○ JIS規格之化學成份 Chemical composition of the materials specified in JIS
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						分類  | 
				
					 
						種類之記號  | 
				
					 化學成份%Chemical Composition  | 
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					 C  | 
				
					 Si  | 
				
					 Mn  | 
				
					 P  | 
				
					 S  | 
				
					 Cr  | 
				
					 Mo  | 
				
					 W  | 
				
					 V  | 
				
					 Co  | 
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						W系高速度工具鋼鋼材  | 
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					 SKH2  | 
				
					 0.73~0.83  | 
				
					 ≦0.4  | 
				
					 ≦0.4  | 
				
					 ≦0.030  | 
				
					 ≦0.030  | 
				
					 3.80~4.50  | 
				
					 ─  | 
				
					 17.00~19.00  | 
				
					 0.80~1.20  | 
				
					 ─  | 
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| 
					 SKH3  | 
				
					 0.73~0.83  | 
				
					 ≦0.4  | 
				
					 ≦0.4  | 
				
					 ≦0.030  | 
				
					 ≦0.030  | 
				
					 3.80~4.50  | 
				
					 ─  | 
				
					 17.00~19.00  | 
				
					 0.80~1.20  | 
				
					 4.50~5.50  | 
			|
| 
					 SKH4  | 
				
					 0.73~0.83  | 
				
					 ≦0.4  | 
				
					 ≦0.4  | 
				
					 ≦0.030  | 
				
					 ≦0.030  | 
				
					 3.80~4.50  | 
				
					 ─  | 
				
					 17.00~19.00  | 
				
					 1.00~1.50  | 
				
					 9.00~11.00  | 
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| 
					 SKH10  | 
				
					 1.45~1.60  | 
				
					 ≦0.4  | 
				
					 ≦0.4  | 
				
					 ≦0.030  | 
				
					 ≦0.030  | 
				
					 3.80~4.50  | 
				
					 ─  | 
				
					 11.50~13.50  | 
				
					 4.20~5.20  | 
				
					 4.20~5.20  | 
			|
| 
					 
						Mo系高速度工具鋼鋼材  | 
				
					 SKH51  | 
				
					 0.80~0.90  | 
				
					 ≦0.4  | 
				
					 ≦0.4  | 
				
					 ≦0.030  | 
				
					 ≦0.030  | 
				
					 3.80~4.50  | 
				
					 4.50~5.50  | 
				
					 5.50~6.70  | 
				
					 1.60~2.20  | 
				
					 ─  | 
			
| 
					 SKH52  | 
				
					 1.00~1.10  | 
				
					 ≦0.4  | 
				
					 ≦0.4  | 
				
					 ≦0.030  | 
				
					 ≦0.030  | 
				
					 3.80~4.50  | 
				
					 4.80~6.20  | 
				
					 5.50~6.70  | 
				
					 2.30~2.80  | 
				
					 ─  | 
			|
| 
					 SKH55  | 
				
					 0.85~0.95  | 
				
					 ≦0.4  | 
				
					 ≦0.4  | 
				
					 ≦0.030  | 
				
					 ≦0.030  | 
				
					 3.80~4.50  | 
				
					 4.60~5.30  | 
				
					 5.70~6.70  | 
				
					 1.70~2.20  | 
				
					 4.50~5.50  | 
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| 
					 SKH56  | 
				
					 0.85~0.95  | 
				
					 ≦0.4  | 
				
					 ≦0.4  | 
				
					 ≦0.030  | 
				
					 ≦0.030  | 
				
					 3.80~4.50  | 
				
					 4.60~5.30  | 
				
					 5.70~6.70  | 
				
					 1.70~2.20  | 
				
					 7.00~9.00  | 
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| 
					 SKH58  | 
				
					 0.95~1.05  | 
				
					 ≦0.5  | 
				
					 ≦0.4  | 
				
					 ≦0.030  | 
				
					 ≦0.030  | 
				
					 3.50~4.50  | 
				
					 8.20~9.20  | 
				
					 1.50~2.10  | 
				
					 1.70~2.20  | 
				
					 ─  | 
			|
| 
					 SKH59  | 
				
					 1.00~1.15  | 
				
					 ≦0.5  | 
				
					 ≦0.4  | 
				
					 ≦0.030  | 
				
					 ≦0.030  | 
				
					 3.50~4.50  | 
				
					 9.00~10.00  | 
				
					 1.20~1.90  | 
				
					 0.90~1.40  | 
				
					 7.50~8.50  | 
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| 
					 V系高速度工具鋼鋼材 V typeHSS  | 
				
