WEAR-RESISTANT ALUMINUM ALLOY EXTRUDED MATERIAL HAVING EXCELLENT FATIGUE STRENGTH AND CUTTING PROPERTIES

摘要

[Object] To provide a wear-resistant aluminum alloy extruded material that exhibits excellent fatigue strength and excellent machinability. [Solution] A wear-resistant aluminum alloy extruded material that exhibits excellent fatigue strength and machinability is formed using an aluminum alloy that includes 3.0 to 8.0 mass% of Si, 0.1 to 0.5 mass% of Mg, 0.01 to 0.5 mass% of Cu, 0.1 to 0.5 mass% of Zr, 0.4 to 0.9 mass% of Fe, 0.01 to 0.5 mass% of Mn, 0.01 to 0.5 mass% of Cr, and 0.01 to 0.1 mass% of Ti, with the balance being Al and unavoidable impurities.