What is the major alloy group in a 5000 series aluminum?

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Multiple Choice

What is the major alloy group in a 5000 series aluminum?

Explanation:
The main concept: aluminum alloy groups are named for the element added as the primary alloying element. In the 5000 series, magnesium is the key element. That means these alloys are aluminum-magnesium alloys, chosen for good corrosion resistance and strength gained mainly through work hardening rather than heat treatment. Silicon, by contrast, defines the 6000 series (Al-Mg-Si) and is not the dominant element in the 5000 series. Titanium and nickel do appear in some specialty alloys, but they do not define the standard 5000-series composition. So magnesium is the core alloying element for this series.

The main concept: aluminum alloy groups are named for the element added as the primary alloying element. In the 5000 series, magnesium is the key element. That means these alloys are aluminum-magnesium alloys, chosen for good corrosion resistance and strength gained mainly through work hardening rather than heat treatment. Silicon, by contrast, defines the 6000 series (Al-Mg-Si) and is not the dominant element in the 5000 series. Titanium and nickel do appear in some specialty alloys, but they do not define the standard 5000-series composition. So magnesium is the core alloying element for this series.

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