高速鋼主要用於製造高效率的切削刀具。在高速切削時其刀具刃口因摩擦而產生高熱(約 600℃),仍然不致使鋼發生退火軟化,高速工具鋼主要用於製造高效率的切削刀具, 具備熱硬性、耐磨性、高強度且保持其硬度及切削能力稱為高速鋼。因在高溫不但不易軟化反而增加硬度,此稱為紅熱硬性或二次硬化。 高速鋼的種類繁多,可分為鎢系、鉬系、鎢鉬系、釩高速鋼、鈷高速鋼五大類;按性能可分低合金高速鋼、普通高速鋼、高性能高速鋼。 W鎢系高速鋼 : 鎢系高速鋼因鎢之含量高達12w.t.%,具有高強度、硬度及耐磨耗性,以JIS SKH2 ~ 10為代表。 Mo鉬系高速鋼 : 鉬系高速鋼韌性最高,具有適當之耐熱及耐磨耗性,以JIS SKH51 ~ 59為代表。
高速鋼被廣泛應用於各種切割器材的刀具,包括車床的車刀,銑床的銑刀和鑽床的鑽頭。由於高速鋼比高碳鋼耐用,即使是常見的手工具,例如鋸片,都會採用高速鋼製造。
標準代號 | 規格號碼 | 材料號碼 | 記號 |
---|---|---|---|
JIS | G4404 | SKH2 | |
CNS | 2904 | SKH2 | |
JIS | G4403 | SKH2 | |
GB | 9943 | W18Cr4V | |
ASTM | A600 | T1 | |
DIN | 17350 | 1.3355 | S 18-0-1 |
CNS | 2904 | SKH3 | |
JIS | G4403 | SKH3 | |
GB | 9943 | W18Cr4V5Co5 | |
ASTM | A600 | T4 | |
DIN | 17350 | 1.3255 | S 18-1-2-5 |
CNS | 2904 | SKH4 | |
JIS | G4403 | SKH4 | |
GB | 9943 | W18Cr4V2Co8 | |
ASTM | A600 | T5 | |
DIN | 17350 | 1.3265 | S 18-1-2-10 |
CNS | 2904 | SKH10 | |
JIS | G4403 | SKH10 | |
GB | 9943 | W12Cr4V5Co5 | |
ASTM | A600 | T15 | |
DIN | 17350 | S 12-1-4-5 | |
DIN | 17350 | 1.3202 | S 12-1-4-5 |
CNS | 2904 | SKH51 | |
JIS | G4403 | SKH51 | |
GB | 9943 | W6Mo5CrV2 | |
ASTM | A600 | M2 | |
DIN | 17350 | 1.3342 | S 6-5-2 |
CNS | 2904 | SKH52 | |
JIS | G4403 | SKH52 | |
GB | 9943 | W6Mo5Cr4V3 |
碳(C)% | 矽(Si)% | 錳(Mn)% | 磷(P)% | 硫(S)% | 鎳(Ni)% | 鉻(Cr)% | 鉬(Mo)% | 銅(Cu)% | 鎢(W)% | 鈷(Co)% | 釩(V)% | 退火HB | 淬火HRC |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
0.73~0.83 | ≦ 0.4 | ≦ 0.4 | ≦ 0.03 | ≦ 0.03 | ≦ 0.25 | 3.8~4.5 | ≦ 0.25 | 17~18.7 | 1~1.2 | ≦ 269 | ≧ 63 | ||
0.73~0.83 | ≦ 0.4 | ≦ 0.4 | ≦ 0.03 | ≦ 0.03 | ≦ 0.25 | 3.8~4.5 | ≦ 0.25 | 17~18.7 | 1~1.2 | ||||
