Standard No.:	GB/T 239-1999
English Name:	Metallic materials wire torsion test
Chinese Name:	金属线材扭转试验方法
Chinese Classification:	H23    Metal processing property test method
Professional Classification:	GB    National Standard
ICS Classification:	77.040.10 77.040.10    Mechanical testing of metals 77.040.10
Issued by:	AQSIQ
Issued on:	1999-11-1
Implemented on:	2000-8-1
Status:	superseded
Superseded by:	GB/T 239.1-2012 Metallic materials - Wire - Part 1: Simple torsion test GB/T 239.2-2012 Metallic materials - Wire - Part 2: Reverse torsion test
Superseded on:	2013-2-1
Superseding:	GB/T 239-1984 Metallic materials-wire-torsion test GB/T 239.2-2012 Metallic materials - Wire - Part 2: Reverse torsion test
Language:	English
File Format:	PDF
Word Count:	2000 words
Price(USD):	224.0
Delivery:	via email in 1~3 business day

本标准规定了金属线材扭转试验方法的原理、符号、试验设备、试样、试验程序和试验报告。本标准适用于测定直径（或特征尺寸）为0.3～10.0 mm的金属线材在单向或双向扭转中承受塑性变形的能力及显示线材的表面和内部缺陷。