What's the difference between selling die-cast zinc scrap and zinc-coated (galvanized) steel scrap?
Short answer: These are fundamentally different materials priced completely differently — die-cast zinc (often called "pot metal" or zamak) is a solid zinc alloy component worth its own dedicated zinc scrap price, while galvanized steel is mostly steel with only a thin zinc coating, priced as steel scrap with a deduction for the zinc, not as zinc scrap at all.
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List Free →Why these get confused
Both involve zinc, and both are commonly encountered by scrap sellers, which leads to a natural assumption they’re priced similarly — but the underlying material composition is completely different, and that’s what actually drives price.
Die-cast zinc is a solid zinc alloy
Components like carburetor bodies, old door handles, small engine parts, and many decorative or mechanical fittings are cast from zinc alloys (commonly called zamak) that are overwhelmingly zinc by weight — this genuinely trades as zinc scrap.
Galvanized steel is steel with a zinc surface
Galvanized roofing, fencing, and structural steel is fundamentally steel with a thin protective zinc coating — the underlying material is priced as steel, with the zinc coating actually working against the price by requiring extra processing, not adding zinc scrap value.
How ScrapTrade Makes This Easier
ScrapTrade lets you list die-cast zinc and galvanized steel as separate categories, so buyers price each correctly instead of lumping them into one generic “has zinc in it” listing.
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