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Low-doped high-strength silumin Al9Si-Q without beryllium

Экономнолегированный высокопрочный безбериллиевый силумин Al9Si-Q
Low-doped high-strength silumin Al9Si-Q without beryllium has the tensile strength for metal mold castings above 310 MPa, for temporary mold castings - above 280 MPa. Al9Si-Q solidus temperature should be below 550 ° C, and liquidus temperature not higher than 605 ° C. Al9Si-Q structure characterized in that all iron present in the skeletal inclusion of phase Al15(Fe, Mn)3Si2, and magnesium bonded to the secondary phase Al5Cu2Mg8Si6 (Q'). Exception of beryllium from alloy composition reduces costs, improves environmental friendliness.


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