7075 Aluminum Alloys High-Strength Properties: The Rigid Foundation for PCB Fixtures

7075 Aluminum Alloy (T6 temper), with its tensile strength of 540-570MPa and yield strength of 480-510MPa, is the core material for high-precision PCB fixtures. Its zinc-based strengthening phase (Zn-Mg-Cu) provides the structure with ultra-high rigidity, effectively resisting deformation caused by the high-frequency vibrations of SMT placement machines. Actual measurements show that compared to 6061 aluminum alloy, 7075 fixtures exhibit 42% less deformation under the same load and a 3-fold increase in lifespan, making them particularly suitable for high-pressure applications such as IC test sockets.