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| C(%) | Si(%) | Mn(%) | P(%) | S(%) | Cr(%) | Ni(%) | Cu(%) | C(%)(%) 0.6-0.7 | Si(%)(%) ≦0.35 | 0.6-0.7 | P(%)(%) ≦0.03 | S(%)(%) ≦0.03 | 0.6-0.7 | 0.6-0.7 | 0.6-0.7 | 0.6-0.7 | 0.6-0.7 |
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Carbon Tool Steels
| Steel Type | Country Code | C(%) | V(%) | Si(%) | Mn(%) | P(%) | S(%) | Cr(%) | W(%) | SK7 | CNS | 0.6-0.7 | ≦0.35 | ≦0.5 | ≦0.03 | ≦0.03 | ≦0.2 | T7 | GB | 0.65-0.74 | ≦0.35 | ≦0.4 | ≦0.035 | ≦0.03 | SK7 | JIS | 0.6-0.7 | 0.15-0.35 | 0.15-0.5 | ≦0.03 | ≦0.03 | ≦0.3 | W1-7 | ASTM | 0.7-0.8 | ≦0.1 | 0.1-0.4 | 0.1-0.4 | ≦0.025 | ≦0.025 | ≦0.15 | ≦0.15 | C70W2 | DIN | 0.65-0.74 | 0.1-0.3 | 0.10-0.35 | ≦0.03 | ≦0.03 |
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| T13A | T12 | T10 | C125W1 | C105W1 | SK7 | T8A | W1C-8 | W2C-91/2 | SK7 | W1A-10 | C80W2 | H4202 | C85W2 | 5153 | W1A-91/2 | W1C-91/2 | W1-7 | W1-7 |
| St14-05 | SB410 | C70W2 | C4430P/C4430R | SMA490BP | NCF750B | C2680P/C2680R | SCPL31 | SQV3A | MDC1B |