| 摘要 |
In accordance with an exemplary embodiment, a high-strength brass alloy includes, by mass %, about 1.3% to about 2.3% of aluminum (Al), about 1.5% to about 3.0% of manganese (Mn), about 1% maximum of iron (Fe), about 1% maximum of nickel (Ni), about 0.4% maximum of tin (Sn), about 0.5% to about 2.0% of silicon (Si), about 57% to about 60% of copper (Cu), less than about 0.1% of lead (Pb), and the balance of zinc (Zn) and inevitable impurities, with the proviso that the ratio of Si/Mn is in the range of about 0.3 to about 0.7, and with the further proviso that the "zinc equivalent" content according to the following formula: ZnEq = Zn + Si*10 - Mn/2 + Al*5 is from about 51% to about 58%. |
