** 號 | 化學成分(質量分數)(%) | ||||||||
C | Si | Mn | P | S | Ni | Cr | M0 | ||
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 | |
llCrl7 | O.95~ 1.20 | ≤1.00 | ≤1.00 | ≤O.035 | ≤0.030 | ③ | 16.00~18.00 | ④ | |
YllCrl7 | O.95~ 1.20 | ≤1.00 | ≤1.25 | ≤0.060 | ≥O.15 | ③ | 16.00~18.00 | ④ | |
9Crl8Mo | O.95~ 1.10 | ≤0.80 | ≤O.80 | ≤O.035 | ≤0.030 | ③ | 16.00~18.00 | 0.40~0.70 | |
9Crl8MoV | O.85~ 0.95 | ≤O.80 | ≤0.80 | ≤O.035 | ≤O.030 | ③ | 17.00~19.00 | 1.00~ 1.30 |