合号 Alloy |
硬度 Hardness |
合金成分 Nominal Composition wt% | ||||||||
Fe | Cr | Si | B | W | Ni | Mo | Mn | C | ||
Fe 25 | 25 HRC | BAL | 15 | 3 | 3 | 20 | 2 | 0.2 | ||
Fe 40 | 40 HRC | BAL | 17 | 3 | 2 | V:0.5 | 12 | 1.2 | 0.1 | |
Fe 45 | 45 HRC | BAL | 5 | 4 | 4 | 30 | 0.6 | |||
Fe 50A | 50 HRC | BAL | 17 | 3.5 | 3.5 | 8 | 0.9 | |||
Fe 50B | 50 HRC | BAL | 5 | 3.5 | 2.5 | 9 | 3 | 2 | 0.6 | |
Fe 55 | 55 HRC | BAL | 16 | 3.5 | 2 | 5 | 1.2 | 0.2 | ||
Fe 60A | 60 HRC | BAL | 18 | 4 | 3.5 | V:0.5 | 9 | 2 | 1.5 | 2 |
Fe 60B | 60 HRC | BAL | 30 | 4 | 3.5 | 5 | 1.5 | 3.2 | ||
Fe 60C | 60 HRC | BAL | 25 | 3.5 | 2 | Cu:1 | 2.5 | 2 | 4.2 |