铝合金 挤压宽板型材（7150-T77511）6.4Zn 2.4Mg 2.2Cu 0.12Zr 固溶热处理 应力消除 矫直和过时效

This specification covers an aluminum alloy in the form of extruded wide panel profiles (shapes) and rod and bars 0.500 to 1.000 inch (12.7 to 25.4 mm), inclusive, in thickness produced with cross-sectional area of 14 to 30 square inches (90 to 194 cm2x) from circumscribing circle diameters (see 2.4.1) of 14 to 22 inches (356 to 559 mm) (see 8.7).