Standard Number: YB/T 4731-2019(YB/T4731-2019)
Chinese:电工钢带（片）反复弯曲试验方法
English:Test Method for Repeated Bending of Electrical Steel Strip (Sheet)
Effective Date:2019-11-01
Standard Applicability:This standard specifies the principle of repeated bending test method of electrical steel strip (sheet), terms and definitions, symbols and descriptions, principle, test device, specimen, test procedures, test results and test reports. This standard applies to the use of Epstein specimens to repeated bending test method to evaluate the ductility of oriented and non-oriented electrical steel strip (sheet), the specimen for the unannealed state.
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