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Why Do Galvanized Steel Gate Hinges Snap? Biaxial Shear Physics Reference Standard: ASTM A653 / A653M – Standard Specification for Steel Sheet, Zinc-Coated (Galvanized) Short Answer Galvanized gate hinges typically fail due to non-uniform biaxial shear stress concentration at the pivot nodes and tribo-corrosion cycles that strip protective zinc-oxide layers. By engineering 14-Gauge steel with … 더 보기