Chinese Standard: GB/T 239.2-2012

Metallic materials—Wire—Part 2:Reverse torsion test

MOD  ISO 9649:1990

全国钢标准化技术委员会(SAC/TC 183)

本部分规定了直径0.3 mm～10.0 mm的金属线材在双向扭转中经受塑性变形能力的方法，主要用来检测线材表面和内部缺陷。

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