GB/T 5027-2016
AbolishedMetallic materials—Sheet and strip—Determination of plastic strain ratio
金属材料 薄板和薄带 塑性应变比（r值）的测定
Application Summary AI generated
This standard specifies the test method for determining the plastic strain ratio (r-value) of metallic sheet and strip materials. It is applied in the automotive, aerospace, and appliance manufacturing industries to evaluate the drawability and formability of materials like steel and aluminum alloys during sheet metal forming processes. The standard is used in quality control and material selection contexts to predict how a material will behave under deep drawing or stamping operations.
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