4xxx series are low ductile alloys, due to the high silicon content of these alloys, silicon is present in the form of intermetallic precipitates, but also as elemental silicon particles making the material brittle. 7xxx series are very strong "heat treatable" alloys; they can be strengthened through heat treatment based on the combination of zinc and magnesium.
Alloy : 4004 4104 4343 7072
Utility : composite sheet,composite foil
Phone: +86 18137889531
Add: 1103 No.14 Shangwu Outer Ring Rd, New District, Zhengzhou, China.