Originally Posted by
Screwedontight
A few things I am trying to learn more about.. Distinguishing the difference between cast aluminum & die cast aluminum. I have trouble seperaring the two.I know die cast is heavier.
Casting is a broad term that describes a variety of different methods; die casting is only one of these, although where aluminum is concerned it's one of the three most popular. Two other important approaches are called permanent mold casting and sand casting. While die casting delivers a high level of accuracy and a very consistent shape, sand casting is more versatile and is superior for objects with intricate patterns and designs. Perhaps you are associating the term die cast for Zinc which is more than twice the atomic weight of aluminum. Some yards may call Zinc Die Cast but that would be more of a slang term some don't separate the two and it all goes in the same bin. When you file test zinc it should be a dull grey.
Separate those items you are not sure of and ask questions, If you have a good yard they will teach you. Even to this day I some time have boards that I'm not sure if they would be considered a high end board and 9 out 10 times he adds them to the high end pile. I think that's because I'm not trying to sneak them in the bottom of the bucket. I just ask.
Hope this helps
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