GB/T 239.1-2012 in English

《GB/T 239.1-2012金属材料 线材 第1部分：单向扭转试验方法》由TC183（全国钢标准化技术委员会）归口，TC183SC4（全国钢标准化技术委员会力学及工艺性能试验方法分会）执行，主管部门为中国钢铁工业协会。

1 Scope

This part specifies a method for determining the ability of metallic wire of diameter (or characteristic dimension) 0.1mm to 14mm inclusive to undergo plastic deformation during simple torsion in one direction. Through negotiation between interested parties, simple torsion test of metallic wire products in other size may also be made reference to this part.

1 Scope
This part specifies a method for determining the ability of metallic wire of diameter (or characteristic dimension) 0.1mm to 14mm inclusive to undergo plastic deformation during simple torsion in one direction. Through negotiation between interested parties, simple torsion test of metallic wire products in other size may also be made reference to this part.
2 Symbols and Designations
The symbols and designations used in the simple torsion test of wires are shown in Figure 1 and listed in Table 1.