ISO 5173:2023
Destructive tests on welds in metallic materials — Bend tests
This document 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 reveal imperfections on or near the surface of the test specimen which is under tension during bend testing and/or assess ductility. It also gives the dimensions of the test specimen.
In addition, this document specifies methods to be used instead of transverse bend tests with a former for welded joints when base materials, heat affected zones and/or weld 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 welding process.
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Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviated terms
5 Principle
6 Preparation of test specimens
6.1 General
6.2 Location
6.3 Marking
6.4 Heat treatment and/or ageing
6.5 Extraction
6.6 Specimen size
6.6.1 Transverse root and face bend tests of a butt weld (TRBB and TFBB)
6.6.2 Transverse side bend tests of a butt weld (TSBB)
6.6.3 Longitudinal bend tests of a butt weld (LFBB and LRBB)
6.6.4 Face bend tests of cladding material without a butt weld (FBC)
6.6.5 Side bend tests of cladding material without a butt weld (SBC)
6.6.6 Transverse face bend tests of cladding material with a butt weld (FBCB)
6.6.7 Side bend tests of cladding material with a butt weld (SBCB)
6.6.8 Dimensions
6.6.9 Surface preparation
7 Conditions of testing
7.1 Etching
7.2 Testing
7.2.1 General
7.2.2 Testing with a former
7.2.3 Testing with a roller
7.2.4 Bend testing with backing plate
7.3 Diameter of former and roller
7.3.1 Steel, nickel and nickel alloys
7.3.2 Aluminium and its alloys
7.4 Distance between and radius of parallel rollers
7.5 Bending angle
7.6 Bending elongation
8 Test results
9 Test report
Annex A (informative) Example of a test report
Bibliography
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Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviated terms
5 Principle
6 Preparation of test specimens
6.1 General
6.2 Location
6.3 Marking
6.4 Heat treatment and/or ageing
6.5 Extraction
6.6 Specimen size
6.6.1 Transverse root and face bend tests of a butt weld (TRBB and TFBB)
6.6.2 Transverse side bend tests of a butt weld (TSBB)
6.6.3 Longitudinal bend tests of a butt weld (LFBB and LRBB)
6.6.4 Face bend tests of cladding material without a butt weld (FBC)
6.6.5 Side bend tests of cladding material without a butt weld (SBC)
6.6.6 Transverse face bend tests of cladding material with a butt weld (FBCB)
6.6.7 Side bend tests of cladding material with a butt weld (SBCB)
6.6.8 Dimensions
6.6.9 Surface preparation
7 Conditions of testing
7.1 Etching
7.2 Testing
7.2.1 General
7.2.2 Testing with a former
7.2.3 Testing with a roller
7.2.4 Bend testing with backing plate
7.3 Diameter of former and roller
7.3.1 Steel, nickel and nickel alloys
7.3.2 Aluminium and its alloys
7.4 Distance between and radius of parallel rollers
7.5 Bending angle
7.6 Bending elongation
8 Test results
9 Test report
Annex A (informative) Example of a test report
Bibliography