quenched, coarse grained, tempered at 650°C |
HB |
197 |
| 25 |
oil quenched, coarse grained, tempered at 650°C |
HB |
229 |
| 25 |
oil quenched, coarse grained, tempered at 650°C |
HB |
262 |
| 25 |
oil quenched, coarse grained, tempered at 650°C |
HB |
285 |
| 25 |
oil quenched, coarse grained, tempered at 650°C |
HB |
352 |
| 25 |
rolled |
HB |
192 |
| 25 |
water quenched, coarse grained, tempered at 205°C |
HB |
415 |
| 25 |
water quenched, coarse grained, tempered at 315°C |
HB |
375 |
| 25 |
water quenched, coarse grained, tempered at 425°C |
HB |
311 |
| 25 |
water quenched, coarse grained, tempered at 540°C |
HB |
262 |
| 25 |
water quenched, coarse grained, tempered at 650°C |
HB |
187 |
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