** 號 | 化學成分(質量分數)(%) | ||||||||
C | Si | Mn | P | S | Ni | Cr | M0 | 其他 | |
7Crl7 | O.60~ O.75 | ≤1.00 | ≤1.00 | ≤0.035 | ≤O.030 | ③ | 16.00~18.00 | ① | |
8Cr17 | 0.75~ O.95 | ≤1.00 | ≤1.00 | ≤O.035 | ≤O.030 | ③ | 16.00~18.00 | ④ | |
9Crl8 | 0.90~ 1.00 | ≤O.80 | ≤0.80 | ≤O.035 | ≤0.030 | ③ | 17.00~19.00 | ④ |
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