牌 號 | 朝展化學(xué)成分(質(zhì)量分數(shù))(%) | ||||||||
C | Si | Mn | P | S | Ni | Cr | M0 | 其他 | |
沉淀硬化型 | |||||||||
≤O.07 | ≤1.00 | ≤1.00 | ≤0.035 | ≤O.030 | 3.00~5.00 | 15.50~17.50 | Cu3.00~5.00 | Nb0.15~O.45 | |
≤0.09 | ≤I.00 | ≤1.00 | ≤O.035 | ≤0.030 | 6.50~7.75 | 16.00~18.00 | Cu≤O.50 | A10.75~1.50 | |
≤0.09 | ≤1.00 | ≤1.00 | ≤O.035 | ≤O.030 | 6.50~7.50 | 14.00~16.00 | 2.00~3.00 | A10.75~1.50 |