ISO 9649-1990 金属材料 线材 反复扭转试验

标准号：ISO 9649-1990
中文标准名称：金属材料 线材 反复扭转试验
英文标准名称：Metallic materials; wire; reverse torsion test
标准类型：H23
发布日期：1999/12/31 12:00:00
实施日期：1990/2/1 12:00:00
中国标准分类号：H23
国际标准分类号：77.040.10
适用范围：Specifies a method for determining the ability of wire of diameter 0,3 mm to 10,0 mm inclusive to undergo plastic deformation during reverse torsion. This test is used for detecting surface and internal defects in wires. Gives symbols and designations, principle, testing machine, test piece, procedure and test report.