This International Standard specifies the procedures for the hardness testing of etched cross sections of resistance spot, projection and seam welds.
The aim of the hardness tests is to determine the Vickers hardness, in the low load or microhardness range, of the weld nugget, the heat affected zone and parent metal in ferrous or non-ferrous metals for welds made in sheets of thickness ≥ 0,5 mm.
ISO 14271:2000 history
2017ISO 14271:2017 Resistance welding - Vickers hardness testing (low-force and microhardness) of resistance spot, projection, and seam welds
2012ISO 14271:2011/Cor 1:2012 Resistance welding — Vickers hardness testing (low-force and microhardness) of resistance spot, projection, and seam welds — Technical Corrigendum 1
2011ISO 14271:2011 Resistance welding - Vickers hardness testing (low-force and microhardness) of resistance spot, projection, and seam welds
2000ISO 14271:2000 Vickers hardness testing of resistance spot, projection and seam welds (low load and microhardness)