Composition and performance are similar to QAl10-4-4.

Cu:left part;Sn:≤0.20;Pb:≤0.050;P:≤0.10;Ni:5.00-6.50;Fe:5.00-6.50;Mn:≤0.50;Si:≤0.20;Zn:≤0.60;Al:≤10.0-11.50.Notice:total impurity≤1.5