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Question:

What is the black powder on the surface of magnesium ingot AM50A?

What is the black powder on the surface of magnesium ingot AM50A?

Answer:

These are commonly used in the die casting magnesium alloy brand.
The first is the alloy composition is different: AM50, AM60 is Mg-Al-Mn series, AZ91D is Mg-Al-Zn series.
AZ91D, the most widely used magnesium alloy, has high strength and excellent casting performance. It is used in motorcycles, computer parts, housings, and lids

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