牌號化學成分 (質量分數)(%)SiFeCuMnMgCrZnTiZr其他Al(硅)(鐵)(銅)(錳)(鎂)(鉻)(鋅)(鈦)(鋯)單個合計(鋁)70500.120.152.0~2.60.11.9~2.60.045.7~6.7—0.060.08~0.150.050.15餘量70750.40.51.2~2.00.32.1~2.90.18~0.285
品牌: 規格: 產地: 材質:
牌號化學成分 (質量分數)(%)SiFeCuMnMgCrZnTiZr其他Al(硅)(鐵)(銅)(錳)(鎂)(鉻)(鋅)(鈦)(鋯)單個合計(鋁)70500.120.152.0~2.60.11.9~2.60.045.7~6.7—0.060.08~0.150.050.15餘量70750.40.51.2~2.00.32.1~2.90.18~0.285
品牌: 規格: 產地: 材質:
牌號化學成分 (質量分數)(%)SiFeCuMnMgCrZnTiZr其他Al(硅)(鐵)(銅)(錳)(鎂)(鉻)(鋅)(鈦)(鋯)單個合計(鋁)7A030.20.21.8~2.40.11.2~1.60.056.0~6.7—0.02~0.08—0.050.1餘量7A040.50.51.4~2.00.20~0.61.8~2.80.10~0.
品牌: 規格: 產地: 材質: