AL-SI ALLOY FOR CASTING, AL-SI ALLOY CASTING AND AL-SI ALLOY CASTING JOINT

Abstract: provided is an al—si alloy for casting which is capable of imparting high yield strength to an al—si alloy casting in addition to being capable of effectively suppressing the occurrence of cracking when press-fitting a self-piercing rivet into an aluminum alloy casting. in addition, provided are: an al—si alloy casting which has high yield strength and effectively suppresses the occurrence of cracking when press-fitting a self-piercing rivet therein; and an al—si alloy casting joint in which said al—si alloy casting is the material to be joined. the al—si alloy for casting in the present invention is characterized by comprising si in the amount of 5.0-12.0 mass %, mn in the amount of 0.4-1.5 mass %, mg in the amount of 0.05-0.6 mass %, cr in the amount of 0.1-0.5 mass %, and fe in an amount greater than 0 and no greater than 0.6 mass %, with the remainder constituting al and inevitable impurities.

Inventor(s): Ryosuke INOUE, Tomohiro ISOBE, Hiroshi HORIKAWA

CPC Classification: C22C21/02 (ALLOYS (flints ; treatment of alloys , ))

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