Applicabile alla fabbricazione dell'albero motore.
| Grado | Composizione chimica % | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| C | Sì | Mn | P | S | Cr | Ni | Luna | Cu | N | Altri | |
| 130M | 0.12 | 1.00 | 8.00-10.00 | 0.045 | 0.030 | 17.00-19.00 | 4.00-6.00 | 0.50 | 0.50 | 0.25-0.35 | - |
| 130H | 0.12 | 1.00 | 8.00-10.00 | 0.045 | 0.030 | 17.00-19.00 | 4.00-6.00 | 0.50 | 0.50 | 0.25-0.35 | - |
| 130T | 0.12 | 1.00 | 8.00-10.00 | 0.045 | 0.030 | 17.00-19.00 | 4.00-6.00 | 0.50 | 0.50 | 0.25-0.35 | - |
| 130TM | 0.12 | 1.00 | 8.00-10.00 | 0.045 | 0.030 | 17.00-19.00 | 4.00-6.00 | 0.50 | 0.50 | 0.25-0.35 | - |
| 420 J2 | 0.26-0.40 | 1.00 | 1.00 | 0.040 | 0.030 | 12.0-14.0 | - | - | - | - | - |
| 304 | 0.08 | 1.00 | 2.00 | 0.045 | 0.030 | 18.0-20.0 | 8.0-11.0 | - | - | - | - |
| 316 | 0.08 | 1.00 | 2.00 | 0.045 | 0.030 | 16.0-18.0 | 10.0-14.0 | 2.0-3.0 | - | - | - |
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