General valve material Other information described in the metal gasket conditions
| material | HB max | Applicable temperature ℃ |
| Soft iron | 90 | 450 |
| 08 or 10 | 120 | 450 |
| 0Cr13 | 140 | 540 |
| 00Cr17Ni14Mo2 | 150 | 450 |
| 1Cr18Ni9Ti | 160 | 600 |
| 0Cr18Ni12Mo2Ti | 160 | 600 |
| 0Cr18Ni9 | 160 | 600 |
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