CONTINUOUSLY CAST BOLT MADE OF AN ALUMINUM-BASED ALLOY, EXTRUDED PROFILE, AND METHOD FOR PRODUCING SAME
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United States of America
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Issued Date -
Jun 30, 2022
app pub date -
Feb 5, 2020
filing date -
Feb 5, 2020
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Abstract
The invention relates to a continuously cast bolt made of an aluminum-based alloy for an extruded profile that has a yield strength of greater than 260 MPa, preferably greater than 280 MPa, in particular greater than 300 MPa. According to the invention, it is provided that the aluminum-based alloy contains, in percentage by weight, greater than 0.0% to 0.40% iron, 0.40% to 1.2% magnesium, 0.60% to 1.1% silicon, greater than 0.0% to 0.35% copper, greater than 0.0% to 0.35% chromium, 0.40% to 0.95% manganese, up to 0.2% zinc, optionally 0.005% to 0.15% titanium and/or 0.005% to 0.15% titanium diboride, and a remainder of aluminum and production-related impurities, wherein a secondary dendrite arm spacing of the microstructure is less than 100 μm. The invention furthermore relates to an extruded profile created from a continuously cast bolt of this type, and to a method for producing an extruded profile.
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