0.73~0.83 | ≦ 0.4 | ≦ 0.4 | ≦ 0.03 | ≦ 0.03 | ≦ 0.25 | 3.8~4.5 | ≦ 0.25 | 17~18.7 | 1~1.2 | ||||
0.7~0.8 | 0.2~0.4 | 0.1~0.4 | ≦ 0.03 | ≦ 0.03 | ≦ 0.3 | 3.8~4.4 | ≦ 0.3 | 17~19.5 | 1~1.4 | ≦ 255 | ≧ 63 | ||
0.65~0.8 | 0.2~0.4 | 0.1~0.4 | ≦ 0.03 | ≦ 0.03 | 3.75~4.5 | 17.25~18.25 | 0.9~1.3 | ≦ 255 | ≧ 63 | ||||
0.7~0.8 | ≦ 0.45 | ≦ 0.4 | ≦ 0.03 | ≦ 0.03 | 3.8~4.4 | 17.5~18.5 | 1~1.2 | 240~300 | ≧ 64 | ||||
0.73~0.83 | ≦ 0.4 | ≦ 0.4 | ≦ 0.03 | ≦ 0.03 | ≦ 0.25 | 3.8~4.5 | ≦ 0.25 | 17~19 | 0.8~1.2 | ≦ 269 | ≧ 64 | ||
0.73~0.83 | ≦ 0.4 | ≦ 0.4 | ≦ 0.03 | ≦ 0.03 | ≦ 0.25 | 3.8~4.5 | ≦ 0.25 | 17~19 | 4.5~5.5 | 0.8~1.2 | ≦ 269 | ≧ 64 | |
0.7~0.8 | 0.2~0.4 | 0.1~0.4 | ≦ 0.03 | ≦ 0.03 | ≦ 0.25 | 3.75~4.5 | 0.4~1 | ≦ 0.25 | 17.5~19 | 4.25~5.75 | 0.8~1.2 | ||
0.73~0.83 | 0.2~0.4 | 0.1~0.4 | ≦ 0.03 | ≦ 0.03 | ≦ 0.25 | 3.75~4.5 | 0.4~1 | 17.5~19 | 4.25~5.75 | 0.8~1.2 | ≦ 269 | ≧ 63 | |
0.75~0.83 | ≦ 0.45 | ≦ 0.04 | ≦ 0.03 | ≦ 0.03 | 3.8~4.5 | 0.5~0.8 | 17.5~18.5 | 4.5~5.5 | 1.4~1.7 | 240~300 | ≧ 64 | ||
0.73~0.83 | ≦ 0.4 | ≦ 0.4 | ≦ 0.03 | ≦ 0.03 | ≦ 0.25 | 3.8~4.5 | ≦ 0.25 | 17~19 | 9~11 | 1~1.5 | ≦ 285 | ≧ 64 | |
0.73~0.83 | ≦ 0.4 | ≦ 0.4 | ≦ 0.03 | ≦ 0.03 | ≦ 0.25 | 3.8~4.5 | ≦ 0.25 | 17~19 | 9~11 | 1~1.5 | ≦ 285 | ≧ 64 | |
0.75~0.85 | 0.2~0.4 | 0.2~0.4 | ≦ 0.03 | ≦ 0.03 | 3.75~5 | 0.5~1.25 | 17.5~19 | 7~9.5 | 1.8~2.4 | ≦ 285 | ≧ 63 | ||
0.75~0.85 | 0.2~0.4 | 0.2~0.4 | ≦ 0.03 | ≦ 0.03 | 3.75~5 | 0.5~1.25 | 17.5~19 | 7~9.5 | 1.8~2.4 | ≦ 285 | ≧ 63 | ||
0.72~0.8 | ≦ 0.45 | ≦ 0.4 | ≦ 0.03 | ≦ 0.03 | 3.8~4.5 | 0.5~0.8 | 17.5~18.5 | 9~10 | 1.4~1.7 | 240~300 | ≧ 64 | ||
