| 摘要 |
PROBLEM TO BE SOLVED: To provide an Al-Zn-Mg alloy for casting and forging with high strength, advantageous for improving stress corrosion cracking(SCC) resistance and a manufacturing cost, Al-Zn-Mg cast and forged articles, and a method for manufacturing the Al-Zn-Mg articles. SOLUTION: The Al-Zn-Mg alloy for casting and forging superior in casting properties and forging properties includes, by mass%, 3-5% zinc, 1-3% magnesium, 0.20-1.0% copper 0.15-0.30% titanium, 0.10-0.40% zirconium, 0.30% or less silicon, 0.50% or less iron, and the balance aluminum with unavoidable impurities.
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