本文件采用ISO 5173:2009，其中规定了一种方法，用于对取自对接焊缝、带堆焊层的对接焊缝（细分为复合板焊缝和堆焊层焊缝）和无对接焊缝的堆焊层的试样进行横向根部、端面和侧面弯曲试验，以评估试样表面或附近的延展性和/或无缺陷。它还给出了试样的尺寸。此外，本文件规定了当基材和/或填充金属的物理和机械性能与弯曲有显著差异时，对非均质组件进行纵向根部和端面弯曲试验而非横向弯曲试验的方法。本文件适用于所有形式的产品中的金属材料，其焊接接头由任何熔焊工艺制成。

This document adopts ISO 5173:2009 which specifies a method for making transverse root, face and side bend tests on test specimens taken from butt welds, butt welds with cladding (subdivided into welds in clad plates and clad welds) and cladding without butt welds, in order to assess ductility and/or absence of imperfections on or near the surface of the test specimen. It also gives the dimensions of the test specimen.In addition, this document specifies a method for making longitudinal root and face bend tests to be used instead of transverse bend tests for heterogeneous assemblies when base materials and/or filler metal have a significant difference in their physical and mechanical properties in relation to bending.This document applies to metallic materials in all forms of product with welded joints made by any fusion arc welding process.