Welds are usually known to be more sensitive to Hydrogen Embrittlement than base materials. Thus, characterization of HE in welds is a real concern for manufacturers as standard test methods do not address them. In this work, we have applied standard disk pressure tests to a martensitic stainless steel (X4CrNiMo 16.5.1) and then to a homogeneous weld made by electron beam. For this purpose, disks were cut from welded plates, the weld being located along disks diameter. First, behaviours of base/welded disks are compared. Then, the validity of results for welded disks is discussed in comparison to experiments performed with more usual HE tests (tensile tests …).