1.45~1.6 | ≦ 0.45 | ≦ 0.4 | ≦ 0.03 | ≦ 0.03 | ≦ 0.25 | 3.8~4.5 | ≦ 0.25 | 11.5~13.5 | 4.2~5.2 | 4.2~5.2 | ≦ 285 | ≧ 64 | |
1.45~1.6 | ≦ 0.45 | ≦ 0.4 | ≦ 0.03 | ≦ 0.03 | ≦ 0.25 | 3.8~4.5 | ≦ 0.25 | 11.5~13.5 | 4.2~5.2 | 4.2~5.2 | ≦ 285 | ≧ 64 | |
1.5~1.6 | ≦ 0.4 | 0.15~0.4 | ≦ 0.03 | ≦ 0.03 | ≦ 0.25 | 3.75~5 | ≦ 1 | ≦ 0.25 | 11.75~13 | 4.75~5.25 | 4.5~5.25 | ≦ 277 | ≧ 65 |
1.5~1.6 | 0.15~0.4 | 0.15~0.4 | ≦ 0.03 | ≦ 0.03 | 3.75~5 | ≦ 1 | 11.75~13 | 4.75~5.25 | 4.5~5.25 | ≦ 277 | ≧ 65 | ||
1.3~1.45 | ≦ 0.45 | ≦ 0.4 | ≦ 0.03 | ≦ 0.03 | 3.8~4.5 | 0.7~1 | 11.5~12.5 | 4.5~5 | 3.5~4 | 240~300 | ≧ 65 | ||
1.3~1.45 | ≦ 0.45 | ≦ 0.4 | ≦ 0.03 | ≦ 0.03 | 3.8~4.5 | 0.7~1 | 11.5~12.5 | 4.5~5 | 3.5~4 | 240~300 | ≧ 65 | ||
0.8~0.9 | ≦ 0.45 | ≦ 0.4 | ≦ 0.03 | ≦ 0.03 | ≦ 0.25 | 3.8~4.5 | 4.7~5.2 | ≦ 0.25 | 5.9~6.7 | 1.7~2.1 | ≦ 262 | ≧ 64 | |
0.8~0.9 | ≦ 0.45 | ≦ 0.4 | ≦ 0.03 | ≦ 0.03 | ≦ 0.25 | 3.8~4.5 | 4.5~5.5 | ≦ 0.25 | 5.9~6.7 | 1.7~2.1 | ≦ 262 | ≧ 64 | |
0.78~0.88 | 0.2~0.4 | 0.15~0.4 | ≦ 0.03 | ≦ 0.03 | ≦ 0.25 | 3.8~4.4 | 4.5~5.5 | 5.5~6.75 | 1.75~2.2 | ≦ 255 | ≧ 63 | ||
0.78~0.88 | 0.2~0.45 | 0.15~0.4 | ≦ 0.03 | ≦ 0.03 | 3.75~4.5 | 4.75~5.5 | 5.5~6.75 | 1.75~2.2 | |||||
0.86~0.94 | ≦ 0.45 | ≦ 0.4 | ≦ 0.03 | ≦ 0.03 | 3.8~4.5 | 4.7~5.2 | 6~6.7 | 1.7~2 | 240~300 | ≧ 64 | |||
1~1.1 | ≦ 0.45 | ≦ 0.4 | ≦ 0.03 | ≦ 0.03 | ≦ 0.25 | 3.8~4.5 | 5.5~6.7 | ≦ 0.25 | 5.5~6.7 | 2.3~2.6 | ≦ 262 | ≧ 64 | |
1~1.1 | ≦ 0.45 | ≦ 0.4 | ≦ 0.03 | ≦ 0.03 | ≦ 0.25 | 3.8~4.5 | 5.5~6.7 | ≦ 0.25 | 5.5~6.7 | 2.3~2.6 | ≦ 262 | ≧ 64 | |
1~1.1 | ≦ 0.45 | 0.15~0.4 | ≦ 0.03 | ≦ 0.03 | 0.2~0.45 | 3.75~4.5 | 4.75~6.5 | 5.5~6.75 | 2.25~2.75 | ≦ 255 | ≧ 65 |