Patent ID: 9175372
Filing Date: 2015-11-03
Classification: B21C,B21K,C22C,C22F

Abstract:
1. An aluminum alloy forged material, comprising: Si: 0.7-1.5 mass %; Fe: 0.1-0.5 mass %; Mg: 0.6-1.2 mass %; Ti: 0.01-0.1 mass %; Mn: 0.3-1.0 mass %; at least one element selected from the group consisting of Cr: 0.1-0.4 mass % and Zr: 0.01-0.2 mass %; Cu: 0.1 mass % or less; Zn: 0.05 mass % or less; a hydrogen amount: 0.25 ml/100 g-Al or less; and Al, wherein a depth of recrystallization does not exceed 5 mm from the aluminum alloy forged material's surface.