Home / Steel Cutting Rule
Finishing and hardness
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| Classification | Symbol | Condition(狀態) |
| Annealed 燒鈍狀態 |
A | Annealed after cold rolling 冷間壓延狀態後燒鈍 |
| Skin-passed 調質壓延狀態 |
S | Ammealed and skin-pass after cold rolling 冷間壓延狀態後燒鈍，調質壓延 |
| Cold-rolled 冷間壓延狀態 |
H | as cold rolled 冷間壓延狀態 |
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| Classification(區分) | Symbol(記號) | Skin-passed標準調質狀態 | Cold-rolled冷間壓延狀態 |
| Carbon steel 炭素鋼 |
S 30CM | Hv Max.150 | Hv 150~240 |
| S 35CM | Hv Max.150 | Hv 150~240 | |
| S 45CM | Hv Max.160 | Hv 160~240 | |
| S 50CM | Hv Max.170 | Hv 170~260 | |
| S 55CM | Hv Max.170 | Hv 170~260 | |
| S 60CM | Hv Max.170 | Hv 170~280 | |
| S 65CM | Hv Max.170 | Hv 170~280 | |
| S 70CM | Hv Max.180 | Hv 170~280 | |
| S 75CM | Hv Max.180 | Hv 170~280 | |
| Carbon tool steel 炭素工具鋼 |
SK 2M | Hv Max.220 | Hv 220~300 |
| SK 3M | Hv Max.220 | Hv 220~300 | |
| SK 4M | Hv Max.210 | Hv210~280 | |
| SK 5M | Hv Max.200 | Hv 210~280 | |
| SK 6M | Hv Max.190 | Hv 190~260 | |
| Alloy tool sreel 合金工具鋼 |
SKS 5M | Hv Max.200 | Hv 200~280 |
| SKS 51M | Hv Max.210 | Hv 210~280 | |
| Cr-Mo Steel | SCM 415M | Hv Max.160 | Hv 160~230 |
| SCM 435M | Hv Max.180 | Hv 180~260 | |
| Spring steel | SUP 10 M | Hv Max.200 | Hv 200~260 |