Patent ID: 8372220
Filing Date: 2013-02-12
Classification: B21J,C22C,C22F

Abstract:
1. An aluminum alloy forging comprising an aluminum alloy comprising aluminum and, by mass, Mg: 0.6 to 1.0%, Si: 0.8 to 1.4%, Mn: 0.4 to 1.0%, Fe: 0.05 to 0.35%, Zn: 0.1% or below, Cu: 0.2% or below, Cr: 0.35% or below, Zr: 0.25% or below, Ti: 0.01 to 0.1%, and inevitable impurities, and having a hydrogen gas concentration of 0.25 ml/100 g of Al or below, wherein an area ratio of Mg