Destructive tests on welds in metallic materials. Hardness testing - Hardness test on arc welded joints

Destructive tests on welds in metallic materials. Hardness testing - Hardness test on arc welded joints

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1   Scope

This part of ISO 9015 specifies hardness tests on transverse sections of arc welded joints of metallic materials. It covers Vickers hardness tests in accordance with ISO 6507‑1, normally with test loads of 49,03 N or 98,07N (HV5 or HV 10).
However, the principles may be applied to Brinell hardness testing (with appropriate testing loads of HB 2,5/15,625 or HB 1/2,5) in accordance with ISO 6506‑1 and micro hardness testing in accordance with ISO 6507‑1 and ISO 9015‑2.

NOTE Testing should be carried out to ensure that the highest and the lowest level of hardness of both parent metal and weld metal is determined.

This part of ISO 9015 does not apply to test welds in austenitic stainless steels.