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Chinese Standard: GB/T 242-2007

Metal materials—Tube—Drift-expending test

IDT  ISO 8493:1998

全国钢标准化技术委员会

本标准规定了测定圆形横截面金属管塑性变形能力的扩口试验方法。
本标准适用于外径不超过150 mm(有色金属管外径不超过100 mm)、管壁厚度不超过10 mm的金属管。本标准适用金属管的外径和壁厚范围可以在相关的产品标准中做更详细的规定。

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