A contractor delivered three components, all are supposed to be in 1.4571. Part A is actually done in 1.4404 / (X2CrNiMo17-12-2) (according to pretty conclusive documentation). Part B is allegedly done in 1.4571 / (X6CrNiMoTi17-12-2), but the material looks like part A (shiny, silvery). Part C meanwhile is also allegedly done in 1.4571, but looks different (silvery gray). "Allegedly" means that for the documentation for parts B and C is far less conclusive.
So, from someone who has encountered both steels: Would I expect them to look the same?
Or, to rephrase my question: Part A and C look the same but, according to the documentation provided, should be different materials - does this tell me something is amiss?