We do not have UT here, but I will radiograph it look for inclusions. The MP indications are certainly large enough to show up on the x-ray.
As far as toughness, we have no specific impact strength requirement. We are considering pressurizing to rupture one of "worst" of the questionable parts.
Our vendor for pressure vessel component made from 17-4 H1025 SS (per AMS5643)has reported that during the MP exam there are several bright and scattered indications. The indications extend through the ID feature of the component, not just the outer suface. The indications do NOT show with dye...