					 SKH53  | 
				
					 1.10~1.25  | 
				
					 ≦0.4  | 
				
					 ≦0.4  | 
				
					 ≦0.030  | 
				
					 ≦0.030  | 
				
					 3.80~4.50  | 
				
					 4.60~5.30  | 
				
					 5.70~6.70  | 
				
					 2.80~3.30  | 
				
					 ─  | 
			
| 
					 SKH54  | 
				
					 1.25~1.40  | 
				
					 ≦0.4  | 
				
					 ≦0.4  | 
				
					 ≦0.030  | 
				
					 ≦0.030  | 
				
					 3.80~4.50  | 
				
					 4.50~5.50  | 
				
					 5.30~6.50  | 
				
					 3.90~4.50  | 
				
					 ─  | 
			|
| 
					 SKH57  | 
				
					 1.20~1.35  | 
				
					 ≦0.4  | 
				
					 ≦0.4  | 
				
					 ≦0.030  | 
				
					 ≦0.030  | 
				
					 3.80~4.50  | 
				
					 3.00~4.00  | 
				
					 9.00~11.00  | 
				
					 3.00~3.70  | 
				
					 9.00~11.00  | 
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| 
					 
						分類  | 
				
					 
						種類之記號  | 
				
					 
						用途  | 
				
					 
						其他規格記號的對照  | 
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| 
					 
						相當  | 
				
					 
						相當  | 
				
					 
						相當  | 
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						W系高速度工具鋼鋼材  | 
				
					 SKH2  | 
				
					 一般切削用及其他各種工具 Tools for general cutting and other kinds of tools.  | 
				
					 T1  | 
				
					 S18-0-1  | 
				
					 S1 (HS18-0-1)  | 
				|
| 
					 SKH3  | 
				
					 高速重切削用及其他各種工具 Tools for high speed heavy cutting and other kinds of tools.  | 
				
					 T4  | 
				
					 S18-1-2-5  | 
				
					 S7(HS18-1-1-5)  | 
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					 SKH4  | 
				
					 難削材切削用及其他各種工具 Tools for cutting hard-to-machine materials and other kinds of tools.  | 
				
					 T5  | 
				
					 S18-1-2-10  | 
				
					 S6(HS18-0-1-10)  | 
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| 
					 SKH10  | 
				
					 高難削材切削用及其他各種工具 Tools for cutting ultra hard-to-machine materials and other kinds of tools.  | 
				
					 T15  | 
				
					 ─  | 
				
					 S9 (HS12-1-5-5)  | 
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| 
					 
						Mo系、V系
                                        高速度
                                        工具鋼鋼材  | 
				
					 SKH51  | 
				
					 需要韌性之一般切削用及其他各種工具 General cutting tools from which toughness is particularly required and other kinds of tools.  | 
				
					 M2  | 
				
					 S6-5-2  | 
				
					 S4 (HS6-5-2)  | 
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| 
					 SKH52  | 
				
					 
						  | 
				
					 M3-1  | 
				
					 ─  | 
				
					 ─  | 
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| 
					 SKH53  | 
				
					 
						需更具韌性之高硬度材切削及其他各種工具  | 
				
					 M3-2  | 
				
					 S6-5-3  | 
				
					 S5 (HS6-5-3)  | 
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| 
					 SKH54  | 
				
					 
						  | 
				
					 M4  | 
				
					 ─  | 
				
					 ─  | 
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| 
					 SKH55  | 
				
					 
						  | 
				
					 M35  | 
				
					 S6-5-2-5  | 
				
					 S8 (HS6-5-2-5)  | 
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| 
					 SKH56  | 
				
					 需要具韌性之高速重切削用及其他各種工具 High speed cutting tools from which comparatively high toughness is required and other kinds of tools.  | 
				
					 M36  | 
				
					 ─  | 
				
					 ─  | 
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| 
					 SKH57  | 
				
					 
						  | 
				
					 ─  | 
				
					 S10-4-3-10  | 
				
					 S10 (HS10-4-3-10)  | 
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| 
					 SKH58  | 
				
					 需要韌性之一般切削用及其他各種工具 General cutting tools from which toughness is particularly required and other kinds of tools.  | 
				
					 M7  | 
				
					 S2-9-2  | 
				
					 S2 (HS2-9-2)  | 
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| 
					 SKH59  | 
				
					 需要具韌性之高速重切削用及其他各種工具 High speed heavy cutting tools from which comparatively high toughness is required and other kinds of tools.  | 
				
					 M42  | 
				
					 S2-10-1-8  | 
				
					 S11(HS2-9-1-8)  | 
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✽HSSE:鈷(Co)含量4.5%以上或釩(V)含量2.6%以上之高速度工具鋼標示之。
HSSE:High-speed tool steel that contains more than 4.5% of Cobalt or 2.6% of Vanadium.
✽HSS:鈷(Co)含量4.5%以上或釩(V)含量2.6%以上之高速度工具鋼標示之。
HSS:High-speed tool steel that contains more than 4.5% of Cobalt or 2.6% of Vanadium.