DIN ISO 22826:2008 PDF

Scope: This International Standard specifies the requirements for hardness testing of transverse sections of narrow laser and electron beam welded joints in metallic materials. It covers Vickers and Knoop hardness tests in accordance with ISO 6507-1 and ISO 4545, respectively, with test forces of 0,098 N to just under 98 N (HV 0,01 to just under HV 10) for the Vickers hardness test and test forces up to and including 9,8 N (just under HK 1) for the Knoop hardness test. This International Standard is applicable to welds made with or without filler wire. It may not be applicable to the testing of wider hybrid laser/arc welds. International Standards for hardness testing of welds without a narrow profile are ISO 9015-1 and ISO 9015-2.

DIN ISO 22826:2008 Referenced Document

ISO 10250 Metallic materials - Hardness testing - Tables of Knoop hardness values for use in tests made on flat surfaces
ISO 4545 Metallic materials; hardness test; Knoop test
ISO 4546 Metallic materials; hardness test; verification of Knoop hardness testing machines
ISO 4547 Metallic materials; hardness test; calibration of standardized blocks to be used for Knoop hardness testing machines
ISO 6507-1 Metallic materials — Vickers hardness test — Part 1: Test method*， 2023-08-01 Update
ISO 6507-2 Metallic materials - Vickers hardness test - Part 2: Verification and calibration of testing machines*， 2018-01-01 Update
ISO 6507-3 Metallic materials - Vickers hardness test - Part 3: Calibration of reference blocks*， 2018-01-01 Update
ISO/TR 16060 Destructive tests on welds in metallic materials - Etchants for macroscopic and microscopic examination

2021 DIN EN ISO 22826:2021 Destructive tests on welds in metallic materials - Hardness testing of narrow joints welded by laser and electron beam (Vickers and Knoop hardness tests) (ISO 22826:2005); German version EN ISO 22826:2021
2020 DIN EN ISO 22826:2020 Destructive tests on welds in metallic materials - Hardness testing of narrow joints welded by laser and electron beam (Vickers and Knoop hardness tests) (ISO 22826:2005); German and English version prEN ISO 22826:2020
2008 DIN ISO 22826:2008 Destructive tests on welds in metallic materials - Hardness testing of narrow joints welded by laser and electron beam (Vickers and Knoop hardness tests) (ISO 22826:2005)
0000 DIN ISO 22826:2005