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High Strength Aluminum Alloy Extruded Material With Excellent Corrosion Resistance And Favorable Quenching Properties And Manufacturing Method Therefor
High Strength Aluminum Alloy Extruded Material With Excellent Corrosion Resistance And Favorable Quenching Properties And Manufacturing Method Therefor
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机译:具有优异的耐腐蚀性和良好的淬火性能的高强度铝合金挤压材料及其制造方法
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摘要
An aluminum alloy extruded material that exhibits high strength by air cooling immediately after extrusion processing and excellent stress corrosion cracking resistance, and a method for manufacturing the same are disclosed. The material includes, by mass: 6.0 to 8.0% of Zn, 1.50 to 2.70% of Mg, 0.20 to 1.50% of Cu, 0.005 to 0.05% of Ti, 0.10 to 0.25% of Zr, 0.3% or less of Mn, 0.05% or less of Cr, 0.25% or less of Sr, and 0.10 to 0.50% in total among Zr, Mn, Cr and Sr, with the balance being Al and unavoidable impurities.
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