| 熱軋鋼 (M20) |
255~345 |
|
| 1/4硬(H01),0.51≤t≤0.91 (B-Scale) |
310~400 |
(HR) 39~64 |
| 1/4硬(H01),t>0.91 (B-Scale) |
310~400 |
(HR) 43~68 |
| 1/4硬(H01),0.30≤t≤0.71 (Superficial 30T) |
310~400 |
(HR) 45~61 |
| 1/4硬(H01),t>0.711 (Superficial 30T) |
310~400 |
(HR) 48~64 |
| 1/2硬(H02),0.51≤t≤0.91 (B-Scale) |
360~455 |
(HR) 55~74 |
| 1/2硬(H02),t>0.91 (B-Scale) |
360~455 |
(HR) 58~77 |
| 1/2硬(H02),0.30≤t≤0.71 (Superficial 30T) |
360~455 |
(HR) 56~68 |
| 1/2硬(H02),t>0.711 (Superficial 30T) |
360~455 |
(HR) 58~70 |
| 3/4硬(H03),0.51≤t≤0.91 (B-Scale) |
420~510 |
(HR) 65~77 |
| 3/4硬(H03),t>0.91 (B-Scale) |
420~510 |
(HR) 68~80 |
| 3/4硬(H03),0.30≤t≤0.71 (Superficial 30T) |
420~510 |
(HR) 64~70 |
| 3/4硬(H03),t>0.711 (Superficial 30T) |
420~510 |
(HR) 64~72 |
| 硬(H04),0.51≤t≤0.91 (B-Scale) |
470~550 |
(HR) 73~84 |
| 硬(H04),t>0.91 (B-Scale) |
470~550 |
(HR) 75~86 |
| 硬(H04),0.30≤t≤0.71 (Superficial 30T) |
470~550 |
(HR) 65~74 |
| 硬(H04),t>0.711 (Superficial 30T) |
470~550 |
(HR) 67~76 |
| 超硬(H06),0.51≤t≤0.91 (B-Scale) |
540~615 |
(HR) 76~87 |
| 超硬(H06),t>0.91 (B-Scale) |
540~615 |
(HR) 78~89 |
| 超硬(H06),0.30≤t≤0.71 (Superficial 30T) |
540~615 |
(HR) 69~76 |
| 超硬(H06),t>0.711 (Superficial 30T) |
540~615 |
(HR) 71~78 |
| 彈簧(H08),0.51≤t≤0.91 (B-Scale) |
585~650 |
(HR) 81~89 |
| 彈簧(H08),t>0.91 (B-Scale) |
585~650 |
(HR) 83~91 |
| 彈簧(H08),0.30≤t≤0.71 (Superficial 30T) |
585~650 |
(HR) ≥73 |
| 彈簧(H08),t>0.711 (Superficial 30T) |
585~650 |
(HR) 74~79 |
| Extra spring (H10),0.51≤t≤0.91 (B-Scale) |
≥605 |
(HR) ≥83 |
| Extra spring (H10),t>0.91 (B-Scale) |
≥605 |
(HR) ≥85 |
| Extra spring (H10),0.30≤t≤0.71 (Superficial 30T) |
≥605 |
(HR) ≥74 |
| Extra spring (H10),t>0.711 (Superficial 30T) |
≥605 |
(HR) ≥75 |