铬青铜QCR0.5CR0.4-1.1,FE≤0.1,NI≤0.05,CU余量,杂质总和≤0.5QCr0.5-0.2-0.1AL0.1-0.25,MG0.1-0.25,CR0.4-1.0,CU余量,杂质总和≤0.5QCR0.6-0.4-0.05CR0.4-0.8,锆0.3-0.6,MG0.04-0.08,FE≤0.05,SI≤0.05,P≤0.01,CU余量,杂质总和≤0.5QCR1CR0.6-1.2,SI≤0.10,FE≤0.10,PB≤0.05,CU余量)