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GB/T 4156-2020 English PDF (GBT4156-2020)

GB/T 4156-2020 English PDF (GBT4156-2020)

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GB/T 4156-2020: Metallic materials -- Sheet and strip -- Erichsen cupping test
This Standard specifies the method for determining the ability of metal sheets and strips to withstand plastic deformation during drawing forming by the Erichsen Cupping Test. This Standard is applicable to the determination of metal sheets and strips with a thickness of 0.1mm~2.0mm and a width of no less than 90mm. For thicker sheets and strips or those that only the narrower specimen may be taken, then use the mold with specified size; and the subscript shall be used when indicating the results. See Table 1.

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