Al—Mg—Si-based, casting aluminum alloy with excellent yield strength and cast member made thereof
AssigneeHitachi Metals, Ltd.
InventorsHideki Yamaura, Hidetsuna Watanabe
Life of this patent
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Abstract
A Al—Mg—Si-based, casting aluminum alloy comprising by mass 4-6% of Mg, 3.1-4.5% of Si, 0.5-1% of Mn, 0.1-0.3% of Cr, and 0.1-0.4% of Cu, the balance being Al and inevitable impurities.
Claims10
A cast member made of an Al—Mg—Si-based, casting aluminum alloy having large elongation and high yield strength comprising by mass, 4-6% of Mg, 3.1-4.5% of Si, 0.5-1% of Mn, 0.1-0.3% of Cr, and 0.1-0.4% of Cu, the balance being Al and inevitable impurities, wherein the total amount of Cr and Cu is 0.2-0.7%, and wherein said elongation and said yield strength are respectively 3% or more and 220 MPa or more in an as-cast state.
A cast member made of an Al—Mg—Si-based, casting aluminum alloy having large elongation and high yield strength consisting of by mass, 4-6% of Mg, 3.1-4.5% of Si, 0.5-1% of Mn, 0.1-0.3% of Cr, and 0.1-0.4% of Cu, the balance being Al and inevitable impurities, wherein the total amount of Cr and Cu is 0.2-0.7%, and wherein said elongation and said yield strength are respectively 3% or more and 220 MPa or more in an as-cast state.
A cast member made of an Al—Mg—Si-based casting aluminum alloy having large elongation and high yield strength consisting of by mass, 4-6% of Mg, 3.1-4 5% of Si, 0.5-1% of Mn, 0.1-0.3% of Cr, 0.1-0.4% of Cu, and 0.05-0.3% of Ti, the balance being Al and inevitable impurities, wherein the total amount of Cr and Cu is 0.2-0.7%, and wherein said elongation and said yield strength are respectively 3% or more and 220 MPa or more in an as-cast state.
Dependencies are inferred from the claim text.