ISO 16540:2015 PDF

Scope: This International Standard provides guidelines for the use of four-point bend testing to evaluate the resistance of metals including carbon steel, low alloy steels, and corrosion resistant alloys (CRAs) to stress corrosion cracking. The method gives guidance on testing of both parent plate and welds and includes procedures for metals that have no distinct yield point in their stress-strain behaviour as well as metals with a distinct yield point. The emphasis in this International Standard is on the generic methodology of the four-point bend test. Service application will be varied and the relevant industry standard is to be consulted where appropriate.

ISO 16540:2015 Referenced Document

ISO 11463:1995 Corrosion of metals and alloys - Evaluation of pitting corrosion
ISO 6892-1:2009 Metallic materials - Tensile testing - Part 1: Method of test at room temperature
ISO 6892-2:2011 Metallic materials - Tensile testing - Part 2: Method of test at elevated temperature
ISO 7539-1:2012 Corrosion of metals and alloys - Stress corrosion testing - Part 1: General guidance on testing procedures
ISO 7539-2:1989 Corrosion of metals and alloys - Stress corrosion testing - Part 2: Preparation and use of bent-beam specimens
ISO 7539-8:2000 Corrosion of metals and alloys - Stress corrosion testing - Part 8: Preparation and use of specimens to evaluate weldments
ISO 8044:2015 Corrosion of metals and alloys - Basic terms and definitions
ISO 8407:2009 Corrosion of metals and alloys - Removal of corrosion products from corrosion test specimens

2015 ISO 16540:2015 Corrosion of metals and alloys - Methodology for determining the resistance of metals to stress corrosion cracking using the four-point bend method