When dealing with sheet metal, tolerances cannot be a single static number. Because metal springs back after being bent and expands under heat, tolerances scale proportionally based on the nominal size of the dimension and the thickness of the metal plate. Linear and Step Dimensions
MS 81:2021, Specification for Fire Hydrants (Second Revision) MS 81:1991 Primary Use Ms81-2021 Standard Pdf
A: The MS81-2021 standard is a Malaysian standard that provides guidelines for the preparation, presentation, and interpretation of statistical data. When dealing with sheet metal, tolerances cannot be