·膨胀合金的牌号和化学成分合金牌号化学成分(质量分数)(％)其他元素CSP≤4J06①0.050.020O.020≤0.25≤0.3041.5～42.55.5～6.3余量Al≤O.24J28O.120.0200.020≤1.00≤0.70≤O.5027.O～29.O余量N≤O.24J29O.03O.0200.020≤O.50≤0.3028.5～29.5≤O.216.8～17.8≤0.2≤O.2余量4lJ32O.05O.020O.020O.20～0.60≤O.2031.5～33.O3.2～4.2O.4～0.8余量4J33O.D5O.020O.020≤0.50≤0.3032.1～33.614.O～15.2余量4J34O.05O.020O.020≤0.50≤0.3028.5～29.519.5～20.5余量4J36O.050.0200.020O.20～0.60≤O.3035.O～37.O余量4J380.050.0200.020≤0.80≤O.2035.O～37.0O.10～O.25余量4J400.05O.020O.020≤O.25≤0.1532.4～33.47.0～8.0余量)